SeenTube — Privacy Policy

Last updated: August 2026

SeenTube is a Chrome extension that tracks which YouTube videos you've watched, entirely on your own device. This page explains exactly what data the extension touches and what happens to it.

What SeenTube stores

For videos you watch on YouTube, SeenTube stores: the video ID, title, channel name, thumbnail URL, duration, how much of it you've watched, and timestamps of when you watched it. It also stores your extension settings (watched threshold, badge preferences).

Where it's stored

All of this is stored using chrome.storage.local — a storage area private to your browser profile on your own device. It is never transmitted anywhere.

What SeenTube does not do

• It does not send any data to a server. SeenTube has no backend.
• It does not use analytics, telemetry, or crash reporting of any kind.
• It does not require or support signing in — there is no account.
• It does not share, sell, or transmit your data to any third party, because it never leaves your device in the first place.
• It does not track your activity on any site other than youtube.com and m.youtube.com.

Permissions

SeenTube requests two things:

• Storage — to save your watch history and settings locally.
• Access to youtube.com and m.youtube.com — the only sites the extension runs on, needed to track playback and show badges/notifications.

Exporting or deleting your data

The extension's Settings page lets you export your entire history as a JSON file you control, or permanently delete all of it at any time. Uninstalling the extension also removes all locally stored data.

Changes to this policy

If this policy changes, the "Last updated" date above will change accordingly.

Contact

Questions about this policy can be directed to the developer via the contact information listed on the Chrome Web Store listing.