How to Choose a Real-Time Video Dubbing Chrome Extension
Compare the main ways to hear online videos in your language and test an extension before trusting it for courses, streams or long tutorials.
Read the guideWatch any video in your language
- Free on the big platforms
- Local-first
- No credit card
- 70+ languages
Works on videos whose player exposes a subtitle track — most course platforms do.
Built like a real dubbing studio
Not a robotic caption reader. Voxylio reconstructs sentences, keeps one consistent voice, and adapts its pace to the speaker.
Full-sentence dubbing
Caption fragments are merged into complete sentences before translation, so the voice flows naturally and translations keep their context.
We’re gonna be doing thisby using a playground.Nous allons faire cela en utilisant un playground.
Local translation
Uses Chrome's built-in on-device translation API first — free, private and offline-friendly — with an online fallback when unavailable.
Always in sync
Speech follows the video clock: pause, seek or replay and the voice follows instantly. Gentle rate adaptation keeps long sentences intelligible.
One consistent voice
A single voice is picked per session for coherence. Choose any installed system voice, including premium natural voices on macOS.
Floating controls
A draggable on-page controller lets you toggle dubbing, switch language, adjust speed and duck the original audio without leaving the video.
65+ languages
Dub any subtitled video into 65+ languages — French, Spanish, Japanese, Arabic, Hindi and more. Switching languages mid-video is instant and never mixes voices.
FRESITDEPT
How it works
Once the extension is installed, everything happens on its own:
- 1
Detects the video
The extension finds the video player on the page — even inside shadow DOM players like Mux — and reads its English subtitle track.
- 2
Translates ahead
Upcoming sentences are translated ahead of playback with Chrome's local translation model, cached per language.
- 3
Speaks over the video
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 →
Voxylio
✓ 1 video detected✓ 42 lines readyTranslation: Chrome (local)
×1.10
12 %
Play the video, then flip the switch: the voice follows the subtitles in the chosen language. At 0%, only the dub is audible.
0+ languages, in both directions
The source language is auto-detected — dub from any language into yours.
- en
English
English
- zh
中文
Chinese
- hi
हिन्दी
Hindi
- es
Español
Spanish
- fr
Français
French
- ar
العربية
Arabic
- bn
বাংলা
Bengali
- pt
Português
Portuguese
- ru
Русский
Russian
- ur
اردو
Urdu
- id
Bahasa Indonesia
Indonesian
- de
Deutsch
German
- ja
日本語
Japanese
- ko
한국어
Korean
- vi
Tiếng Việt
Vietnamese
- tr
Türkçe
Turkish
- it
Italiano
Italian
- fa
فارسی
Persian
- pl
Polski
Polish
- uk
Українська
Ukrainian
- nl
Nederlands
Dutch
- th
ไทย
Thai
- sv
Svenska
Swedish
- ro
Română
Romanian
- el
Ελληνικά
Greek
- cs
Čeština
Czech
- he
עברית
Hebrew
- hu
Magyar
Hungarian
- da
Dansk
Danish
- fi
Suomi
Finnish
Voxylio Blog
Latest articles
How to Translate English Videos into Spanish with Voice in Chrome
A practical guide to choosing the best Spanish audio option, starting Voxylio, selecting a voice, and fixing the most common caption and synchronization problems.
Read the guideHow to Translate and Dub Online Videos in Real Time
Learn the fastest ways to understand a video in another language, what real-time dubbing requires, and when a browser extension is the right tool.
Read the guideWhy subtitle-based dubbing wins
Other tools capture your tab's audio, run speech recognition in the cloud, and bill by the hour. Voxylio reads the official subtitles instead.
Voxylio
Audio-capture tools
Price
Free on the big platforms — one fixed price for everything else
$19–129/month, hour quotas
Accuracy
Official subtitle text, word-perfect
Approximate speech recognition
Privacy
Local by default — your audio is never captured
Your audio is streamed to their servers
Synchronization
Locked to the video clock, seek-proof
Fixed delay behind the audio
Coverage
Subtitle tracks + on-screen captions (YouTube, Netflix…)
Any audio, even without subtitles
Comparison with audio-capture dubbing extensions, based on their public pricing and documentation.
Simple, honest pricing
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.
Free
The big platforms, with a free account
$0forever
Install the extension- 3-day full trial — every site unlocked, no card
- Unlimited on-device dubbing on YouTube, Netflix, Prime Video, Disney+ and Twitch
- 65+ dubbing languages, source auto-detected
- Translated subtitles right on the video
- What you watch never leaves your device
- Source-available (FSL) — every release becomes MIT after 2 years
Pro
Every site + the cloud features
$5.83/monthbilled at $69.99/year
Go Pro- Every site the engine supports — course platforms included
- Context-aware AI translation (beta), more faithful — generous monthly allowance
- Natural neural voices in 7 languages — local voice takes over elsewhere
- Early access to new languages and platforms
- Priority support
- One account across all your browsers
- No-subtitle dubbing (beta): live transcription + dubbing when a video has no captions at all — 60 min/month
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.
Install in two minutes
Pick your browser — one click to install, and updates arrive on their own.
01
Add it to your browser
One click from your browser's store — no developer mode, nothing to configure.
02
Sign in with Google
Open the popup and sign in — the free account unlocks dubbing. No card needed.
03
Play a video
Open any subtitled video and press “Start dubbing” — Voxylio speaks it in your language.