According to AlphaMoat, as of 2026-06, the Chrome extension Free Fact Checker has 121 users (+26% MoM) — ranked #4,722 of 10,567 AI browser extensions, and #2,165 of 5,263 in Tools.
Select text on any web page or PDF and fact-check it instantly using Google Gemini with Search grounding
Select text on any web page, AI chat or PDF and fact-check it instantly using Google Gemini with Search grounding Fact Check Your AI Fact Check Your News Fact Check Your Work SAVE TONS OF TIME The Free Fact Checker is a Chrome extension that enables you to select any text on a webpage and instantly fact-check it using Google Search and Gemini. It's instant research at your fingertips! HOW IT WORKS ✅ Highlight Text — Select any statement on any webpage: news articles, social media, PDFs, AI chat, anywhere you can highlight text. Then use the right-click menu, keyboard shortcut or press the toolbar icon to trigger a fact check. ✅ Google Search Grounding — Your text is sent to Google Gemini, which finds real data about it using Google Search through a process called grounding. ✅ Get Cited Results — You get a fact-check with citations and sources. You will never get an AI's opinion — only answers grounded in Google Search. GREAT FOR ✅ Verifying that AI is telling you the truth ✅ Checking your own work to make sure that you have things right ✅ Validating the truth of things you read on social media and in the news ✅ Quickly diving deeper into specific topics ✅ Anyone doing research - students, business professionals, etc. FEATURES ✅ Works Everywhere — Websites, AI chat windows, PDFs, Google Docs & Google Slides — any page where you can highlight text. ✅ Grounded in Search — Results come from Google Search, not AI opinion. If no data can be found, it will tell you instead of making something up. ✅ 100% Free — The extension is free. Google lets you make 20 grounding requests per day with a free Gemini API Key. ✅ No Login Required — Use it immediately after installing and adding your API key. ✅ No Tracking — Your queries go directly from your browser to Google's API using your own key. There is no tracking or analytics. ✅ Check Your Writing — Highlight any text in your own writing and get instant fact-checks to ensure accuracy. ✅ Customize the Fact Check Prompt — Always want your results in Spanish? No problem, just add it to the prompt. ✅ Source Code Available — Download it, review it, install it, fork it, edit it. Learn more at https://www.freefactchecker.com From the team that brought you Ask Steve: https://www.asksteve.to
| Month | Users | MoM |
|---|---|---|
| 2026-04 | 86 | — |
| 2026-05 | 96 | +11.6% |
| 2026-06 | 121 | +26.0% |
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Data month: 2026-06 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.
