SeenTube

Seentube helps you keep track of the YouTube videos you’ve already watched. Once you watch a video, Seentube remembers it and shows a clear indicator when you come across the same video again, helping you avoid accidentally watching the same content twice. Simple, lightweight, and designed to stay out of your way. Key features: - Automatically tracks watched YouTube videos - Shows when a video has already been watched - Helps you avoid duplicate viewing - Works directly on YouTube - Simple and lightweight experience Perfect for anyone who watches a lot of YouTube and wants an easy way to remember what they’ve already seen.