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.
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.
Afrikaans
Afrikaans
አማርኛ
Amharic
العربية
Arabic
Azərbaycan
Azerbaijani
Беларуская
Belarusian
Български
Bulgarian
বাংলা
Bengali
Bosanski
Bosnian
Català
Catalan
Čeština
Czech
Cymraeg
Welsh
Dansk
Danish
Deutsch
German
Ελληνικά
Greek
English
English
Español
Spanish
Eesti
Estonian
Euskara
Basque
فارسی
Persian
Suomi
Finnish
Français
French
Galego
Galician
ગુજરાતી
Gujarati
עברית
Hebrew
हिन्दी
Hindi
Hrvatski
Croatian
Magyar
Hungarian
Հայերեն
Armenian
Bahasa Indonesia
Indonesian
Íslenska
Icelandic
Italiano
Italian
日本語
Japanese
ქართული
Georgian
Қазақша
Kazakh
ខ្មែរ
Khmer
ಕನ್ನಡ
Kannada
한국어
Korean
ລາວ
Lao
Lietuvių
Lithuanian
Latviešu
Latvian
Македонски
Macedonian
മലയാളം
Malayalam
Монгол
Mongolian
मराठी
Marathi
Bahasa Melayu
Malay
မြန်မာ
Burmese
नेपाली
Nepali
Nederlands
Dutch
Norsk
Norwegian
ਪੰਜਾਬੀ
Punjabi
Polski
Polish
Português
Portuguese
Română
Romanian
Русский
Russian
සිංහල
Sinhala
Slovenčina
Slovak
Slovenščina
Slovenian
Shqip
Albanian
Српски
Serbian
Svenska
Swedish
Kiswahili
Swahili
தமிழ்
Tamil
తెలుగు
Telugu
ไทย
Thai
Tagalog
Tagalog
Türkçe
Turkish
Українська
Ukrainian
اردو
Urdu
Oʻzbekcha
Uzbek
Tiếng Việt
Vietnamese
中文
Chinese
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.
Everything that runs on your device is free, forever — one Google sign-in and you're dubbing. Pro funds the features that need a server.
For everyone, with a free account
The features that need a server
Secure payment via Polar. VAT handled automatically. Cancel anytime, effective at the end of the period.
Voxylio is not on the Chrome Web Store yet — install it as an unpacked extension.
Clone the repository or download it as a ZIP, then keep the extension folder somewhere permanent.
Open chrome://extensions, enable Developer mode, click “Load unpacked” and select the extension folder.
Open any subtitled video, sign in with Google from the popup, then flip the switch.
Coming soon to the Chrome Web Store