terminal emulator.

kitty [options] [ program-to-run]

Run the kitty terminal emulator. For example: kitty sh -c "echo hello, world. Press ENTER to quit; read"

--class CLS Set the class part of the WM_CLASS window property. On Wayland, it sets the app id. Default: kitty
--name NAME Set the name part of the WM_CLASS property (defaults to using the value from kitty --class)
--title TITLE
Set the window title. This will override any title set by the program running inside kitty. So only use this if you are running a program that does not set titles. If combined with kitty --session the title will be used for all windows created by the session, that do not set their own titles.
--config CONFIG
Specify a path to the configuration file(s) to use. All configuration files are merged onto the builtin kitty.conf, overriding the builtin values. This option can be specified multiple times to read multiple configuration files in sequence, which are merged. Use the special value NONE to not load a config file.

If this option is not specified, config files are searched for in the order: $XDG_CON- FIG_HOME/kitty/kitty.conf, ~/.config/kitty/kitty.conf, $XDG_CONFIG_DIRS/kitty/kitty.conf. The first one that exists is used as the config file.

If the environment variable KITTY_CONFIG_DIRECTORY is specified, that directory is always used and the above searching does not happen.

If /etc/xdg/kitty/kitty.conf exists it is merged before (i.e. with lower priority) than any user config files. It can be used to specify system-wide defaults for all users.

--override OVERRIDE
Override individual configuration options, can be specified multiple times. Syntax: name=value. For example: kitty -o font_size=20
--directory DIRECTORY
--working-directory DIRECTORY
Change to the specified directory when launching Default: .
--detach Detach from the controlling terminal
--session SESSION Path to a file containing the startup session (tabs, windows, layout, programs). Use - to read from STDIN. See the README file for details and an example.
--watcher WATCHER,
Path to a python file. Appropriately named functions in this file will be called for various events, such as when the window is resized, focused or closed. See the section on watchers in the launch com- mand documentation launch. Relative paths are resolved relative to the kitty config directory. Note that this watcher will be added only to all initially created windows, not new windows created after startup.
--hold Remain open after child process exits. Note that this only affects the first window. Quit by either using the close window shortcut or pressing any key.
If specified only a single instance of kitty will run. New invocations will create a new top-level window in the existing kitty instance. This allows kitty to share a single sprite cache on the GPU and also reduces startup time. To have separate groups of kitty instances by use the kitty --instance-group option
--instance-group INSTANCE_GROUP Used in combination with the --single-instance . All kitty invocations with the same kitty --instance-group will result in new windows being created in the first kitty instance within that group
--wait-for-single-instance-window-close Normally, when using --single-instance, kitty will open a new window in an existing instance and quit immediately. With this option, it will not quit till the newly opened window is closed. Note that if no previous instance is found, then kitty will wait anyway, regardless of this option.
--listen-on LISTEN_ON Tell kitty to listen on the specified address for control messages. For example, kitty --listen-on=unix:/tmp/mykitty or kitty --listen-on=tcp:localhost:12345. On Linux systems, use abstract UNIX sockets, not associated with a file, like : kitty --listen-on=unix:@mykitty . Environment variables in the setting are expanded and relative paths are resolved with respect to the temporary directory. To control kitty, send it commands with kitty @ using @ --to to specify this address. This option will be ignored, unless you set allow_remote_control to yes in kitty.conf. if you run kitty @ within a kitty window, there is no need to specify the --to as it is read automatically from the environment. For UNIX sockets, this can also be specified in kitty.conf.
--start-as START_AS Control how the initial kitty window is created. Default: normal Choices: fullscreen, maximized, minimized, normal
Debugging options
--version, -v The current kitty version
--dump-commands Output commands received from child process to stdout
--replay-commands REPLAY_COMMANDS Replay previously dumped commands. Specify the path to a dump file previously created by --dump-commands. Open a new kitty window to replay the commands with: kitty sh -c "kitty --replay-commands /path/to/dump/file; read"
--dump-bytes DUMP_BYTES Path to file in which to store the raw bytes received from the child process
Debug rendering commands. This will cause all OpenGL calls to check for errors instead of ignoring them. outputs miscellaneous debug information. Useful when debugging rendering problems
causes kitty to display key and mouse events as they are received
--debug-font-fallback Output information about the selection of fallback fonts for characters not present in the main font.


kitty is capable of running multiple programs organized into tabs and windows.

The top level of organization is the Tab.
Each tab consists of one or more windows.
The windows can be arranged in multiple different layouts, like windows are organized in a tiling window manager.

The keyboard controls for tabs and windows are:


                                Action             Shortcut             on MacOS
                                line up         ctrl+shift+up           ++ and +^ 
                                line down       ctrl+shift+down         ++  and  +v  
                                page up         ctrl+shift+page_up      + 
                                page down       ctrl+shift+page_down    + 
                                to top          ctrl+shift+home         + 
                                to bottom       ctrl+shift+end          + 


New ctrl+shift+T +t Close ctrl+shift+Q +w Next ctrl+shift+right ^+ and ++] Previous ctrl+shift+left +^+ and ++[ Next layout ctrl+shift+L Move forward ctrl+shift+. Move backward ctrl+shift+, Set title ctrl+shift+alt+T ++i


New ctrl+shift+enter + New OS ctrl+shift+n +n Close ctrl+shift+w ++d Next ctrl+shift+] Previous ctrl+shift+[ Move forward ctrl+shift+f Move backward ctrl+shift+B Move to top ctrl+shift+` Focus ctrl+shift+1, ctrl+shift+2 ... ctrl+shift+0 +1, +2 ... +9 clockwise from the top-left) Define shortcuts to focus neighboring windows and move windows around (similar to window movement in vim): map ctrl+left neighboring_window left map ctrl+down neighboring_window down map shift+left move_window right map shift+down move_window up ... Shortcut to switch to the previously active window: map ctrl+p nth_window -1 nth_window will focus the nth window for positive numbers and the previously active windows for negative numbers. Detach the current window and move it to another tab or another OS window: moves the window into a new OS window map ctrl+f2 detach_window moves the window into a new Tab map ctrl+f3 detach_window new-tab asks which tab to move the window into map ctrl+f4 detach_window ask Detach the current tab, with: move the tab into a new OS window map ctrl+f2 detach_tab asks which OS Window to move the tab into map ctrl+f4 detach_tab ask Close all windows in a tab other than the currently active window: map f9 close_other_windows_in_tab


Action Shortcut macos Copy to clipboard ctrl+shift+c +c Paste from clipboard ctrl+shift+v +v Paste from selection ctrl+shift+s Increase font size ctrl+shift+equal ++ Decrease font size ctrl+shift+minus +- Restore font size ctrl+shift+backspace +0 Toggle fullscreen ctrl+shift+f11 ^++f Toggle maximized ctrl+shift+f10 Input unicode character ctrl+shift+u ^++space Click URL using the keyboard ctrl+shift+e Reset the terminal ctrl+shift+delete Reload kitty.conf ctrl+shift+f5 ^++f5 Debug kitty.conf ctrl+shift+f6 +option+f6 Pass current selection to program ctrl+shift+o Edit kitty config file ctrl+shift+f2 Open a kitty shell ctrl+shift+escape Increase background opacity ctrl+shift+a>m Decrease background opacity ctrl+shift+a>l Full background opacity ctrl+shift+a>1 Reset background opacity ctrl+shift+a>d


       open the config file within kitty by pressing ctrl+shift+f2.  
        Reload the config  file  within kitty  by  pressing ctrl+shift+f5 or sending kitty the SIGUSR1 signal.  
        the current configuration by pressing the ctrl+shift+f6 key.

