AutoDub

AutoDub is a browser extension that translates and dubs foreign-language YouTube videos in real time. Once installed, it adds a button to the YouTube player that lets you pick from 42 target languages. The extension detects the original language automatically, generates translated subtitles, and plays an AI voiceover that matches the video's timing. It works on Chrome, Edge, Brave, and Firefox.

The translation runs on Google's latest AI models, and the voices are neural and lifelike. AutoDub processes captions on its servers, caches results per video, and requires no account or sign-in. It's optimized to have almost no impact on playback speed. The extension is free with no daily limits, and the company says it will announce any future paid features clearly in advance.

AutoDub is ideal for anyone who watches YouTube content in a language they don't speak fluently. It's especially useful for programming tutorials, educational channels like Veritasium and Kurzgesagt, long-form interviews, documentaries, and business talks. The main limitation is that it requires the video to have a subtitle track — YouTube's auto-generated captions usually work. If you've ever wished you could understand a creator from another country without relying on clunky subtitles, AutoDub makes that feel effortless.