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Free Fact Checker

1.0.0

7

0

Fact Checking
Instantly verify any AI chat or text online.
Input:
Output:
Free Fact Checker screenshot
Updated: May 1, 2026 Free

Description

Fact Check Your AI
Fact Check Your News

AI models can be inaccurate, and so can information online. The Free Fact Checker is a browser extension that allows you to instantly verify ChatGPT, Gemini, Claude, social media posts, and your news using Google Search.

HOW IT WORKS
1 Highlight Text
Select text in an AI chat or on a web page, then use the right-click menu, keyboard shortcut, or click the toolbar icon to initiate a fact check.

2 Google Search Grounding
Your selected text is sent to Google's AI, which finds relevant data about it using Google Search. This process is known as grounding.

3 Get Cited Results
You receive a fact-check report complete with citations and sources. You will not receive an AI's opinion; instead, you get answers grounded in Google Search data.

GET STARTED
1 Install the Extension
Add the Free Fact Checker from the Chrome Web Store. It functions in Chrome, Edge, Brave, Vivaldi, Arc, Opera, and any Chromium-based browser. The source code is also available for download and installation from GitHub.

2 Obtain a Free Gemini API Key
Get your free API key from Google AI Studio. This process takes approximately one minute.

3 Add Your Key
Open the extension settings and paste your API key. It will be verified automatically.

4 Begin Fact Checking
Highlight any statement in an AI chat or on any webpage and use the right-click menu, keyboard shortcut, or click the toolbar icon to trigger a fact check. It's that simple.

Key Features

Works Universally: Accessible across platforms like ChatGPT, Gemini, Claude, Facebook, X, Instagram, Bluesky, Reddit, PDFs, Google Docs & Slides, and News Sites – anywhere text can be selected.

Grounded in Search: Results are derived from Google Search, not AI conjecture. If no supporting data is found, this will be clearly stated.

Completely Free: The extension is available at no cost. Google permits 20 grounding requests daily with a free Gemini API key.

No Login Needed: The extension functions immediately after installation and API key setup, without requiring user login.

No Tracking: Your queries are processed directly from your browser to Google's Gemini API using your own key. No user tracking or analytics are employed.

Pricing Plans

Model
free
Packages
1 Package
Price Start From
free
Payment Model
Not specified

Releases

First release of Free Fact Checker.

Reviews

Pros & Cons

Pros

Browser extension

Utilizes Google Search

Integrates Gemini API

Cons

Desktop-only functionality

Requires a Gemini API Key

Daily limit of 20 checks

Q&A

New Released

New Released