       Pass  a  config   --config >file  or $KITTY_CONFIG_DIRECTORY .

       Comments have  # first in the line.

       Include secondary files via include.  A relative path is resolved with respect to the current config file. 
       environment variables are  expanded, so ${USER}.conf becomes name.conf if $USER=name.

  • CURSOR Customization
  • mouse


    font_family, bold_font, italic_font, bold_italic_font font_family monospace bold_font auto italic_font auto bold_italic_font auto specify different fonts for the bold/italic/bold-italic variants. FOr a full list of fonts list-fonts. By default they are derived , by the OSes font system. Setting them manually is useful for font families that have many weight variants like Book, Medium, Thick, etc. For example: font_family Operator Mono Book bold_font Operator Mono Medium italic_font Operator Mono Book Italic bold_italic_font Operator Mono Medium Italic font_size font_size 11.0 Font size (in pts) adjust_line_height, adjust_column_width adjust_line_height 0 adjust_column_width 0 Change the size of each character cell . use either numbers as pixels or percentages (number followed by %), as percentages of the unmodified values. Negative pixels or percentages less than 100% to reduce sizes (this might cause rendering artifacts). adjust_baseline adjust_baseline 0 Adjust the vertical alignment of text (the height in the cell at which text is positioned). Use either numbers, for as pixels or a percentages (number followed by %), as the percentage of the line height. A positive value moves the baseline up, and a negative value moves them down. The underline and strikethrough positions are adjusted accordingly. symbol_map symbol_map codepoints Font Family Name Map the specified unicode codepoints to a particular font. For special rendering for some symbols, such as for Powerline. Avoids the need for patched fonts. Each unicode code point is specified in the form U+. specify multiple code points, separated by commas and ranges separated by hyphens. symbol_map itself can be specified multiple times. symbol_map U+E0A0-U+E0A3,U+E0C0-U+E0C7 PowerlineSymbols disable_ligatures disable_ligatures never The default is to always render handle multi-character ligatures. . Not render them when the cursor is over them by using cursor to make editing easier, or have never render them at all by using always, if you don't like them. The ligature strategy can be set per-window either using the kitty remote control facility or by defining shortcuts for it in kitty.conf, for example: map alt+1 disable_ligatures_in active always map alt+2 disable_ligatures_in all never map alt+3 disable_ligatures_in tab cursor This refers to programming ligatures, typically implemented using the calt OpenType feature. For disabling general ligatures, use the font_features setting. font_features font_features none Choose exactly which OpenType features to enable or disable. This is useful as some fonts might have features worthwhile in a terminal. For example, Fira Code Retina includes a discretionary feature, zero, which in that font changes the appearance of the zero (0), to make it more easily distinguishable from O. Fira Code Retina also includes other discretionary features known as Stylistic Sets which have the tags ss01 through ss20. see the Harfbuzz documentation. this code is indexed by PostScript name, and not font family. This allows you to define very precise feature settings; e.g. disable a feature in the italic font but not in the regular font. On Linux, these are read from the FontConfig database first and then this, setting is applied, so they can be configured in a single, central place. To get the PostScript name for a font, use kitty + list-fonts --psnames: $ kitty + list-fonts --psnames | grep Fira Fira Code Fira Code Bold (FiraCode-Bold) Fira Code Light (FiraCode-Light) Fira Code Medium (FiraCode-Medium) Fira Code Regular (FiraCode-Regular) Fira Code Retina (FiraCode-Retina) The part in brackets is the PostScript name. Enable alternate zero and oldstyle numerals: font_features FiraCode-Retina +zero +onum Enable only alternate zero: font_features FiraCode-Retina +zero Disable the normal ligatures, but keep the calt feature which (in this font) breaks up monotony: font_features TT2020StyleB-Regular -liga +calt In conjunction with force_ltr, you may want to disable Arabic shaping entirely, and only look at their iso- lated forms if they show up in a document. You can do this with e.g.: font_features UnifontMedium +isol -medi -fina -init box_drawing_scale box_drawing_scale 0.001, 1, 1.5, 2 Change the sizes of the lines used for the box drawing unicode characters These values are in pts. They will be scaled by the monitor DPI to arrive at a pixel value. There must be four values corresponding to thin, normal, thick, and very thick lines. force_ltr force_ltr no No support BIDI (bidirectional text), to select a substring of an RTL-shaped string, you will get the character that would be there had the the string been LTR. default behavior is useful in with a filter to reverse the word order, manipulating RTL glyphs, so this option is provided to turn it off. Used FriBidi to get BIDI support

              cursor #cccccc
           Default cursor color
              cursor_text_color #111111
           Choose the color of text under the cursor. If you want it rendered with the background color of the cell  un-
           derneath instead, use the special keyword: background
              cursor_shape block
           The  cursor  shape  can  be one of (block, beam, underline). When reloading the config this will be
           changed only if the cursor shape has not been set by the program running in the terminal.
              cursor_beam_thickness 1.5
           Defines the thickness of the beam cursor (in pts)
              cursor_underline_thickness 2.0
           Defines the thickness of the underline cursor (in pts)
              cursor_blink_interval -1
           The interval (in seconds) at which to blink the cursor. Set to zero to disable blinking. Negative values mean
           use system default. Note that numbers smaller than repaint_delay will be limited to repaint_delay.
              cursor_stop_blinking_after 15.0
           Stop blinking cursor after the specified number of seconds of keyboard inactivity.  Set to zero to never stop


