Context-aware AI translation
Captions are merged into full sentences before translation, so the AI sees complete thoughts instead of broken caption fragments. Translations are validated and retried automatically when quality checks fail.
Watch YouTube in your language, not theirs
EarDub turns any captioned YouTube video into natural AI voice dubbing. Pick a voice, press play, and just listen.
EarDub is a free Chrome extension that dubs YouTube videos into your native language. It extracts the video's captions, translates them with AI, generates speech with natural neural voices, and plays the dub in sync with the original video.
- 6
- Dubbing languages
- 28+
- Natural AI voices
- 5 / day
- Free dubbed videos
- 180 min
- Max video length
Built for YouTube. More platforms on the way
EarDub works on YouTube today and runs nowhere else, so it never touches your other tabs. Live streams, local video files, and more sites are on the roadmap.
YouTubeLive streamsLocal video filesMore platforms
How EarDub works
From a foreign-language video to native listening in three steps. No file uploads, no editing tools, no waiting around.
Open any captioned YouTube video
EarDub works with manual or auto-generated captions, so it covers most popular videos, including ones YouTube's own dubbing skips.
Click the dubbing button in the player
A EarDub button sits in the YouTube control bar. One click extracts the captions, translates them with AI, and generates speech.
Listen in your language
The dub plays in sync with the video. Adjust voice, dubbing volume, and original-audio volume anytime from the extension popup.
Everything you need to stop reading and start listening
Subtitle translators make you read. EarDub reads to you, and keeps every sentence intact.
28+ neural voices
Pick the voice that fits the video: calm narration, bright and energetic, male or female, across 6 languages and regional accents.
晓晓Jenny七海선희雲健Andrew
Word-level sync that never cuts a sentence
Dubbing follows the video's word-level timestamps. Every sentence plays to the end, and speech speeds up gently (up to 1.45x) when needed to catch up. Seek anywhere and the dub realigns.
Mix original and dubbed audio
Independent volume sliders for the original soundtrack and the dub. Keep the speaker's voice quietly underneath, or mute it entirely.
Bilingual subtitles, your way
Show translated subtitles while you listen, resize them from 14 to 28 px, or hide them completely. Reading is optional, not required.
You decide, always
Dubbing starts only when you click the button, and the extension runs only on youtube.com. No surprise audio swaps, no background activity on other sites.
EarDub vs. YouTube auto-dubbing vs. subtitle extensions
Three ways to understand a foreign-language video, compared honestly.
| Capability | EarDub | YouTube auto-dubbing | Subtitle translators |
|---|---|---|---|
| Choose from multiple AI voices | 28+ voices | ||
| Works on any captioned video | All captioned videos | Only creator-enabled videos | |
| Viewer decides when dubbing is on | On by default | ||
| Listen instead of reading | |||
| Mix original and dubbed volume | |||
| Bilingual subtitles while dubbing |
Comparison reflects publicly documented behavior of YouTube auto-dubbing and typical subtitle translation extensions as of June 2026.
6 dubbing languages, 28+ voices
Every language ships with multiple male and female neural voices, so the dub can match the tone of the video.
Mandarin Chinese
10 voices · 晓晓 · 云扬
Cantonese
3 voices · 曉曼 · 雲松
Taiwanese Mandarin
3 voices · 曉雨 · 雲哲
Japanese
4 voices · Nanami · Keita
Korean
4 voices · SunHi · InJoon
English (US)
6 voices · Jenny · Andrew
Source videos: any language with captions. Auto-detection works best with English, Japanese, Korean, and Spanish.
What early users say
“I follow three Japanese hardware channels and understood maybe half of each video. Now I just listen in English while taking notes. The sentences actually finish, which the robotic tools never got right.”
“The voice mixing is the killer feature. I keep the original creator at 20 percent volume so I can still hear their energy, with the English dub on top.”
“My mom watches cooking videos from Korea every week. I installed EarDub on her laptop and she has not asked me to translate a single video since.”
Frequently asked questions
What is EarDub?
EarDub is a free Chrome extension that dubs YouTube videos into your native language. It extracts the video's captions, translates them with AI, generates natural-sounding speech, and plays it in sync with the video. You can dub into Mandarin, Cantonese, Taiwanese Mandarin, Japanese, Korean, or English with 28+ voices.
What does the free plan include?
The free plan includes 5 dubbed videos per day, with each video up to 180 minutes long. All voices, bilingual subtitles, and audio mixing are included. The quota resets daily. When today's quota is used up, the dubbing button tells you so instead of failing silently, and dubbing works again the next day.
Why can't this video be dubbed? It says no captions
EarDub builds the dub from the video's captions, so a video with no captions at all cannot be dubbed yet. Most popular videos have at least auto-generated captions, which work fine. If the CC button is missing entirely, the creator disabled captions and YouTube generated none. Speech-recognition support for caption-less videos is planned.
How natural do the AI voices sound?
EarDub uses neural text-to-speech voices, the same class of voices used by professional narration tools, not the robotic system voices older extensions rely on. Each language offers multiple voices with different tones. If a voice does not fit the video, switch to another one in the extension popup; the change applies to the next sentences immediately.
Which languages can EarDub dub into?
EarDub dubs into 6 languages: Mandarin Chinese (10 voices), Cantonese (3), Taiwanese Mandarin (3), Japanese (4), Korean (4), and US English (6). Source videos can be in any language that has captions; automatic language detection works best with English, Japanese, Korean, and Spanish videos.
The whole internet speaks your language now
Install EarDub free and dub your first 5 videos today. No account, no credit card.