FactFrame - Fact-Check YouTube Captions

FactFrame — fact-check YouTube captions in real time using web search (Tavily, Exa, Perplexity, or Brave) and your LLM.

FactFrame Verify claims on YouTube in real time. FactFrame is a browser extension that brings live fact-checking to YouTube. While you watch, it monitors video captions, searches the web, and uses your preferred LLM to evaluate claims — all from a simple side panel. What FactFrame Does With captions enabled, FactFrame can: Track recent caption text in real time Search the web through your preferred provider Use an LLM to assess factual claims Show clear verdicts with supporting source links Features Live fact-checking as videos play Search provider choice: Tavily, Exa, Perplexity, or Brave LLM flexibility: OpenAI-compatible models or Anthropic Claude Deeper verification workflows with optional two-stage query generation Transcript-aware analysis for better context Privacy-first setup with local-only API key storage Setup Install FactFrame Open a YouTube video with captions enabled Open the FactFrame panel and configure your API keys Watch normally while FactFrame surfaces fact-checks automatically Privacy FactFrame is built with privacy in mind: API keys stay on your device in local browser storage Data is sent only to the providers you choose No tracking, analytics, or external backend Note FactFrame is designed to assist with fact-checking, not replace independent judgment. Always verify important information using trusted sources.