A virtual whip for your screen. Swing the mouse, flick it, crack. Runs on macOS, Windows, and Linux.
Download · Try it in the browser · Free
- Open Ctas, pick a whip, and click Start whipping.
- Swing the mouse and suddenly reverse direction. Crack.
- To stop, press ⌘⇧X (Mac), Ctrl+Alt+X (Windows, Linux), or Esc.
The overlay is click-through, so you can keep using your screen as usual. The Ctas window lives in the menu bar / system tray.
| OS | File |
|---|---|
| macOS 11+ | Ctas-macOS.dmg |
| Windows 10/11 | Ctas-Windows-setup.exe |
| Linux x64 (X11) | Ctas-Linux.AppImage / .deb |
- macOS: if it says the app is "damaged", run
xattr -cr /Applications/Ctas.app. - Windows: if SmartScreen appears, click More info → Run anyway.
Once installed, updates arrive automatically from inside the app.
Requires Node 22+ and stable Rust.
npm install
npm run dev # desktop app
npm run web # landing page at localhost:3000To release, bump version in src-tauri/tauri.conf.json and push to main. CI builds the installers and publishes the release.
Whip crack and swing recordings from Pixabay (Universfield, freesound_community).


