A macOS app that routes URLs to different Google Chrome profiles based on regex rules. Set it as your default browser, and every link you click automatically opens in the right Chrome profile — work links go to your work profile, personal links to your personal profile, and so on.
- macOS 14.0+
- Swift 6.0 toolchain
- Google Chrome installed
brew install --cask suenyiyang/browser-atc/browser-atc
xattr -dr com.apple.quarantine "$(brew --caskroom)/browser-atc"/*/*.appAfter installation, open the app, then go to System Settings → Desktop & Dock → Default web browser and select Browser Air Traffic Controller.
make installThis builds the app and copies it to ~/Applications/BrowserATC.app.
Click the + button to create a routing rule. Each rule has:
- Pattern — a regex matched against the full URL (e.g.
github\.com/my-orgor.*\.slack\.com) - Profile — the Chrome profile to open matching URLs in
- Enabled — toggle rules on/off without deleting them
Rules are evaluated top-to-bottom; the first match wins. Drag to reorder.
In Settings, pick a fallback Chrome profile for URLs that don't match any rule.
Use the Test URL field in Settings to check which rule (if any) matches a given URL before you commit to it.
make build # Compile release binary
make run # Build, bundle, and launch the app
make clean # Remove build artifactsThe project uses Swift Package Manager — no Xcode project required. You can also open the directory in Xcode via open Package.swift.
The app registers as a browser handler for http/https schemes via its Info.plist. When macOS routes a URL to it, the app matches the URL against your rules using Swift's Regex API, launches Chrome with the --profile-directory flag for the matched profile, and immediately hides itself.
Chrome profiles are auto-detected by reading Chrome's Local State file. Rules are stored as JSON in ~/Library/Application Support/BrowserATC/.