Last updated: July 29, 2026
DeepSRT is a Mac application (with an optional Chrome extension companion) that turns YouTube videos into AI summaries and transcripts. It is designed so that your activity stays on your Mac.
DeepSRT collects no data. Period.
When you request a summary or transcript, the app fetches the video's caption data directly from YouTube and sends the transcript text directly to Google's Gemini API using your own API key. Both connections go straight from your Mac to those services; nothing is routed through, cached on, or visible to any server operated by us. YouTube and Google handle those requests under their own privacy policies (YouTube Terms of Service, Google Privacy Policy).
The app can play videos using the official YouTube embedded player. When the player loads, YouTube collects and shares some basic data (such as the video being watched) as it would for any embedded player on the web, under Google's privacy policy. DeepSRT does not add tracking of its own and does not autoplay videos.
Your Gemini API key is stored in the macOS Keychain on your Mac, protected by the system. It is used solely to call Google's Gemini API and is never transmitted anywhere else. Removing the key in Settings deletes it from the Keychain.
The DeepSRT extension talks only to the DeepSRT app running on your own Mac (via 127.0.0.1). It stores your display preferences (language, theme) locally in your browser profile. It does not track browsing history, does not phone home, and sends nothing to any remote server.
The app stores its settings and session caches locally on your Mac, inside the app's sandbox container. Deleting the app removes them.
If this policy ever changes, the updated version will be posted at deepsrt.com/privacy with a new "last updated" date.
Questions about privacy? Email support@deepsrt.com.