              scrollback_lines 2000
           Number of lines of history to keep in memory for scrolling back. Memory is allocated on demand. Negative num-
           bers  are  (effectively) infinite scrollback.  Note that using very large scrollback is not recommended as it
           can slow down performance of the terminal and  also  use  large  amounts  of  RAM.  Instead,  consider  using
           scrollback_pager_history_size.  Note  that on config reload if this is changed it will only affect newly cre-
           ated windows, not existing ones.
              scrollback_pager less --chop-long-lines --RAW-CONTROL-CHARS +INPUT_LINE_NUMBER
           Program with which to view scrollback in a new window. The scrollback buffer is passed as STDIN to this  pro-
           gram.  If  you  change it, make sure the program you use can handle ANSI escape sequences for colors and text
           formatting.  INPUT_LINE_NUMBER in the command line above will be replaced by an  integer  representing  which
           line should be at the top of the screen. Similarly CURSOR_LINE and CURSOR_COLUMN will be replaced by the cur-
           rent cursor position.
              scrollback_pager_history_size 0
           Separate scrollback history size, used only for browsing the scrollback buffer (in MB). This separate  buffer
           is  not  available  for  interactive scrolling but will be piped to the pager program when viewing scrollback
           buffer in a separate window. The current implementation stores the data in UTF-8,  so  approximatively  10000
           lines per megabyte at 100 chars per line, for pure ASCII text, unformatted text. A value of zero or less dis-
           ables this feature. The maximum allowed size is 4GB. Note that on config reload if this is  changed  it  will
           only affect newly created windows, not existing ones.
              scrollback_fill_enlarged_window no
           Fill new space with lines from the scrollback buffer after enlarging a window.
              wheel_scroll_multiplier 5.0
           Modify  the  amount  scrolled by the mouse wheel. Note this is only used for low precision scrolling devices,
           not for high precision scrolling on platforms such as macOS and  Wayland.  Use  negative  numbers  to  change
           scroll direction.
              touch_scroll_multiplier 1.0
           Modify  the  amount  scrolled  by  a touchpad. Note this is only used for high precision scrolling devices on
           platforms such as macOS and Wayland. Use negative numbers to change scroll direction.


    mouse_hide_wait mouse_hide_wait 3.0 Hide mouse cursor after the specified number of seconds of the mouse not being used. Set to zero to disable mouse cursor hiding. Set to a negative value to hide the mouse cursor immediately when typing text. Disabled by default on macOS as getting it to work robustly with the ever-changing sea of bugs that is Cocoa is too much effort. url_color, url_style url_color #0087bd url_style curly The color and style for highlighting URLs on mouse-over. url_style can be one of: none, single, double, curly open_url_with open_url_with default The program with which to open URLs that are clicked on. The special value default means to use the operating system's default URL handler. url_prefixes url_prefixes http https file ftp gemini irc gopher mailto news git The set of URL prefixes to look for when detecting a URL under the mouse cursor. detect_urls detect_urls yes Detect URLs under the mouse. Detected URLs are highlighted with an underline and the mouse cursor becomes a hand over them. Even if this option is disabled, URLs are still clickable. url_excluded_characters url_excluded_characters Additional characters to be disallowed from URLs, when detecting URLs under the mouse cursor. By default, all characters legal in URLs are allowed. copy_on_select copy_on_select no Copy to clipboard or a private buffer on select. With this set to clipboard, simply selecting text with the mouse will cause the text to be copied to clipboard. Useful on platforms such as macOS that do not have the concept of primary selections. You can instead specify a name such as a1 to copy to a private kitty buffer instead. Map a shortcut with the paste_from_buffer action to paste from this private buffer. For example: map cmd+shift+v paste_from_buffer a1 Note that copying to the clipboard is a security risk, as all programs, including websites open in your browser can read the contents of the system clipboard. strip_trailing_spaces strip_trailing_spaces never Remove spaces at the end of lines when copying to clipboard. A value of smart will do it when using normal selections, but not rectangle selections. always will always do it. select_by_word_characters select_by_word_characters @-./_~?&=%+# Characters considered part of a word when double clicking. In addition to these characters any character that is marked as an alphanumeric character in the unicode database will be matched. click_interval click_interval -1.0 The interval between successive clicks to detect double/triple clicks (in seconds). Negative numbers will use the system default instead, if available, or fallback to 0.5. focus_follows_mouse focus_follows_mouse no Set the active window to the window under the mouse when moving the mouse around pointer_shape_when_grabbed pointer_shape_when_grabbed arrow The shape of the mouse pointer when the program running in the terminal grabs the mouse. Valid values are: arrow, beam and hand default_pointer_shape default_pointer_shape beam The default shape of the mouse pointer. Valid values are: arrow, beam and hand pointer_shape_when_dragging pointer_shape_when_dragging beam The default shape of the mouse pointer when dragging across text. Valid values are: arrow, beam and hand

    Mouse actions

    Mouse buttons can be remapped to perform arbitrary actions. The syntax for doing so is: mouse_map button-name event-type modes action Where button-name is one of left, middle, right or b1 ... b8 with added keyboard modifiers, for example: ctrl+shift+left refers to holding the ctrl+shift keys while clicking with the left mouse button. The number b1 ... b8 can be used to refer to upto eight buttons on a mouse. event-type is one press, release, doublepress, triplepress, click and doubleclick. modes indicates whether the action is performed when the mouse is grabbed by the program running in the terminal, or not. It can have one or more or the values, grabbed,ungrabbed. grabbed refers to when the program running in the terminal has requested mouse events. Note that the click and double click events have a delay of click_interval to disam- biguate from double and triple presses. You can run kitty with the kitty --debug-input command line option to see mouse events. See the builtin ac- tions below to get a sense of what is possible. To unmap an action map it to no-op. For example, to disable opening of URLs with a plain click: mouse_map left click ungrabbed no-op Once a selection is started, releasing the button that started it will automatically end it and no release event will be dispatched. Click the link under the mouse cursor when no selection is created mouse_map left click ungrabbed mouse_click_url_or_select Click the link under the mouse cursor when no selection is created even if grabbed mouse_map shift+left click grabbed,ungrabbed mouse_click_url_or_select Click the link under the mouse cursor mouse_map ctrl+shift+left release grabbed,ungrabbed mouse_click_url Variant with ctrl+shift is present because the simple click based version has an unavoidable delay of click_interval, to disambiguate clicks from double clicks. Discard press event for link click mouse_map ctrl+shift+left press grabbed discard_event Prevent this press event from being sent to the program that has grabbed the mouse, as the corresponding re- lease event is used to open a URL. Paste from the primary selection mouse_map middle release ungrabbed paste_from_selection Start selecting text mouse_map left press ungrabbed mouse_selection normal Start selecting text in a rectangle mouse_map ctrl+alt+left press ungrabbed mouse_selection rectangle Select a word mouse_map left doublepress ungrabbed mouse_selection word Select a line mouse_map left triplepress ungrabbed mouse_selection line Select the entire line Select line from point mouse_map ctrl+alt+left triplepress ungrabbed mouse_selection line_from_point Select from the clicked point to the end of the line Extend the current selection mouse_map right press ungrabbed mouse_selection extend Paste from the primary selection even when grabbed mouse_map shift+middle release ungrabbed,grabbed paste_selection Start selecting text even when grabbed mouse_map shift+left press ungrabbed,grabbed mouse_selection normal Start selecting text in a rectangle even when grabbed mouse_map shift+ctrl+alt+left press ungrabbed,grabbed mouse_selection rectangle Select a word even when grabbed mouse_map shift+left doublepress ungrabbed,grabbed mouse_selection word Select a line even when grabbed mouse_map shift+left triplepress ungrabbed,grabbed mouse_selection line Select the entire line Select line from point even when grabbed mouse_map shift+ctrl+alt+left triplepress ungrabbed,grabbed mouse_selection line_from_point Select from the clicked point to the end of the line Extend the current selection even when grabbed mouse_map shift+right press ungrabbed,grabbed mouse_selection extend


