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🪟 Download for Windows 10/11

Version 3.14.3 · 79 MB · aiCat-Setup-3.14.3.exe

Not your system?

After it downloads

🍎 macOS

  1. Open the .dmg and drag aiCat into Applications.
  2. Double-click aiCat. macOS will refuse the first time — it says either “could not verify aiCat is free of malware” or “Apple cannot check it for malicious software”. Both mean the same thing: aiCat is not yet notarised by Apple. Press OK.
  3. Then let it through, once:
    • macOS 13 and newer: System Settings → Privacy & Security, scroll to the bottom, press Open Anyway next to the aiCat message.
    • macOS 12 Monterey and earlier: System Preferences → Security & Privacy → General → Open Anyway. Right-clicking the app and choosing Open works there too.
    • Neither offers it? One line in Terminal clears the flag the browser attached: xattr -dr com.apple.quarantine /Applications/aiCat.app
  4. aiCat will walk you through Privacy & Security → Accessibility and switch the toggle on. It needs this to read your selection and type the result back — nothing else.
  5. Select any text and press ⌥ Option.
Install from the Terminal instead — no security prompts at all

The warning comes from the quarantine flag your browser attaches to downloads. Fetching the file with curl never sets it, so aiCat just opens. Paste one block: 

curl -fL -o /tmp/aiCat.dmg \
  "https://aicat.fra1.cdn.digitaloceanspaces.com/releases/3.14.3/aiCat-3.14.3-arm64.dmg"
MP=$(hdiutil attach -nobrowse -readonly /tmp/aiCat.dmg | grep -o '/Volumes/.*')
cp -R "$MP/aiCat.app" /Applications/ && hdiutil detach "$MP" && rm /tmp/aiCat.dmg
open /Applications/aiCat.app

On an Intel Mac, swap the URL for aiCat-3.14.3-x64.dmg.

Already downloaded it in a browser? This clears the flag on the copy you have: 

xattr -dr com.apple.quarantine /Applications/aiCat.app

🪟 Windows

  1. Run aiCat-Setup.exe. SmartScreen may warn about a new publisher — choose More info → Run anyway.
  2. aiCat starts and puts a cat in your system tray.
  3. Select any text and press Alt.

🐧 Linux

  1. AppImage: chmod +x aiCat-*.AppImage && ./aiCat-*.AppImage
  2. Debian/Ubuntu: sudo dpkg -i aicat_*.deb
  3. Fedora: sudo rpm -i aicat-*.rpm
  4. X11 needs xdotool for selection capture: sudo apt install xdotool. On Wayland, use wl-clipboard and enable the floating ✨ button in settings.

Your first three minutes

1

Pick your languages

Your native language (used for translations and explanations) and the ones you also read or study.

2

Grant the permission

aiCat opens the right system window for you and shows exactly what it does with it.

3

Try it

Select a sentence, press the hotkey, watch it work. That is the whole onboarding.

See pricing →

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