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Preview of SubText

SubText by SubText

Watch videos with dual-language subtitles. Get AI translations, hover over a word for a translation, click for deeper word/phrase breakdowns, and save vocabulary to review later. Works on YouTube, Netflix, Disney+, Prime Video, Hulu, Viki, and Udemy.

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Extension Metadata

Screenshots
Hover over a word for a quick translation.Click on a word or phrase for a detailed translation lookup.See words highlighted as they are spoken on videos that support it.Configure settings to your preference.Flashcards help you learn the words and phrases you've seen from your watched videos.See detailed flashcard descriptions with the ability to mark cards learned.Flashcard presentation is customizable and uniquely optimized for learning words, phrases, or expressions.Your Expression library stores the expressions (like idioms and slang) that you've saved from your watched videos.Your Lookup library stores the words and phrases that you've saved from your watched videos.
About this extension
Turn anything you watch into language practice.

SubText shows two subtitle lines at once — the original and a translation — so you can follow along and pick up a language naturally while watching the shows you already love.

What you get:
- Dual subtitles — original + translation, synced to playback.
- Three translation modes — context-aware AI translations, fast machine translation, or the site's own caption track.
- Hover a word for an instant meaning, without pausing.
- Click a word or phrase for a deeper breakdown: definition, part of speech, example sentences, and word forms.
- Expression highlights — idioms and set phrases are flagged so you notice them.
- Follow-along — words light up as they're spoken.
- Save to your library — keep words and phrases and review them later with flashcards, quizzes, and study sets on subtext.site.
- Make it yours — fonts, colors, sizing, position, keyboard shortcuts, and separate settings per site.

Supported sites: YouTube, Netflix, Disney+, Prime Video, Hulu, Viki, and Udemy.

Free to use: machine-translated dual subtitles, word hover, and lookups work without an account. A SubText subscription unlocks higher-quality AI translations and saving to your personal library.
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Permissions and data

Required permissions:

  • Access your data for sites in the svtplay.se domain
  • Access your data for sites in the svt.se domain
  • Access your data for sites in the youtube.com domain
  • Access your data for sites in the netflix.com domain
  • Access your data for sites in the disneyplus.com domain
  • Access your data for sites in the primevideo.com domain
  • Access your data for sites in the amazon.com domain
  • Access your data for sites in the amazon.co.uk domain
  • Access your data for sites in the amazon.de domain
  • Access your data for sites in the amazon.fr domain
  • Access your data for sites in the amazon.it domain
  • Access your data for sites in the amazon.es domain
  • Access your data for sites in the amazon.ca domain
  • Access your data for sites in the amazon.com.au domain
  • Access your data for sites in the amazon.co.jp domain
  • Access your data for sites in the amazon.in domain
  • Access your data for sites in the amazon.com.br domain
  • Access your data for sites in the amazon.com.mx domain
  • Access your data for sites in the amazon.se domain
  • Access your data for sites in the amazon.nl domain
  • Access your data for sites in the amazon.pl domain
  • Access your data for sites in the amazon.com.tr domain
  • Access your data for sites in the amazon.sg domain
  • Access your data for sites in the amazon.ae domain
  • Access your data for sites in the amazon.sa domain
  • Access your data for sites in the amazon.eg domain
  • Access your data for sites in the hulu.com domain
  • Access your data for sites in the udemy.com domain
  • Access your data for sites in the viki.com domain
  • Access your data for sites in the subtext.site domain
  • Access your data for youtube.com
  • Access your data for tv.nrk.no
  • Access your data for subtext.site

Optional permissions:

  • Access your data for all websites

Required data collection, according to the developer:

  • Website content
Learn more
More information
Add-on Links
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Version
1.0.0
Size
178.07 KB
Last updated
5 days ago (Jun 21, 2026)
Related Categories
  • Language Support
  • Photos, Music & Videos
License
All Rights Reserved
Privacy Policy
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Version History
  • See all versions
Tags
  • scholar
  • streaming
  • translate
  • youtube
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