    repaint_delay repaint_delay 10 Delay (in milliseconds) between screen updates. Decreasing it, increases frames-per-second (FPS) at the cost of more CPU usage. The default value yields ~100 FPS which is more than sufficient for most uses. Note that to actually achieve 100 FPS you have to either set sync_to_monitor to no or use a monitor with a high refresh rate. Also, to minimize latency when there is pending input to be processed, repaint_delay is ignored. input_delay input_delay 3 Delay (in milliseconds) before input from the program running in the terminal is processed. Note that de- creasing it will increase responsiveness, but also increase CPU usage and might cause flicker in full screen programs that redraw the entire screen on each loop, because kitty is so fast that partial screen updates will be drawn. sync_to_monitor sync_to_monitor yes Sync screen updates to the refresh rate of the monitor. This prevents tearing (- when scrolling. However, it limits the rendering speed to the refresh rate of your monitor. With a very high speed mouse/high keyboard repeat rate, you may notice some slight input latency. If so, set this to no.


    enable_audio_bell enable_audio_bell yes Enable/disable the audio bell. Useful in environments that require silence. visual_bell_duration visual_bell_duration 0.0 Visual bell duration. Flash the screen when a bell occurs for the specified number of seconds. Set to zero to disable. window_alert_on_bell window_alert_on_bell yes Request window attention on bell. Makes the dock icon bounce on macOS or the taskbar flash on linux. bell_on_tab bell_on_tab yes Show a bell symbol on the tab if a bell occurs in one of the windows in the tab and the window is not the currently focused window command_on_bell command_on_bell none Program to run when a bell occurs.


    remember_window_size, initial_window_width, initial_window_height remember_window_size yes initial_window_width 640 initial_window_height 400 If enabled, the window size will be remembered so that new instances of kitty will have the same size as the previous instance. If disabled, the window will initially have size configured by initial_win- dow_width/height, in pixels. You can use a suffix of "c" on the width/height values to have them interpreted as number of cells instead of pixels. enabled_layouts enabled_layouts * The enabled window layouts. A comma separated list of layout names. The special value all means all layouts. The first listed layout will be used as the startup layout. Default configuration is all layouts in alphabet- ical order. For a list of available layouts, see the layouts. window_resize_step_cells, window_resize_step_lines window_resize_step_cells 2 window_resize_step_lines 2 The step size (in units of cell width/cell height) to use when resizing windows. The cells value is used for horizontal resizing and the lines value for vertical resizing. window_border_width window_border_width 0.5pt The width of window borders. Can be either in pixels (px) or pts (pt). Values in pts will be rounded to the nearest number of pixels based on screen resolution. If not specified the unit is assumed to be pts. Note that borders are displayed only when more than one window is visible. They are meant to separate multiple windows. draw_minimal_borders draw_minimal_borders yes Draw only the minimum borders needed. This means that only the minimum needed borders for inactive windows are drawn. That is only the borders that separate the inactive window from a neighbor. Note that setting a non-zero window margin overrides this and causes all borders to be drawn. window_margin_width window_margin_width 0 The window margin (in pts) (blank area outside the border). A single value sets all four sides. Two values set the vertical and horizontal sides. Three values set top, horizontal and bottom. Four values set top, right, bottom and left. single_window_margin_width single_window_margin_width -1 The window margin (in pts) to use when only a single window is visible. Negative values will cause the value of window_margin_width to be used instead. A single value sets all four sides. Two values set the vertical and horizontal sides. Three values set top, horizontal and bottom. Four values set top, right, bottom and left. window_padding_width window_padding_width 0 The window padding (in pts) (blank area between the text and the window border). A single value sets all four sides. Two values set the vertical and horizontal sides. Three values set top, horizontal and bottom. Four values set top, right, bottom and left. placement_strategy placement_strategy center When the window size is not an exact multiple of the cell size, the cell area of the terminal window will have some extra padding on the sides. You can control how that padding is distributed with this option. Using a value of center means the cell area will be placed centrally. A value of top-left means the padding will be on only the bottom and right edges. active_border_color active_border_color #00ff00 The color for the border of the active window. Set this to none to not draw borders around the active window. inactive_border_color inactive_border_color #cccccc The color for the border of inactive windows bell_border_color bell_border_color #ff5a00 The color for the border of inactive windows in which a bell has occurred inactive_text_alpha inactive_text_alpha 1.0 Fade the text in inactive windows by the specified amount (a number between zero and one, with zero being fully faded). hide_window_decorations hide_window_decorations no Hide the window decorations (title-bar and window borders) with yes. On macOS, titlebar-only can be used to only hide the titlebar. Whether this works and exactly what effect it has depends on the window manager/oper- ating system. Note that the effects of changing this setting when reloading config are undefined. resize_debounce_time resize_debounce_time 0.1 The time (in seconds) to wait before redrawing the screen when a resize event is received. On platforms such as macOS, where the operating system sends events corresponding to the start and end of a resize, this number is ignored. resize_draw_strategy resize_draw_strategy static Choose how kitty draws a window while a resize is in progress. A value of static means draw the current win- dow contents, mostly unchanged. A value of scale means draw the current window contents scaled. A value of blank means draw a blank window. A value of size means show the window size in cells. resize_in_steps resize_in_steps no Resize the OS window in steps as large as the cells, instead of with the usual pixel accuracy. Combined with an initial_window_width and initial_window_height in number of cells, this option can be used to keep the margins as small as possible when resizing the OS window. Note that this does not currently work on Wayland. confirm_os_window_close confirm_os_window_close 0 Ask for confirmation when closing an OS window or a tab that has at least this number of kitty windows in it. A value of zero disables confirmation. This confirmation also applies to requests to quit the entire applica- tion (all OS windows, via the quit action).


