WordTube

See when every word is spoken in a YouTube video — searchable timeline and horizon chart, right under the player.

WordTube transforms every YouTube video into a searchable, explorable knowledge base — powered by AI, right inside your browser. What WordTube Does WordTube analyzes every word spoken in a YouTube video and displays a rich panel of AI-powered insights directly below the video player. No sign-up required, no configuration needed — it activates automatically the moment you open a YouTube video. Features 🔍 Search Any Word — Type any word or phrase to instantly see every mention with precise timestamps. Click any result to jump straight to that moment in the video. 🎨 AI Theme Heatmaps — Visualize which topics are discussed and how intensely throughout the entire video timeline. Brighter bands mean more intense discussion of a topic. ⚡ Click-to-Jump Timestamps — Every timestamp in the analysis panel is clickable, taking you directly to that point in the video. 💡 Key Takeaways & Tips — AI extracts the most important insights and practical tips from the video, each paired with a timestamp so you can verify and explore further. 📊 Word Frequency Analysis — See how many total words were spoken, how many are unique, and explore frequency patterns to quickly understand a video's content. ⚙️ Instant Processing — WordTube processes videos in real-time as you watch. Analysis appears automatically — no waiting, no extra steps. Who It's For WordTube is perfect for students, researchers, content creators, and anyone who wants to get more out of YouTube — whether you're reviewing a lecture, exploring a tutorial, or trying to find that one moment in a long video. How to Get Started Add WordTube to Chrome (one click, completely free) Open any YouTube video as you normally would Explore the AI analysis panel that appears automatically below the player Stop skimming. Start finding. WordTube works on all YouTube videos — free forever, no account required.