YouTube Check

About

YouTube Check helps you avoid re-watching videos you've already rated on YouTube.

HOW IT WORKS
• Open any YouTube video and give it a Like or Dislike
• The extension saves your rating locally in your browser
• While browsing Home, Search, Channels, Playlists, Shorts, and more, rated videos show a "✓ Viewed" badge on thumbnails

FEATURES
✓ Automatic Like/Dislike detection
✓ Configurable badge or overlay on thumbnails
✓ Full YouTube Shorts support
✓ Floating page counter (viewed/total on the current listing)
✓ Watch page indicator ("You already rated this video")
✓ Popup with statistics and recent history
✓ Export and import your data (JSON)
✓ Settings synced across devices via Chrome Sync
✓ English and Portuguese interface

PRIVACY
• No data is sent to external servers
• Everything is stored locally in your browser
• You can clear your history at any time from the extension popup

Perfect for anyone who watches a lot of YouTube and wants to quickly see what they've already rated.