    tab_bar_edge tab_bar_edge bottom Which edge to show the tab bar on, top or bottom tab_bar_margin_width tab_bar_margin_width 0.0 The margin to the left and right of the tab bar (in pts) tab_bar_margin_height tab_bar_margin_height 0.0 0.0 The margin above and below the tab bar (in pts). The first number is the margin between the edge of the OS Window and the tab bar and the second number is the margin between the tab bar and the contents of the cur- rent tab. tab_bar_style tab_bar_style fade The tab bar style, can be one of: fade, separator, powerline, or hidden. In the fade style, each tab's edges fade into the background color, in the separator style, tabs are separated by a configurable separator, and the powerline shows the tabs as a continuous line. If you use the hidden style, you might want to create a mapping for the select_tab action which presents you with a list of tabs and allows for easy switching to a tab. tab_bar_min_tabs tab_bar_min_tabs 2 The minimum number of tabs that must exist before the tab bar is shown tab_switch_strategy tab_switch_strategy previous The algorithm to use when switching to a tab when the current tab is closed. The default of previous will switch to the last used tab. A value of left will switch to the tab to the left of the closed tab. A value of right will switch to the tab to the right of the closed tab. A value of last will switch to the right-most tab. tab_fade tab_fade 0.25 0.5 0.75 1 Control how each tab fades into the background when using fade for the tab_bar_style. Each number is an alpha (between zero and one) that controls how much the corresponding cell fades into the background, with zero be- ing no fade and one being full fade. You can change the number of cells used by adding/removing entries to this list. tab_separator tab_separator " " The separator between tabs in the tab bar when using separator as the tab_bar_style. tab_powerline_style tab_powerline_style angled The powerline separator style between tabs in the tab bar when using powerline as the tab_bar_style, can be one of: angled, slanted, or round. tab_activity_symbol tab_activity_symbol none Some text or a unicode symbol to show on the tab if a window in the tab that does not have focus has some ac- tivity. tab_title_template tab_title_template "{title}" A template to render the tab title. The default just renders the title. If you wish to include the tab-index as well, use something like: {index}: {title}. Useful if you have shortcuts mapped for goto_tab N. If you prefer to see the index as a superscript, use {sup.index}. In addition you can use {layout_name} for the cur- rent layout name and {num_windows} for the number of windows in the tab. Note that formatting is done by Python's string formatting machinery, so you can use, for instance, {layout_name[:2].upper()} to show only the first two letters of the layout name, upper-cased. If you want to style the text, you can use styling di- rectives, for example: {}red{fmt.fg.default}normal{}green bg{}. Simi- larly, for bold and italic: {fmt.bold}bold{fmt.nobold}normal{fmt.italic}italic{fmt.noitalic}. active_tab_title_template active_tab_title_template none Template to use for active tabs, if not specified falls back to tab_title_template. active_tab_foreground, active_tab_background, active_tab_font_style, inactive_tab_foreground, inac- tive_tab_background, inactive_tab_font_style active_tab_foreground #000 active_tab_background #eee active_tab_font_style bold-italic inactive_tab_foreground #444 inactive_tab_background #999 inactive_tab_font_style normal Tab bar colors and styles tab_bar_background tab_bar_background none Background color for the tab bar. Defaults to using the terminal background color.


    foreground, background foreground #dddddd background #000000 The foreground and background colors background_opacity background_opacity 1.0 The opacity of the background. A number between 0 and 1, where 1 is opaque and 0 is fully transparent. This will only work if supported by the OS (for instance, when using a compositor under X11). Note that it only sets the background color's opacity in cells that have the same background color as the default terminal background. This is so that things like the status bar in vim, powerline prompts, etc. still look good. But it means that if you use a color theme with a background color in your editor, it will not be rendered as transparent. Instead you should change the default background color in your kitty config and not use a back- ground color in the editor color scheme. Or use the escape codes to set the terminals default colors in a shell script to launch your editor. Be aware that using a value less than 1.0 is a (possibly significant) performance hit. If you want to dynamically change transparency of windows set dynamic_background_opacity to yes (this is off by default as it has a performance cost). Changing this setting when reloading the config will only work if dynamic_background_opacity was enabled in the original config. background_image background_image none Path to a background image. Must be in PNG format. background_image_layout background_image_layout tiled Whether to tile or scale the background image. background_image_linear background_image_linear no When background image is scaled, whether linear interpolation should be used. dynamic_background_opacity dynamic_background_opacity no Allow changing of the background_opacity dynamically, using either keyboard shortcuts (ctrl+shift+a>m and ctrl+shift+a>l) or the remote control facility. Changing this setting by reloading the config is not sup- ported. background_tint background_tint 0.0 How much to tint the background image by the background color. The tint is applied only under the text area, not margin/borders. Makes it easier to read the text. Tinting is done using the current background color for each window. This setting applies only if background_opacity is set and transparent windows are supported or background_image is set. dim_opacity dim_opacity 0.75 How much to dim text that has the DIM/FAINT attribute set. One means no dimming and zero means fully dimmed (i.e. invisible). selection_foreground selection_foreground #000000 The foreground for text selected with the mouse. A value of none means to leave the color unchanged. selection_background selection_background #fffacd The background for text selected with the mouse. The color table The 256 colors. 8 basic colors, each has a dull and bright version, for the first 16 colors. Set the remaining 240 colors as color16 to color255. color0, color8 color0 #000000 color8 #767676 black color1, color9 color1 #cc0403 color9 #f2201f red color2, color10 color2 #19cb00 color10 #23fd00 green color3, color11 color3 #cecb00 color11 #fffd00 yellow color4, color12 color4 #0d73cc color12 #1a8fff blue color5, color13 color5 #cb1ed1 color13 #fd28ff magenta color6, color14 color6 #0dcdcd color14 #14ffff cyan color7, color15 color7 #dddddd color15 #ffffff white mark1_foreground mark1_foreground black Color for marks of type 1 mark1_background mark1_background #98d3cb Color for marks of type 1 (light steel blue) mark2_foreground mark2_foreground black Color for marks of type 2 mark2_background mark2_background #f2dcd3 Color for marks of type 1 (beige) mark3_foreground mark3_foreground black Color for marks of type 3 mark3_background mark3_background #f274bc Color for marks of type 3 (violet)


