AI voice-over for any video in your browser
Watch any show or course in your language, even if nobody will ever translate it.
Vocnu listens to the video and voices it or subtitles it in your language, on any site with a player, even one with no subtitles at all. Names stay the same through the whole series.
The browser extension works in Chrome, Brave and Edge on a computer. 40 free credits when you sign up. No card needed.
People already watch with Vocnu on
- Nova Play
- Streamz
- Globoplay
- Bilibili
- Musora
- YouTube
The Vocnu extension in under a minute A film scene on YouTube in English, then with a Spanish voice-over and subtitles, and a look at the extension's languages, voices, prices and subtitle colours.
Film: Breakfast at the Bodega (2022), directed by Marina Elise Barham, written by Cameron Strittmatter & Marina Elise Barham, CC BY 3.0 Music: “One Cool Minute” by Loyalty Freak Music, CC0 1.0 AI voice-over and subtitles added by Vocnu.
Works where other translators don't
The Vocnu extension for Chrome, Brave and Edge voices the videos you watch in your browser and shows subtitles in your language: YouTube, online courses, any page with a video player.
No subtitles needed
Vocnu listens to the sound itself, so a video with no subtitles in any language works too. It also reads text shown on screen and works in protected streaming players and live streams.
In sync with the picture
Vocnu voices the video ahead of the picture. After a short wait at the start, the voice keeps up with what you see and follows pauses, seeking and speed changes.
Names stay the same all season
The first episode settles how each character and place is written in your language, and every later episode follows it. Anyone can suggest a fix in the names library.
Small languages done properly
Lithuanian, Slovak, Czech and Ukrainian get the same care as the big languages: names take the right ending in every grammatical case, in the voice and in the subtitles.
About the extensionAdd from the Chrome Web Store
For Chrome 120 or newer, Brave and Edge on a computer.
Shows nobody translates into your language
A few of the things people already watch with Vocnu.
A Bulgarian series in Lithuanian
Followed with Lithuanian subtitles that Vocnu writes as each episode plays.
Piano lessons in Turkish
An online piano course, followed lesson by lesson in Turkish.
A Brazilian telenovela in English
A Portuguese-language series from Brazil, followed in English.
Hear it on real scenes
Scenes from openly licensed films, voiced by Vocnu. Switch the language or the voice while a scene plays.
Breakfast at the Bodega (2022), directed by Marina Elise Barham, written by Cameron Strittmatter & Marina Elise Barham — CC BY 3.0 AI voice-over and subtitles added by Vocnu. License
Already voiced: start at once
Popular YouTube videos and TED talks Vocnu already voiced: no wait at the start, 0.2 credits a minute.
YouTubeLietuvių20:03
Do schools kill creativity? | Sir Ken Robinson | TED
3 creditsfor the 12 minutes ready
YouTubeEspañol12:14
Tears of Steel - Blender VFX Open Movie
2 creditsfor the 9 minutes ready
YouTubeLietuvių8:06
The Egg - A Short Story
2 creditsinstead of 16
How it works
Four steps, nothing to upload.
Add to Chrome
Install the Vocnu extension in Chrome, Brave or Edge on a computer and sign in, or create a free account.
Open any video
YouTube, a streaming or course site, a live stream: any page with a video player.
Pick your language and voice
Press the Vocnu button or Alt+Shift+V, then choose one of 38 languages and a voice, or subtitles only.
Watch
The video waits about half a minute at the start while the first part is voiced. Then the voice keeps up with the picture.
Hear your language
The spoken language is detected automatically. Translate it into any of these, with voice-over and subtitles in each.
Voice-over and subtitles in 38 languages.
EnglishWait. Can you hear that?
Palauk. Ar tu tai girdi?
Made for people who watch
Foreign series and dramas
Follow a series from another country episode by episode, with names that stay the same all season.
Anime
A voice reads the translation over the Japanese audio, so you can watch new episodes in your language.
Online courses and lessons
Lessons and lectures in a language you don't speak, voiced as you learn.
News and live streams
Live streams are voiced a few seconds behind the picture, so you follow the news as it happens.
Publishing your own videos? Vocnu for creators
Choose how it sounds
Premium for films and series, Standard for lectures and courses, Economy when you just want to follow along. You choose for each video.
Premium
DefaultOur most natural voices and finest translation.
2 credits a minuteof voice-over, or 0.2 credits when the browser extension replays a minute Vocnu already voiced
- Natural, expressive voices that carry the tone of each line
- Our finest translation, which subtitles use too unless you choose Economy
- Best for films, series, anime and anything you share
Hear a sample
Standard
Clear voices and good translation for fewer credits.
1 credit a minuteof voice-over, or 0.2 credits when the browser extension replays a minute Vocnu already voiced
- Two clear voices in each language, a female and a male one, with plainer delivery
- Good translation by smaller models, which now and then slip in meaning or grammar
- Good for lectures, courses, news and long videos you watch to follow along
Hear a sample
Economy
The lowest price. A plain synthetic voice reads a quick translation, good for following a video.
0.5 credits a minuteof voice-over or subtitles alone, or 0.2 credits when the browser extension replays a minute Vocnu already voiced
- Plain synthetic voices with a flat delivery, a female and a male one in each language, none yet in Croatian and Slovenian
- A quick translation by small models, which slip in meaning or grammar more often than Standard’s
- Good for talks, streams and videos you watch once, when the price matters most
Hear a sample
The same scene in each grade
A short German interview, voiced and subtitled once in each of the three grades.
