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01Local Storage
Privacy
Local Storage
Settings, keys and usage counters stay in the browser's local storage.
Privacy
Subify Privacy: Data, API Keys & Providers
This technical guide explains what stays in the browser, what goes to a Provider or to Subify's servers, and how API keys are handled.
Chrome
FirefoxChrome & Firefox02
02API Key
Privacy
API Key
Provider keys are stored only in the extension's local settings and used only for direct requests to that service.
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03External Request
Privacy
External Request
Text and audio needed for a feature go only to the selected Provider. Word meanings come from api.dictionaryapi.dev, and only the word is sent. The translation cache of each video is also sent to Subify's servers. Signed-in members also sync vocabulary cards and send support tickets (see the FAQ).
04
SUBIFY
Free AI and inviting friends
If you are signed in to Subify and have not saved your own AI key, subtitle translation and the chat, writing and practice features are answered with the Subify owner's key on our server.
- •Translated text is not stored on the server; the server only keeps usage counters
- •The ID of the video you translate is recorded to count your monthly free sources
- •Your invite code and who invited whom are recorded so the reward can be given
- •Dubbing and shadowing still work only with your own Gemini key
SUBIFY
Sign-in and account activity
These rules apply only to signed-in accounts.
- •Sign-in methods: a username and password (an e-mail is optional), or Google, GitHub or LinkedIn
- •E-mail sign-in stores the address and name; LinkedIn sign-in sends the LinkedIn ID, name, e-mail and profile picture URL to the server
- •The admin panel shows monthly activity counts and the last 100 actions (time, kind of work, file or video name) for up to 180 days. Subtitle text, translations, chats and practice content are not stored there.
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04Data Deletion
Privacy
Data Deletion
In Advanced Settings you can delete all local extension data. This cannot be undone. It does not delete data already stored on Subify's servers.
RELATED PRIVACY PAGES
Related Guides
See these pages for a fuller understanding of Subify's data and security policies.
FAQ
Key Answers About Privacy
We collected the common questions for this section so you can find answers without jumping between pages.
No. API keys and dubbing audio are not sent to Subify. But after each translation, the translated lines of that video (video ID, original text, translation and timing) are sent to the translation cache on sub-ify.site. When you are signed in, your name and email, vocabulary cards, support tickets and account activity list are also stored on sub-ify.site.
In the extension's storage, inside this browser. It is used only in requests sent directly to that Provider.
It performs translation, speech or audio processing for the workflow you chose.
Yes. Each third-party service has its own terms and data policy.
Yes. In Advanced Settings, press "Delete all data". This removes the data stored in this browser. It does not remove data on sub-ify.site, and it cannot be undone.
No. This is a technical supplement to the main privacy page, written for the current version.
Subify
A video in another language can still be watched
Install Subify and enable translation, captions, or dubbing alongside your viewing experience.