    shell shell . The shell program to execute. The default value of . means to use whatever shell is set as the default shell for the current user. Note that on macOS if you change this, you might need to add --login to ensure that the shell starts in interactive mode and reads its startup rc files. editor editor . The console editor to use when editing the kitty config file or similar tasks. A value of . means to use the environment variables VISUAL and EDITOR in that order. Note that this environment variable has to be set not just in your shell startup scripts but system-wide, otherwise kitty will not see it. close_on_child_death close_on_child_death no Close the window when the child process (shell) exits. If no (the default), the terminal will remain open when the child exits as long as there are still processes outputting to the terminal (for example disowned or backgrounded processes). If yes, the window will close as soon as the child process exits. Note that setting it to yes means that any background processes still using the terminal can fail silently because their std- out/stderr/stdin no longer work. allow_remote_control allow_remote_control no Allow other programs to control kitty. If you turn this on other programs can control all aspects of kitty, including sending text to kitty windows, opening new windows, closing windows, reading the content of win- dows, etc. Note that this even works over ssh connections. You can chose to either allow any program running within kitty to control it, with yes or only programs that connect to the socket specified with the kitty --listen-on command line option, if you use the value socket-only. The latter is useful if you want to pre- vent programs running on a remote computer over ssh from controlling kitty. Changing this option by reloading the config will only affect newly created windows. listen_on listen_on none Tell kitty to listen to the specified unix/tcp socket for remote control connections. Note that this will ap- ply to all kitty instances. It can be overridden by the kitty --listen-on command line flag. This option ac- cepts only UNIX sockets, such as unix:${TEMP}/mykitty or (on Linux) unix:@mykitty. Environment variables are expanded. If {kitty_pid} is present then it is replaced by the PID of the kitty process, otherwise the PID of the kitty process is appended to the value, with a hyphen. This option is ignored unless you also set allow_remote_control to enable remote control. See the help for kitty --listen-on for more details. Changing this option by reloading the config is not supported. env env Specify environment variables to set in all child processes. Note that environment variables are expanded re- cursively, so if you use: env MYVAR1=a env MYVAR2=${MYVAR1}/${HOME}/b The value of MYVAR2 will be a//b. update_check_interval update_check_interval 24 Periodically check if an update to kitty is available. If an update is found a system notification is dis- played informing you of the available update. The default is to check every 24 hrs, set to zero to disable. Changing this option by reloading the config is not supported. startup_session startup_session none Path to a session file to use for all kitty instances. Can be overridden by using the kitty --session command line option for individual instances. See sessions in the kitty documentation for details. Note that relative paths are interpreted with respect to the kitty config directory. Environment variables in the path are ex- panded. Changing this option by reloading the config is not supported. clipboard_control clipboard_control write-clipboard write-primary Allow programs running in kitty to read and write from the clipboard. You can control exactly which actions are allowed. The set of possible actions is: write-clipboard read-clipboard write-primary read-primary. You can additionally specify no-append to disable kitty's protocol extension for clipboard concatenation. The de- fault is to allow writing to the clipboard and primary selection with concatenation enabled. Note that en- abling the read functionality is a security risk as it means that any program, even one running on a remote server via SSH can read your clipboard. allow_hyperlinks allow_hyperlinks yes Process hyperlink (OSC 8) escape sequences. If disabled OSC 8 escape sequences are ignored. Otherwise they become clickable links, that you can click by holding down ctrl+shift and clicking with the mouse. The spe- cial value of ask means that kitty will ask before opening the link. term term xterm-kitty The value of the TERM environment variable to set. Changing this can break many terminal programs, only change it if you know what you are doing, not because you read some advice on Stack Overflow to change it. The TERM variable is used by various programs to get information about the capabilities and behavior of the terminal. If you change it, depending on what programs you run, and how different the terminal you are chang- ing it to is, various things from key-presses, to colors, to various advanced features may not work. Changing this option by reloading the config will only affect newly created windows.


    wayland_titlebar_color wayland_titlebar_color system Change the color of the kitty window's titlebar on Wayland systems with client side window decorations such as GNOME. A value of system means to use the default system color, a value of background means to use the background color of the currently active window and finally you can use an arbitrary color, such as #12af59 or red. macos_titlebar_color macos_titlebar_color system Change the color of the kitty window's titlebar on macOS. A value of system means to use the default system color, a value of background means to use the background color of the currently active window and finally you can use an arbitrary color, such as #12af59 or red. WARNING: This option works by using a hack, as there is no proper Cocoa API for it. It sets the background color of the entire window and makes the titlebar trans- parent. As such it is incompatible with background_opacity. If you want to use both, you are probably better off just hiding the titlebar with hide_window_decorations. macos_option_as_alt macos_option_as_alt no Use the option key as an alt key. With this set to no, kitty will use the macOS native Option+Key = unicode character behavior. This will break any Alt+key keyboard shortcuts in your terminal programs, but you can use the macOS unicode input technique. You can use the values: left, right, or both to use only the left, right or both Option keys as Alt, instead. Changing this setting by reloading the config is not supported. macos_hide_from_tasks macos_hide_from_tasks no Hide the kitty window from running tasks (+Tab) on macOS. Changing this setting by reloading the config is not supported. macos_quit_when_last_window_closed macos_quit_when_last_window_closed no Have kitty quit when all the top-level windows are closed. By default, kitty will stay running, even with no open windows, as is the expected behavior on macOS. macos_window_resizable macos_window_resizable yes Disable this if you want kitty top-level (OS) windows to not be resizable on macOS. Changing this setting by reloading the config will only affect newly created windows. macos_thicken_font macos_thicken_font 0 Draw an extra border around the font with the given width, to increase legibility at small font sizes. For example, a value of 0.75 will result in rendering that looks similar to sub-pixel antialiasing at common font sizes. macos_traditional_fullscreen macos_traditional_fullscreen no Use the traditional full-screen transition, that is faster, but less pretty. macos_show_window_title_in macos_show_window_title_in all Show or hide the window title in the macOS window or menu-bar. A value of window will show the title of the currently active window at the top of the macOS window. A value of menubar will show the title of the cur- rently active window in the macOS menu-bar, making use of otherwise wasted space. all will show the title ev- erywhere and none hides the title in the window and the menu-bar. macos_custom_beam_cursor macos_custom_beam_cursor no Enable/disable custom mouse cursor for macOS that is easier to see on both light and dark backgrounds. WARN- ING: this might make your mouse cursor invisible on dual GPU machines. Changing this setting by reloading the config is not supported. linux_display_server linux_display_server auto Choose between Wayland and X11 backends. By default, an appropriate backend based on the system state is chosen automatically. Set it to x11 or wayland to force the choice. Changing this setting by reloading the config is not supported.


