Works on videos whose player exposes a subtitle track — most course platforms do.
Not a robotic caption reader. Voxylio reconstructs sentences, keeps one consistent voice, and adapts its pace to the speaker.
Caption fragments are merged into complete sentences before translation, so the voice flows naturally and translations keep their context.
Uses Chrome's built-in on-device translation API first — free, private and offline-friendly — with an online fallback when unavailable.
Speech follows the video clock: pause, seek or replay and the voice follows instantly. Gentle rate adaptation keeps long sentences intelligible.
A single voice is picked per session for coherence. Choose any installed system voice, including premium natural voices on macOS.
A draggable on-page controller lets you toggle dubbing, switch language, adjust speed and duck the original audio without leaving the video.
Dub any subtitled video into 65+ languages — French, Spanish, Japanese, Arabic, Hindi and more. Switching languages mid-video is instant and never mixes voices.
Once the extension is installed, everything happens on its own:
The extension finds the video player on the page — even inside shadow DOM players like Mux — and reads its English subtitle track.
Upcoming sentences are translated ahead of playback with Chrome's local translation model, cached per language.
A synthesized voice speaks each sentence at the right moment while the original audio is automatically lowered.
Try it — every control on this popup actually works →
Play the video, then flip the switch: the voice follows the subtitles in the chosen language. At 0%, only the dub is audible.
The source language is auto-detected — dub from any language into yours.
English
English
中文
Chinese
हिन्दी
Hindi
Español
Spanish
Français
French
العربية
Arabic
বাংলা
Bengali
Português
Portuguese
Русский
Russian
اردو
Urdu
Bahasa Indonesia
Indonesian
Deutsch
German
日本語
Japanese
한국어
Korean
Tiếng Việt
Vietnamese
Türkçe
Turkish
Italiano
Italian
فارسی
Persian
Polski
Polish
Українська
Ukrainian
Nederlands
Dutch
ไทย
Thai
Svenska
Swedish
Română
Romanian
Ελληνικά
Greek
Čeština
Czech
עברית
Hebrew
Magyar
Hungarian
Dansk
Danish
Suomi
Finnish
Other tools capture your tab's audio, run speech recognition in the cloud, and bill by the hour. Voxylio reads the official subtitles instead.
Comparison with audio-capture dubbing extensions, based on their public pricing and documentation.
Try everything free for 3 days, on every site. After that, free keeps the big platforms unlimited — Pro unlocks every site plus the cloud features.
The big platforms, with a free account
Every site + the cloud features
Monthly allowance: 1,500,000 characters of AI translation + 100,000 characters of neural speech — then the local engine takes over automatically. No-subtitle dubbing (beta): 60 min of Premium Audio.
Secure payment via Polar. VAT handled automatically. Cancel anytime, effective at the end of the period.
Pick your browser — one click to install, and updates arrive on their own.
One click from your browser's store — no developer mode, nothing to configure.
Open the popup and sign in — the free account unlocks dubbing. No card needed.
Open any subtitled video and press “Start dubbing” — Voxylio speaks it in your language.
Add to Chrome
Add to Edge
Firefox
Safari