Glucose for Browser

Your language.
Any video.

A browser extension that translates the captions of the videos you stream into your language, right on your device.

Coming soon to your browser Watch the video ↓

Footage: Tears of Steel, (CC) Blender Foundation | mango.blender.org, CC BY 3.0.

Nothing new to learn.

Watch the way you already do. The captions just arrive in your language.

  1. 01

    Play a video

    Turn on the site’s captions as usual.

  2. 02

    Read it in your language

    The captions appear translated in the same place, with the original line smaller underneath.

  3. 03

    Change it any time

    Pick another language from the extension’s icon, or press Alt+Shift+T to switch translation off.

Private, and made for reading.

Subtitles that read like subtitles, translated without leaving your device.

Translated on your device.

Captions are translated right in your browser. Nothing is sent to a server, and there is no account to make.

Whole sentences, not word by word.

A sentence split over several captions is translated in one piece, then shown back in time with the video.

The original, right underneath.

The translation takes the place of the captions, with the original line smaller below it. Turn that off whenever you like.

Alt+Shift+T.

One shortcut turns translation on and off, on any site.

Make it yours.

Choose the language, the caption size, how high they sit and how dark the background is.

A quiet credit.

When a video starts translating, a short line names the language, like a film’s subtitle credit. You can turn it off.

Works on the sites you already watch.

  • YouTube
  • Netflix
  • Prime Video
  • Disney+
  • Max
  • Hulu
  • Vimeo
  • Udemy

Also Yle Areena, JW Player, Video.js, and any player that uses the video’s own text tracks.

In the browser you already use.

  • Chrome
  • Edge
  • Brave
  • Arc
  • Dia
  • Comet
  • Opera
  • Vivaldi
  • Safari

Chrome 116 or newer and other Chromium browsers, plus Safari on macOS.

Frequently Asked Questions

Are my captions sent anywhere?
No. Translation runs on your own device, inside the browser. Nothing is sent to a server, and you don’t need an account.
Which languages can it translate?
Captions are translated into your browser’s language by default, and you can pick another from the extension’s icon. Finnish to English works straight away. Other language pairs need a one-time download, which the extension keeps on your device.
Which sites does it work on?
YouTube, Netflix, Prime Video, Disney+, Max, Hulu, Vimeo, Udemy, Yle Areena, and players built on JW Player, Video.js, Plyr, Shaka or Bitmovin. It also works with any player that uses the video’s own text tracks.
Which browsers are supported?
Chrome 116 or newer and other Chromium browsers, such as Edge, Brave, Opera and Vivaldi, plus Safari on macOS. Firefox isn’t supported yet.
What if it detects the wrong caption language?
Click the extension’s icon and set which language the captions are in.
Are there captions it can’t translate?
Captions burned into the picture, or drawn on a canvas (as on Crunchyroll), can’t be read. And when a site makes the video element itself fullscreen rather than its player, the browser doesn’t allow anything to be drawn over it.

Still have questions? Email us.

Your language. Any video.

Glucose for Browser is on its way to your browser.

Coming soon to your browser Brought to you by DoublOne Studios