Free Fact Checker

Chrome extension that fact-checks AI chats and web text using Google Search results.

freefactchecker.com

Verified API available

Quick facts
What is it	Chrome extension that fact-checks AI chats and web text using Google Search results.
Pricing	Unknown
Platform	Chrome Extension
API	Yes
Best for	verifying claims made by AI chatbots in real-time, checking the accuracy of statements on social media posts
Domain registered	2025

Data updated Aug. 1, 2026

What does Free Fact Checker do?

Free Fact Checker is a browser extension that lets you instantly verify information you encounter online. You highlight any text—whether it's from an AI chatbot like ChatGPT, a social media post, a news article, or even your own document—and the tool checks it against Google Search results. It doesn't give you an AI's opinion; it provides answers based on real web data, complete with citations so you can see the source. This makes it a practical tool for cutting through misinformation and AI-generated inaccuracies.

The tool works by sending your highlighted text to Google's Gemini API, which uses a process called 'grounding' to search the web for relevant, factual information. A key feature is its privacy-focused design: you supply your own free Gemini API key, so your queries go directly from your browser to Google. There's no middleman server, no tracking, and no login required. It's free to use, with Google's free tier allowing 20 verification requests per day.

This extension is most useful for students, researchers, journalists, or anyone who needs to quickly validate information without opening multiple tabs. It's ideal for fact-checking surprising claims from an AI assistant, verifying a statistic from a news article, or double-checking your own writing before you publish. While it requires a simple setup with an API key, the payoff is a fast, private, and reliable way to ground your online reading in verified facts.

Productivity Tools

Key features

What makes it stand out

Instantly fact-check text in AI chats like ChatGPT, Gemini, and Claude

Works on social media, news sites, PDFs, and Google Docs

Provides answers grounded in Google Search with citations

Completely free and requires no login or tracking

Uses your own Gemini API key for privacy and cost control

Who is Free Fact Checker for?

Who benefits most from this tool

verifying claims made by AI chatbots in real-time

checking the accuracy of statements on social media posts

ensuring factual correctness in your own writing or reports

Trust & presence

Domain Domain registered 2025

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