Learn a language on YouTube and Twitch with dual subtitles
Immersion works best with content made for native speakers, but without help it is easy to get lost. Dual subtitles show the original line and the translation together, so you can follow the story and still notice how things are said. Echo Captions does this on YouTube videos and, unusually, on live streams too.
Turn on dual subtitles
- 01
Install Echo Captions
From the Chrome Web Store.
- 02
Set your own language as the target
In the popup, pick the language you understand well. The video’s language is the one you are learning.
- 03
Keep “Show original line” on
The original appears above the translation. Turn it off any time for translation only.
- 04
Open a video or stream
YouTube videos start automatically; on live streams click the Echo button in the player.
How to use them for learning
- —Read the original first and glance at the translation only when you are lost.
- —On YouTube videos, open the transcript inside the player to replay a line: click it to jump back.
- —Search that transcript for a word you just heard to see it in context.
- —Live streams are good listening practice: casual speech, real reactions, no script.
- —Adjust font, size and position so the two lines don’t cover the action.
What it is and isn’t
Echo is a translation tool first: it does not have flashcards, a dictionary pop-up or saved word lists. If you want a dedicated study tool for Netflix and YouTube, learning extensions such as Language Reactor are built for that. Echo’s strength is that it works on live streams and on Twitch and Kick, and that the translation reads naturally.
Free minutes and plans
Free to start: about 4 minutes of video a day as a guest, about 8 minutes with a free account. Echo Lite is $1.99 a month for about 1 hour of video a day.
Updated 2026-11-01 · All guides