AI Fact Checker

About

AI Fact Checker checks whether claims are true, in real time, using Claude with web search.

You bring your own API key, and everything runs in your browser.

Check facts anywhere:
• Highlight text on any page and verify it from the toolbar or right-click menu.
• Scan a whole article at once.
• Fact-check a video while it plays by reading the tab's audio.
• Upload a PDF, image, or text file to check the claims inside it.

Clear results:
• Each claim gets a true-to-false rating with a confidence score and sources.
• False claims include the correct fact, so you get the right answer right away.
• Ask follow-up questions about any result.

Extra tools:
• Sentiment analysis for comments, tweets, and reviews.
• AI-origin detection to check if an image or document was made by AI.

Privacy:
• Your API key and history stay in your browser. 
• Content you check goes straight to the AI providers you choose (Anthropic, and Deepgram for audio).
• It never goes to us.