Privacy Policy
Last updated: June 28, 2026
Sublens ("the extension") is a Chrome extension that blurs subtitles on Netflix and YouTube and lets you translate, define and hear the words in them. This policy explains exactly what the extension does and does not do with your data.
Data we collect
None. Sublens does not collect, store, transmit or sell any personal information. There is no analytics, no tracking, no advertising, and no account or sign-in.
What is sent to third parties
To translate and pronounce words, the extension sends data to Google Translate only when you actively trigger a lookup:
- The word or phrase you click or select in a subtitle is sent to Google Translate to return its translation and dictionary entry.
- That same text is sent to Google Translate's text-to-speech endpoint to return the pronunciation audio.
Only the text you choose to look up is sent. No full subtitles, browsing history, or identifying information is transmitted. These requests are handled by Google under Google's Privacy Policy.
Settings storage
Your preferences (such as the chosen languages and the on/off toggles)
are stored using Chrome's built-in storage API. If you are
signed in to Chrome, this may sync across your own devices through your
Google account. These settings never leave Google's storage and are not
shared with us or anyone else.
Permissions
- storage - to save your settings.
-
scripting and host access to
netflix.comandyoutube.com- to read the on-screen subtitles and control the player so the extension can work. -
host access to
translate.googleapis.comandtranslate.google.com- to fetch translations and pronunciation audio.
Children's privacy
Sublens is a general-audience tool and does not knowingly collect any data from anyone, including children.
Changes to this policy
If this policy changes, the updated version will be posted on this page with a new "Last updated" date.
Contact
Questions about this policy? Use the feedback button in the bottom-right corner or reach out via LinkedIn.