Yab opens the source for its Mac, iPhone and Android apps

Yab has opened the source for its Mac, iPhone and Android apps.

The repository is licensed under Apache 2.0 and holds the native Mac browser, the iPhone app and the Android app. Yab calls itself the best Arc alternative, with every feature included, and says it's now built with the community. The Yab name, logo and app icons stay under trademark and aren't covered by that license.

The official Mac app is still a free download, and it needs macOS 15.4 or later. The iPhone app is in public beta on TestFlight, and the Android app is an alpha APK on Yab's site. To build it yourself on a Mac with Xcode 26 or later, clone the repo and run ./build.sh. That makes Yab Dev, a copy with its own settings, data and keychain items that runs beside the official app. It's signed ad hoc, so you don't need an Apple developer account.

Yab is a native Mac browser that runs pages on WebKit by default, or on Chromium per tab or per site on Apple silicon, with Chrome extensions, DevTools and the Chrome Web Store. Agents from the AI providers you already pay for can work in tabs of their own with your sign-ins. They never see a private tab, and they ask before they send, pay or delete. Optional sync between your Macs and iPhone is end-to-end encrypted.