„Was macht ein Roboterforscher?“ – ZDF/logo/Simone Klein – CC BY 4.0. Excerpt; not endorsed by ZDF or the interviewee. AI voice-over and subtitles added by Vocnu. License
The same in every grade
- Burned-in subtitles, re-encoded video and SDH subtitles at the same price
- Speech recognition, timing, the mix with the original sound and every file format
- The browser extension and watching again for free within 90 days; its live mode reads Premium or Standard
- Refunds when a job fails, packs and plans, and 40 free credits for new accounts
Subtitles on their own cost 1 credit a minute with Premium’s translation or 0.5 credits with Economy’s; those of a voice-over use its grade’s translation.
Your account remembers the grade you chose last, in the app and in the browser extension. Premium is the default.
Pay for the minutes you watch
Buy once or every month. Credits never expire. New accounts get 40 free credits.
Episode
€5
25 minof Premium voice-over
€0.20 a minute50 credits
Buy episodeLong episode
€10
1 hof Premium voice-over
€0.17 a minute120 credits
Buy long episodeMovie
€18
2 h 5 minof Premium voice-over
€0.14 a minute250 credits
Buy movieCreator
€39
4 h 35 minof Premium voice-over
€0.14 a minute550 credits
Buy creatorStudio
€99
12 h 30 minof Premium voice-over
€0.13 a minute1,500 credits
Buy studio
Viewer
€19/month
2 h 30 minof Premium voice-over
€0.13 a minute300 credits every month
Start viewerFan
€39/month
5 h 25 minof Premium voice-over
€0.12 a minute650 credits every month
Start fanStudio
€99/month
14 h 10 minof Premium voice-over
€0.12 a minute1,700 credits every month
Start studio
- Subtitles only1 credit a minute, 0.5 in Economy
- Burned-in or SDH subtitles+1 credit a minute, same in every grade
- Failed job?Its credits come back automatically
Minutes are rounded up for each video. Prices are in euros. EUR and GBP prices include VAT; USD prices add any VAT or sales tax at checkout. Orders are sold through Link (a Stripe company), our reseller.
Questions and answers
More answers, step by step, are in the guides.
Does it work on my site?
Most likely. Vocnu works in any video player in your browser: YouTube, streaming and course sites, plain video files, protected streaming players and live streams. It needs Chrome 120 or newer, Brave or Edge on a computer, and does not work on phones and tablets.
Does the video need subtitles?
No. Vocnu listens to the sound and translates what is said, so a video with no subtitles in any language works too. Where a site has subtitles, Vocnu uses them as well, and it reads text shown on screen.
How long until the voice starts?
About half a minute. Vocnu voices the video ahead of the picture, so at the start the video waits while the first part is voiced, then plays on while Vocnu prepares the next minutes. After a long jump it waits again. Live streams are voiced a few seconds behind the picture.
Which languages are supported?
Voice-over and subtitles in 38 languages, including English, Lithuanian, Spanish, German, French, Polish, Ukrainian, Japanese, Korean, Chinese, Cantonese, Arabic, Hebrew and Hindi. The spoken language of the video is detected automatically.
Does the original sound stay?
Yes. One voice reads the translation over the original sound, which is lowered but kept. Vocnu suggests a level for each video, and you can set your own or turn the original off. With subtitles only, the sound stays as it is.
How much does it cost?
Watching uses your Vocnu credits: 2 credits a minute with Premium voice-over, 1 credit with Standard and 0.5 credits with Economy, or 0.2 credits in every grade when Vocnu reuses a voice-over it already made of the same video in your language and voice, and with subtitles only 1 credit, or 0.5 credits in Economy. A video already in your language costs nothing, minutes you watch again within 90 days are free, and new accounts get 40 free credits.
What is the difference between Premium, Standard and Economy?
Premium, the default, reads your video with our most natural, expressive voices and our finest translation, for 2 credits a minute of voice-over. Standard reads it with clear voices, a female and a male one in each language, and a good translation by smaller models, which now and then slip in meaning or grammar, for 1 credit a minute. Economy, the lowest price, has a plain synthetic voice read a quick translation, good for following a video, for 0.5 credits a minute; it slips more often and does not read Croatian or Slovenian yet. Subtitles on their own cost 1 credit a minute with Premium’s translation or 0.5 credits with Economy’s; those of a voice-over use its grade’s translation, and the add-ons cost the same in every grade.
Which grade should I choose?
Premium for films, series, anime and anything you share, where the voice and every word matter. Standard for lectures, courses, news, talks and long videos you watch to follow what is said, when fewer credits matter more than the delivery. Economy when the lowest price matters most and following along is enough: a plain voice and a quick translation for a quarter of Premium’s credits. You choose for each video, and your account remembers your last choice in the app and the browser extension alike.
Does Vocnu see what I browse?
No. The extension does nothing in a tab until you turn it on there. Then it sends only what it needs for that video: its subtitles, short pieces of its sound or, to read text on screen, small pictures of it, the page title, the site's name and the page address, which your viewing history links back to. See the Privacy Policy.
Do I need a subscription?
No. Credit packs are one-time purchases. A monthly plan is optional: every month it adds credits, each cheaper than in any pack. Credits from both never expire, and you can cancel a plan any time on the Credits page; it ends with the month you paid for.
Can I get a refund?
Yes. You can get a full refund within 14 days of purchase. See the Refund Policy.
How do payments work?
Orders are sold through Link (a Stripe company), our reseller and Merchant of Record. It handles payment, invoices and taxes, and accepts cards, Apple Pay, Google Pay and several local payment methods. Your card statement shows LINK.COM* VOCNU.
Try it on the next episode you watch
Add Vocnu to Chrome, create a free account and get 40 free credits. No card needed.
Add to Chrome, it's freeCreate free accountThe browser extension works in Chrome, Brave and Edge on a computer.