Unofficial Facebook Messenger app
JavaScript CSS
Latest commit 35876fd Jan 9, 2017 @sindresorhus 1.8.0


Unofficial Facebook Messenger app


Background behavior

When closing the window, the app will continue running in the background, in the dock on macOS and the tray on Linux/Windows. Right-click the dock/tray icon and choose Quit to completely quit the app. On macOS, click the dock icon to show the window. On Linux, right-click the tray icon and choose Toggle to toggle the window. On Windows, click the tray icon to toggle the window.

If you like to have Caprine minimized on startup, open it from the command-line with the --minimize flag.

Dark mode

You can toggle dark mode in the Caprine menu or with Cmd D / Ctrl D.

Jump to conversation hotkey

You can switch conversations similar to how you switch browser tabs: Cmd/Ctrl n (where n is 1 through 9).

Compact mode

The interface adapts when resized to a small size.

Desktop notifications

Desktop notifications can be turned on in Preferences.

Always on Top

You can toggle whether Caprine stays on top of other windows in the Window/View menu or with Cmd/Ctrl Shift t.

Keyboard shortcuts

Description Keys
New conversation Cmd/Ctrl n
Search conversations Cmd/Ctrl f
Toggle "Dark mode" Cmd/Ctrl d
Next conversation Cmd/Ctrl ] or Ctrl Tab
Previous conversation Cmd/Ctrl [ or Ctrl Shift Tab
Jump to conversation Cmd/Ctrl 19
Mute conversation Cmd/Ctrl Shift m
Archive conversation Cmd/Ctrl Shift a
Delete conversation Cmd/Ctrl Shift d
Toggle "Always on Top" Cmd/Ctrl Shift t


macOS 10.9+, Windows 7+ & Linux are supported.


Homebrew Cask

$ brew update && brew cask install caprine


Download, unzip, and move to the /Applications directory.


Download and unzip to some location.

To add a shortcut to the app, create a file in ~/.local/share/applications called caprine.desktop with the following contents:

[Desktop Entry]


Download and unzip to some location.


Built with Electron.

  • Init: $ npm install
  • Run: $ npm start
  • Build macOS: $ npm run build:macos
  • Build Linux: $ npm run build:linux
  • Build Windows: $ npm run build:windows
  • Build all: $ brew install wine and $ npm run build (macOS only)



MIT © Sindre Sorhus