Paste a YouTube link into ChatGPT and it never sees the screen, only the captions at best. FrameCap fixes that. One click captures the timestamped transcript plus sharp frames of the screen (every 1–15 seconds, up to 4K) and opens ChatGPT, Claude, Gemini or Perplexity with a PDF and a ready prompt. AI Agents mode downloads a ZIP for Claude Code, Codex and Cursor. Runs fully in your browser: no account, no servers, no tracking. Free.