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Fact-check the web as you browse

Our powerful browser extension brings AI-powered fact-checking to every website you visit.

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Fact Sentinel Browser Extension in action

Introducing the Fact Sentinel Browser Extension

Seamlessly verify information on any webpage with just a few clicks

Instant Fact-Checking

Select any text on a webpage, right-click, and choose "Verify with Fact Sentinel" to instantly check facts.

Privacy First

Your API keys stay local. All verification happens through your own API accounts for complete privacy.

Multiple AI Engines

Leverages OpenAI, Anthropic Claude, and IBM Watson to provide comprehensive fact-checking from multiple sources.

Verification History

Keep track of all your fact-checks with a detailed history and organize your research.

Get the Fact Sentinel Extension Today

Available for Chrome, Firefox, Edge, and other Chromium-based browsers

Chrome Chrome Firefox Firefox Edge Edge

How It Works

Three simple steps to fact-check any content on the web

1

Select Text

Highlight any text on any webpage that you want to verify

Select text on webpage
→
2

Right-Click

Open the context menu and select "Verify with Fact Sentinel"

Right-click menu
→
3

Get Results

View comprehensive fact-checking results from multiple AI sources

Fact-checking results

Ready to Start Fact-Checking?

Download the extension now and join thousands of users who trust Fact Sentinel for accurate information

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