Quick answer
2Subs is a dual subtitles Chrome extension for language learners. It keeps the original subtitle line visible, adds a translated line, and gives you controls for pronunciation, read-aloud and subtitle styling while you watch supported desktop streaming sites.
Show two subtitle lines at once
Keep the original caption line visible and add a translated line underneath it. The overlay follows the video while you play, pause or scrub, so the translation stays tied to the moment you heard it.
Translate captions without leaving the video
Use stream captions as the source line, then choose the target language you want to read. 2Subs is built for common language-learning pairs like English-Spanish, English-Korean, Japanese-English and French-English.
| Feature | Why it matters | Best for |
|---|---|---|
| Dual subtitle overlay | Shows original and translated subtitles at the same time. | Netflix shows, YouTube videos, anime and K-dramas. |
| AI subtitle translation | Turns available captions into a support line in your chosen language. | Learning from content that only has one subtitle language. |
| Pronunciation guides | Gives a quick reading aid when a phrase is hard to say. | Japanese, Korean, French, Spanish and English practice. |
| Read-aloud | Lets you hear a subtitle line again without opening another tool. | Shadowing, listening drills and phrase review. |
| Style presets | Makes subtitles readable for long watching sessions. | Large monitors, dark scenes and fast dialogue. |
Make subtitles readable
Change font size, position, weight, background opacity and theme. Presets like Cinema, Large, Contrast and Minimal help you make subtitles comfortable for long watching sessions.
Add learning support when you need it
Pronunciation guides and read-aloud controls help when a phrase is hard to hear or a new word needs a second pass. These tools are designed to support watching, not interrupt it.
Supported streaming workflow
2Subs works best when the video site exposes subtitle data that the extension can read. Turn captions on in the player first, open the 2Subs popup, choose your subtitle pair, then tune the overlay before you settle into the episode.
Feature FAQ
Can I use 2Subs for Netflix and YouTube?
Yes. 2Subs is built for Netflix dual subtitles and YouTube subtitle translation, plus other supported streaming sites such as Crunchyroll, Disney+, Prime Video and more when usable subtitle data is available.
Can I use it on mobile apps?
Not yet. 2Subs is a desktop browser extension, so it runs in supported Chromium-based browsers rather than inside the Netflix or YouTube mobile apps.
Try the dual subtitle overlay.
Install 2Subs and watch your next Netflix, YouTube, anime or K-drama session with bilingual subtitles.
Add to Chrome