Stop Misinformation Before It Spreads
FactSentinel flags false claims as you browse and checks any text you select with a right-click. Two AI models, one verdict, sources you can follow.
Create a free account See the browser workflow Open Misinformation Checker
No scientific evidence supports this claim. Multiple peer-reviewed studies have found no link between 5G and respiratory health.
vs. accurate news
by fake news
a claim with FactSentinel
Misinformation spreads faster than ever. You can't fact-check everything manually. FactSentinel watches your back automatically, alerting you to false claims before you share or believe them.
How It Works
Get protected in under a minute. No technical setup required.
Install the Extension
Add FactSentinel to Chrome. Takes 10 seconds, no account needed to start.
Browse Normally
Auto-Protection scans pages for false claims as you browse. No extra effort required.
Stay Informed
Get instant alerts when misinformation is detected. Right-click any text to verify manually.
Built for Truth-Seekers
Whether you're a journalist, researcher, educator, or concerned citizen.
Auto-Protection
FactSentinel scans pages automatically as you browse, alerting you to false claims before they mislead you. Your always-on misinformation shield.
Instant Verification
Select any text, right-click, and get AI-powered fact-checking results in seconds. Perfect for claims you want to verify manually.
Multi-AI Accuracy
Uses both OpenAI and Anthropic Claude for cross-verification. When multiple AIs agree, you can trust the result.
Privacy Options
Use our platform for convenience, or bring your own API keys for maximum privacy. BYOK requests go directly to AI providers, so we never receive your keys or claim text.
Simple, Honest Pricing
Start free. Upgrade when you need more.
Free
- 10 manual checks/month
- 50 auto-protection scans
- Browser extension
- No credit card needed
BYOK License
- Unlimited checks forever
- Use your own API keys
- Maximum privacy with keys that stay local
- Multi-AI consensus mode
Platform
- 100 manual checks/month
- 400 auto-protection scans
- We handle all AI costs
- Cancel anytime