Double Kon

Every video, in your language. Live AI dubbing for the audio of any Chrome tab.

Watch any video in your own language, as it plays. Double Kon dubs the audio of the Chrome tab you're watching into the language you pick, live. The voice comes from Google's Gemini AI, and the original soundtrack keeps playing quietly underneath, so the music, the laughter and the feel of the scene are still there. DUB IN STEP WITH THE ORIGINAL On YouTube, the dub runs together with the video's original sound instead of trailing a few seconds behind it. Syncing comes at no hardware cost: no extra RAM, no extra load on your computer. You can also set the sync by hand. A slider moves it in tenths of a second, and the popup shows, live, how far apart the dub and the original sound are right now. ADAPTS TO EVERY LANGUAGE, LIVE The same sentence doesn't take the same time in every language. A short English line can come out much longer in Persian or German. Double Kon uses several adaptive engines that work live to shrink the dub's delay and match the length of speech across languages. And if a network problem interrupts the dub, Double Kon's notifications tell you, with the reason and how much of the dub was lost. HOW IT WORKS 1. Get a free Gemini API key from Google AI Studio and paste it into Double Kon once. 2. Open a video, click the Double Kon icon, and press Start. 3. Sit back and listen. ALSO • 78 dub languages, and Double Kon suggests the one you probably want • Works on the audio of any tab: videos, lectures, podcasts, live streams • Separate volume for the original sound and the dub • Auto speed-up (optional): plays the dub a little faster when it falls behind • Interface in 13 languages, five color themes, and a choice of toolbar icons PRIVACY • Your API key and settings stay on your device. • Tab audio goes only to Google's Gemini API, only while dubbing, and only after you press Start. • Nothing is sent to the developer. No analytics, no tracking, no ads. • The only website the extension can access is youtube.com, for video sync. You can turn video sync off. GOOD TO KNOW • You need your own Gemini API key. Usage is billed or limited by Google according to your Google account; Double Kon charges nothing. • The Gemini API is not available in every country. • The dub is machine-generated and can contain mistakes. • Sync dub with video currently works on YouTube only. Dubbing itself works on any site. Double Kon is an independent project and is not affiliated with, endorsed by, or sponsored by Google or YouTube. Website: https://doublekon.com Telegram: https://t.me/doublekon