YouTube Turtle ("the Extension") is a Chrome browser extension that helps users learn English from YouTube through bilingual subtitles, quiz mode, and voice shadowing. This policy explains exactly what data the Extension touches.
| Data | Where it stays | Purpose |
|---|---|---|
| Your extension settings (enabled/disabled, language, mode) | chrome.storage.sync (your Google account) | Restore your preferences across devices |
| YouTube subtitles for the video you are watching | In-memory only | Compare against what you type/say and score you |
| Text you type into the practice input | In-memory only | Compare against the subtitle to compute a score |
| Your recorded voice (shadowing mode) | In-memory only (Blob URL) | Play back for self-comparison; never uploaded |
| Speech-to-text transcript (shadowing mode) | Processed by Chrome's built-in Speech API | Convert speech to text for scoring; handled by the browser |
| Subtitle text sent for translation | Sent to translate.googleapis.com | Fetch bilingual translation; no user identifiers attached |
| The word you click for a definition | Sent only to dictionary.cambridge.org via a new tab | Open the dictionary page you requested |
The Extension never sends your typed text, voice recordings, viewing history, or any identifier to any server controlled by the author.
storage — save your toggle, language, and mode settings.activeTab — read the current YouTube video URL so the overlay knows which video is playing.tabs — open a new tab to the Cambridge Dictionary when you click a word.https://www.youtube.com/* — inject the overlay onto YouTube watch pages.https://translate.googleapis.com/* — fetch bilingual translations. Only subtitle text is sent; no cookies or user IDs.translate.googleapis.com) — subtitle text is sent to fetch bilingual translations. No user identifiers or cookies are sent. Google's privacy policy applies.webkitSpeechRecognition) — in shadowing mode, your voice is processed by Chrome's built-in speech-to-text service (runs through Google's servers). No data is stored by the extension.dictionary.cambridge.org) — opened in a new tab only when you click a word. Their privacy policy applies to that page.buymeacoffee.com/MRWeekend) — opened in a new tab only if you click the donation button. Their privacy policy applies there.The Extension does not knowingly collect any data from anyone, including children under 13.
If this policy changes, the new version will be published in the public GitHub repository before any update is released on the Chrome Web Store.
Questions? Open an issue at the GitHub repository or contact the author via buymeacoffee.com/MRWeekend.