    Keys are identified by their lowercase unicode characters. For example: a for the A key, [ for the left square bracket key, etc. For function keys, such as Enter or Escape the names are present at functional. For a list of modifier names, see: GLFW mods On Linux use XKB key names to bind keys that are not supported by GLFW. See XKB keys for a list of key names. The name to use is the part after the XKB_KEY_ prefix. Only use an XKB key name for keys that are not known as GLFW keys. Use raw system key codes to map keys, only for keys that are not known as GLFW keys. To see the system key code for a key, start kitty with the kitty --debug-input option. kitty will output some debug text for every key event. In that text look for native_code the value of that becomes the key name in the shortcut. For example: on_key_input: glfw key: 65 native_code: 0x61 action: PRESS mods: 0x0 text: 'a' The key name for the A key is 0x61 use it with: map ctrl+0x61 something To map ctrl+a to something. Use the special action no_op to unmap a keyboard shortcut that is assigned in the default configuration: map kitty_mod+space no_op Combine multiple actions to be triggered by a single shortcut, using map key combine action1 action2 action3 ... For example: map kitty_mod+e combine : new_window : next_layout this will create a new window and switch to the next available layout Use multi-key shortcuts use map key1>key2>key3 action For example: map ctrl+f>2 set_font_size 20 kitty_mod kitty_mod ctrl+shift The value of kitty_mod is used as the modifier for all default shortcuts, change it in kitty.conf to change the modifiers for all the default shortcuts. clear_all_shortcuts clear_all_shortcuts no have kitty remove all shortcut definition seen up to this point. Useful, for instance, to remove the default shortcuts. kitten_alias kitten_alias hints hints --hints-offset=0 Create aliases for kitten names, this allows overriding the defaults for kitten options and can also be used to shorten repeated mappings of the same kitten with a specific group of options. For example, the above alias changes the default value of kitty +kitten hints --hints-offset to zero for all mappings, includ- ing the builtin ones.


    Copy to clipboard map ctrl+shift+c copy_to_clipboard There is also a copy_or_interrupt action that can be optionally mapped to Ctrl+c. It will copy only if there is a selection and send an interrupt otherwise. Similarly, copy_and_clear_or_interrupt will copy and clear the selection or send an interrupt if there is no selection. Paste from clipboard map ctrl+shift+v paste_from_clipboard Paste from selection map ctrl+shift+s paste_from_selection map shift+insert paste_from_selection Pass selection to program map ctrl+shift+o pass_selection_to_program Pass the contents of the current selection to any program using pass_selection_to_program. By default, the system's open program is used, but you can specify your own, the selection will be passed as a command line argument to the program, for example: map kitty_mod+o pass_selection_to_program firefox Pass the current selection to a terminal program running in a new kitty window, by using the @selection placeholder: map kitty_mod+y new_window less @selection


    Scroll line up map ctrl+shift+up scroll_line_up map ctrl+shift+k scroll_line_up map alt+cmd+page_up scroll_line_up map cmd+up scroll_line_up Scroll line down map ctrl+shift+down scroll_line_down map ctrl+shift+j scroll_line_down map alt+cmd+page_down scroll_line_down map cmd+down scroll_line_down Scroll page up map ctrl+shift+page_up scroll_page_up map cmd+page_up scroll_page_up Scroll page down map ctrl+shift+page_down scroll_page_down map cmd+page_down scroll_page_down Scroll to top map ctrl+shift+home scroll_home map cmd+home scroll_home Scroll to bottom map ctrl+shift+end scroll_end map cmd+end scroll_end Browse scrollback buffer in less map ctrl+shift+h show_scrollback To pipe the contents of the current screen + history buffer as STDIN to an arbitrary program using the launch function. For example, the following opens the scrollback buffer in less in an overlay window: map f1 launch --stdin-source=@screen_scrollback --stdin-add-formatting --type=overlay less +G -R For more details on piping screen and buffer contents to external programs, see launch.

    Window management

    New window map ctrl+shift+enter new_window map cmd+enter new_window Open a new window running an arbitrary program, for example: map kitty_mod+y launch mutt Open a new window with the current working directory set to the working directory of the current window using: map ctrl+alt+enter launch --cwd=current Open a new window that is allowed to control kitty via the kitty remote control facility by prefixing the command line with @. Any programs running in that window will be allowed to control kitty. For example: map ctrl+enter launch --allow-remote-control some_program Open a new window next to the currently active window or as the first window, with: map ctrl+n launch --location=neighbor some_program map ctrl+f launch --location=first some_program For more details, see launch. New OS window map ctrl+shift+n new_os_window map cmd+n new_os_window Works like new_window above, except that it opens a top level OS kitty window. Use new_os_window_with_cwd to open a window with the current working directory. Close window map ctrl+shift+w close_window map shift+cmd+d close_window Next window map ctrl+shift+] next_window Previous window map ctrl+shift+[ previous_window Move window forward map ctrl+shift+f move_window_forward Move window backward map ctrl+shift+b move_window_backward Move window to top map ctrl+shift+` move_window_to_top Start resizing window map ctrl+shift+r start_resizing_window map cmd+r start_resizing_window First window map ctrl+shift+1 first_window map cmd+1 first_window Second window map ctrl+shift+2 second_window map cmd+2 second_window Third window map ctrl+shift+3 third_window map cmd+3 third_window Ninth window map ctrl+shift+9 ninth_window map cmd+9 ninth_window Tenth window map ctrl+shift+0 tenth_window

    Tab management

    Next tab map ctrl+shift+right next_tab map shift+cmd+] next_tab map ctrl+tab next_tab Previous tab map ctrl+shift+left previous_tab map shift+cmd+[ previous_tab map shift+ctrl+tab previous_tab New tab map ctrl+shift+t new_tab map cmd+t new_tab Close tab map ctrl+shift+q close_tab map cmd+w close_tab Close OS window map shift+cmd+w close_os_window Move tab forward map ctrl+shift+. move_tab_forward Move tab backward map ctrl+shift+, move_tab_backward Set tab title map ctrl+shift+alt+t set_tab_title map shift+cmd+i set_tab_title create shortcuts to go to specific tabs, with 1 being the first tab, 2 the second tab and -1 being the previously active tab, and any number larger than the last tab being the last tab: map ctrl+alt+1 goto_tab 1 map ctrl+alt+2 goto_tab 2 Pass the name of arbitrary commands to run when using new_tab and use new_tab_with_cwd. to have the new tab to open next to the current tab rather than at the end of the tabs list, use: map ctrl+t new_tab !neighbor [optional cmd to run]

    Layout management

    Next layout map ctrl+shift+l next_layout Create shortcuts to switch to specific layouts: map ctrl+alt+t goto_layout tall map ctrl+alt+s goto_layout stack switch back to the previous layout: map ctrl+alt+p last_used_layout

