EnglishCC is live on Chrome Web Store.
Install EnglishCC from the official Chrome Web Store listing. After installation, open a regular YouTube video with English captions, turn on YouTube captions, and use the side panel to adjust caption and vocabulary settings.
Current supported browser target
- Chrome and Chromium-based browsers.
- Regular YouTube video pages.
- Videos with YouTube native captions available.
What to expect
EnglishCC adds a customizable caption layer, bilingual subtitles, local hover lookup with Chinese or English definitions, saved-word highlighting, and vocabulary review. Some listening controls appear only when caption timing is accurate enough.
Dictionary sources and licenses
Local dictionary: ECDICT · MIT.
Supplementary definitions/translations: FreeDictionaryAPI.com, sourced from Wiktionary contributors under CC BY-SA 4.0. EnglishCC extracts, trims and deduplicates supplied meanings; source-derived additions remain under the same license. Each supplementary word includes its original article attribution. No AI-generated definitions.