Fix grammar and spelling in any selected text with one keystroke.
A lightweight macOS menu bar app powered by Claude.
Version 1.1.0 · macOS 13+ · Apple Silicon & Intel
- Select text anywhere on your Mac (Notes, Mail, Slack, VS Code, etc.)
- Press Cmd + Shift + R
- The text is corrected in place – grammar, spelling, and punctuation fixed instantly
No app switching. No copy-pasting. Just select, press, done.
- Download the DMG from Releases
- Drag Rewrite.app to Applications
- Launch Rewrite – it will appear in your menu bar
- Enter your API key – you'll need an Anthropic API key
- Grant permissions – macOS requires two permissions for Rewrite to work:
- Accessibility (System Settings → Privacy & Security → Accessibility) – allows Rewrite to copy and paste text
- Input Monitoring (System Settings → Privacy & Security → Input Monitoring) – allows the global keyboard shortcut to work in any app
- Relaunch Rewrite after granting both permissions
Note: If the shortcut stops working after an update, remove and re-add Rewrite in both permission lists, then relaunch.
- Global shortcut – works in any app, even when Rewrite is in the background
- Clipboard preserved – your clipboard is saved and restored after each rewrite
- Visual feedback – menu bar icon animates while rewriting, shows a warning on errors
- Error notifications – get a macOS notification if something goes wrong
- Customizable prompt – edit the rewriting instructions in Settings
- Customizable shortcut – change the hotkey in Settings
- Launch at login – optional, toggle in Settings
- Fast – uses Claude Haiku for ~1s response times
- Cheap – costs ~$0.0002 per rewrite (pennies per month)
- macOS 13 (Ventura) or later
- An Anthropic API key
- Accessibility permission (required to simulate copy/paste)
- Input Monitoring permission (required for global keyboard shortcut)
- Swift + AppKit
- Claude API (Haiku)
- HotKey for global shortcuts
- Zero other dependencies
Made by santiagoalonso.com