Everything you need.
Nothing you don't.
SyncDub is built around one principle: dubbing should feel native, not bolted on. Every feature exists to make the video disappear and the content take over.
Translation that keeps up with the speaker.
Unlike legacy translators that buffer for 5–10 seconds, SyncDub streams translated speech in under 400 milliseconds.
Voices that sound human.
One consistent, beautifully articulated voice across 70+ languages. No robotic monotone.
Tuned with human breathing and cadence
Your audio stays yours.
Processed locally via encrypted WebRTC tunnels. Audio is never stored on disk.
Listen or read. One tap.
Switch between full AI voice dubbing and live synchronous subtitles without interrupting video playback.
Zero player dependencies.
Hooks directly into the browser's Web Audio pipeline. YouTube, Netflix, Coursera, Twitter, Twitch.
Keyboard-first shortcuts.
Control audio volume, swap languages, or toggle dubbing on the fly with native macOS and Windows shortcuts.
Frequently asked.
Stop reading subtitles.
Start listening in your language.
Install SyncDub in under 30 seconds. Experience real-time neural translation on your very next video.
Works on Chrome, Edge, Brave, Opera, Arc · No card required to try