CheckMate: AI-Powered Fact Checker

Instantly fact-check any content with a right-click. Powered by AI & verified sources, stay informed & confident.

As of May 2026, CheckMate: AI-Powered Fact Checker has 19 users in the News & Weather category.

Usersup 46.2 percent+46.2%
19
19
Ratingno change0%
— reviews
Reviewsno change0%
Version
0.2.0
Manifest V3

History

2 snapshots

Tracking since Apr 24, 2026.

19.481612.52Apr 24, 2026May 19, 2026
View as table
DateUsersRatingReviewsVersion
Apr 24, 2026130.2.0
May 19, 2026140.2.0
Now190.2.0

Permissions & access

Permissions
storagecontextMenusactiveTabscripting
Host access
None declared

Screenshots

CheckMate: AI-Powered Fact Checker screenshot 1CheckMate: AI-Powered Fact Checker screenshot 2CheckMate: AI-Powered Fact Checker screenshot 3CheckMate: AI-Powered Fact Checker screenshot 4

About

Many users have difficulty verifying online claims. They often spend significant time checking news and social media. They are not always sure which information is accurate. CheckMate provides a straightforward method to verify text directly from your browser.

How CheckMate Works
-----------------------------------------------------------------------
1. Activation:  
   - Click on CheckMate icon to sign up or create a guest account (no signup).
   - Right-click on highlighted text.
   - CheckMate immediately starts the fact-check process.

2. AI Analysis:
   - The system uses AI to analyze the selected text. 
   - It uses various AI models.

3. Results Display:  
   - The result appears as True, False, Somewhat True, Somewhat False, or Invalid.  
   - The displayed verdict is based on current system performance and testing.

Key Features
-----------------------------------------------------------------------
- Multiple AI Models:  
  - Choose among several AI models for different types of claims. (Pro)  
  - Each model has its own accuracy and speed profile. (Pro)

- User-Friendly Interface:  
  - Use a right-click to activate fact-checking.  
  - View clear and concise results promptly.
  - View related sources in the result.

- Historical Data:  
  - Save and review your past fact-checks in a dedicated dashboard web app. (Historical data cannot be reviewed from the extension)  
  - Monitor changes over time in your personal dashboard. (Pro)

- Credit System:  
  - Guest users have one-off credits with a 30 day timeline.  
  - Free users receive a monthly credit refresh.
  - Pro users will get higher monthly credits per month. 

- Easy Conversion:  
  - Guests can upgrade to "Free" account by signing up from the official CheckMate website.  
  - Upgrade to Pro for unlimited fact-checks and advanced features.

Impact Statements:
-----------------------------------------------------------------------
- Fast Response: Fact-checks are processed quickly.
- Reliable Results: The system provides a consistent method for verifying claims using AI.
- Free Access: Try it at no cost. Enjoy AI-powered fact-checking without any payment.

Try CheckMate for free today. Experience fast, accurate fact-checking with just one right-click.

Learn More: https://checkmate.hstl.pro/

Changelog:
-----------------------------------------------------------------------
🔹 What's New (v0.2.0 – March 2025)  
- Fixed long load time for CheckMate popup.
- Improved "Not authenticated" popup logic.
- Added functionality to trigger CheckMate popup from content overlay.
- Improved UX by seamlessly processing the initial fact-check automatically when the user is not logged in. 
- Other UI and performance tweaks.  
- Bug fixes and stability improvements.  

🔹 What's New (v0.1.0 – March 2025)  
- Added feedback submission feature in the extension popup.  
- Improved UI and performance tweaks for faster load time.  
- Bug fixes and stability improvements.

Technical

Version
0.2.0
Manifest
V3
Size
524KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
dakejmpmagfgfofgfmnlnbdkmiccaaba
Developer ID
uf072682d10f4cbea63da524e02e82d26
Developer Email
[email protected]
Created
Feb 19, 2025
Last Updated (Store)
Mar 18, 2025
Last Scraped
May 19, 2026
Website

Similar extensions

Alternatives to CheckMate: AI-Powered Fact Checker, ranked by description similarity.

Data sourced from the Chrome Web Store · last verified May 19, 2026.