Kairos - Your AI Video Note-Taking Companion

Watch with AI. You choose what matters; Kairos helps you take notes from frames and subtitles on YouTube & Bilibili.

💭 Your attention comes first. Your ideas remain yours. A good thought shouldn’t be interrupted by switching apps, pasting screenshots or tidying up text. Kairos keeps your notes where inspiration happens, with AI quietly helping while you lead the thinking. 🫧 Stay in flow. Capture a thought without leaving the video. 🧠 Build on your thinking. AI uses the frame and context to organize notes while preserving your original words. ⏱️ Connect the moments. A timeline links your insights to their source, so revisiting doesn’t mean guessing where to scrub. 🔐 Keep ownership. Notes stay on your device, with AI available when you choose. Watch more efficiently. Understand more deeply. Learn more actively. ✨ From a fleeting thought to a lasting note ✍️ Catch the thought. Type a few words or drag to capture part of the frame. Save your note and get straight back to watching. 🪄 Let AI lend a hand. Optional AI refinement turns rough keywords into clearer notes using the frame and available captions. Your original words stay alongside the result in the dashboard. ⏱️ Return to the moment. Glowing timeline markers take you back to each note. Notes reappear during playback; hover to keep reading. 🫧 Keep the video in view. A movable glass island fades into the background when you leave it. Expand it when you need more room. 📚 Make your notes useful. Browse vertical or zigzag timelines, create AI summaries, export Markdown, or turn selected notes into a webpage you can download as HTML.