    Font sizes

    Change the font size for all top-level kitty OS windows at a time or only the current one. Increase font size map ctrl+shift+equal change_font_size all +2.0 map ctrl+shift+plus change_font_size all +2.0 map ctrl+shift+kp_add change_font_size all +2.0 map cmd+plus change_font_size all +2.0 map cmd+equal change_font_size all +2.0 map cmd+shift+equal change_font_size all +2.0 Decrease font size map ctrl+shift+minus change_font_size all -2.0 map ctrl+shift+kp_subtract change_font_size all -2.0 map cmd+minus change_font_size all -2.0 map cmd+shift+minus change_font_size all -2.0 Reset font size map ctrl+shift+backspace change_font_size all 0 map cmd+0 change_font_size all 0 To setup shortcuts for specific font sizes: map kitty_mod+f6 change_font_size all 10.0 To setup shortcuts to change only the current OS window's font size: map kitty_mod+f6 change_font_size current 10.0 Select and act on visible text Use the hints kitten to select text and either pass it to an external program or insert it into the terminal or copy it to the clipboard. Open URL map ctrl+shift+e kitten hints Open a currently visible URL using the keyboard. The program used to open the URL is specified in open_url_with. Insert selected path map ctrl+shift+p>f kitten hints --type path --program - Select a path/filename and insert it into the terminal. Useful, for instance to run git commands on a file- name output from a previous git command. Open selected path map ctrl+shift+p>shift+f kitten hints --type path Select a path/filename and open it with the default open program. Insert selected line map ctrl+shift+p>l kitten hints --type line --program - Select a line of text and insert it into the terminal. Use for the output of things like: ls -1 Insert selected word map ctrl+shift+p>w kitten hints --type word --program - Select words and insert into terminal. Insert selected hash map ctrl+shift+p>h kitten hints --type hash --program - Select something that looks like a hash and insert it into the terminal. Useful with git, which uses sha1 hashes to identify commits Open the selected file at the selected line map ctrl+shift+p>n kitten hints --type linenum Select something that looks like filename:linenum and open it in vim at the specified line number. Open the selected hyperlink map ctrl+shift+p>y kitten hints --type hyperlink Select a hyperlink (i.e. a URL that has been marked as such by the terminal program, for example, by ls --hyperlink=auto). The hints kitten has many more modes of operation that you can map to different shortcuts. For a full description see kittens/hints.


    Toggle fullscreen map ctrl+shift+f11 toggle_fullscreen Toggle maximized map ctrl+shift+f10 toggle_maximized Unicode input map ctrl+shift+u kitten unicode_input map cmd+ctrl+space kitten unicode_input Edit config file map ctrl+shift+f2 edit_config_file map cmd+, edit_config_file Open the kitty command shell map ctrl+shift+escape kitty_shell window Open the kitty shell in a new window/tab/overlay/os_window to control kitty using commands. Increase background opacity map ctrl+shift+a>m set_background_opacity +0.1 Decrease background opacity map ctrl+shift+a>l set_background_opacity -0.1 Make background fully opaque map ctrl+shift+a>1 set_background_opacity 1 Reset background opacity map ctrl+shift+a>d set_background_opacity default Reset the terminal map ctrl+shift+delete clear_terminal reset active map cmd+option+r clear_terminal reset active You can create shortcuts to clear/reset the terminal. For example: # Reset the terminal map kitty_mod+f9 clear_terminal reset active # Clear the terminal screen by erasing all contents map kitty_mod+f10 clear_terminal clear active # Clear the terminal scrollback by erasing it map kitty_mod+f11 clear_terminal scrollback active # Scroll the contents of the screen into the scrollback map kitty_mod+f12 clear_terminal scroll active To operate on all windows all instead of active. Map Ctrl+L to both scroll the current screen contents into the scrollback buffer and clear the screen. for example, for ZSH add the following to ~/.zshrc: scroll-and-clear-screen() { printf '\n%.0s' {1..$LINES} zle clear-screen } zle -N scroll-and-clear-screen bindkey '^l' scroll-and-clear-screen Reload kitty.conf map ctrl+shift+f5 load_config_file map cmd+control+, load_config_file Reload kitty.conf, applying any changes since the last time it was loaded. Note that a handful of settings cannot be dynamically changed and require a full restart of kitty. You can also map a keybinding to load a different config file, for example: map f5 load_config /path/to/alternative/kitty.conf new conf settings replace the old ones. Debug kitty configuration map ctrl+shift+f6 debug_config map cmd+option+, debug_config Show details about exactly what configuration kitty is running with and its host environment. Useful for debugging issues. Send arbitrary text on key presses font_features UnifontMedium +isol -medi -fina -init Copy to clipboard map cmd+page_down scroll_page_down map ctrl+shift+h show_scrollback To pipe the contents of the current screen + history buffer as STDIN to an arbitrary program using the launch function. For example, the following opens the scrollback buffer in less in an overlay window: map f1 launch --stdin-source=@screen_scrollback --stdin-add-formatting --type=overlay less +G -R For more details on piping screen and buffer contents to external programs, see launch. map ctrl+shift+n new_os_window map cmd+n new_os_window Works like new_window above, except that it opens a top level OS kitty window. In particular you can use new_os_window_with_cwd to open a window with the current working directory. Close window map ctrl+shift+w close_window map shift+cmd+d close_window Next window map ctrl+shift+] next_window Previous window map ctrl+shift+[ previous_window Move window forward map ctrl+shift+f move_window_forward Move window backward map ctrl+shift+b move_window_backward Move window to top map ctrl+shift+` move_window_to_top Start resizing window map ctrl+shift+r start_resizing_window map cmd+r start_resizing_window map ctrl+shift+t new_tab map cmd+t new_tab Miscellaneous To send arbitrary (UTF-8) encoded text to the client program when pressing specified shortcut keys. For example: map ctrl+alt+a send_text all Special text This will send "Special text" when you press the ctrl+alt+a key combination. The text to be sent is a python string literal so you can use escapes like \x1b to send control codes or \u21fb to send unicode characters (or you can just input the unicode characters directly as UTF-8 text). The first argument to send_text is the keyboard modes in which to activate the shortcut. The possible values are normal or application or kitty or a comma separated combination of them. The special keyword all means all modes. The modes normal and applica- tion refer to the DECCKM cursor key mode for terminals, and kitty refers to the special kitty extended key- board protocol. Another example, that outputs a word and then moves the cursor to the start of the line (same as pressing the Home key): map ctrl+alt+a send_text normal Word\x1b[H map ctrl+alt+a send_text application Word\x1bOH
    SAMPLE KITTY.CONF a fully commented sample kitty.conf by pressing the ctrl+shift+f2 shortcut in kitty. This will generate a config file with full documentation and all settings commented out. If you have an existing kitty.conf, that will be used , delete it to see the sample file.


    COPYRIGHT 2022, Kovid Goyal

    kitty config