Translate YouTube in Your Browser, Both Ways

Why generic translators break on YouTube

YouTube auto-translated captions replace the original, so you lose the source phrasing that you are actually trying to learn. A page translator does nothing for the video track itself, and pausing to copy a caption into a separate tab breaks the flow of watching. Immersive learning needs both languages on screen together.

Built for YouTube, not bolted on

Swiftin ships bespoke YouTube support: bilingual subtitles on the player showing the original and your language together, plus inline translation of comments and descriptions, so the whole page becomes a study surface.

Bilingual subtitles on YouTube

See the original subtitle and its translation on screen at the same time. You read the native phrasing and the meaning together, which is how immersion actually builds vocabulary, instead of replacing the source with a translation you cannot learn from.

Immersive bilingual reading

Comments and descriptions translate in place, side-by-side or replacing the original, so the discussion under a native-language video is part of the lesson too, not a wall of text you skip.

Bilingual reading keeps the original and the translation together, so you learn the phrasing in context instead of only reading a translation. It works across the page in 100+ languages, alongside selection translation and AI text-to-speech for pronunciation.

Setup

1. Install Swiftin from the Chrome Web Store
2. Sign in (free, no card required)
3. Open youtube.com and use the site as usual
4. Turn on bilingual subtitles and bilingual reading from the Swiftin launcher
5. Watch and read with the original and your language on screen together

FAQ