Frequently Asked Questions
How do I install SanityCheck?
SanityCheck is a Chrome extension. Here's how to install it:
1
Download the extension
Click the download button on our homepage to get the extension ZIP file, then unzip it to a folder on your computer.
2
Open Chrome Extensions & Enable Developer Mode
Type chrome://extensions in your address bar. Toggle on "Developer mode" in the top-right corner.
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3
Load the extension
Click "Load unpacked" and select the folder where you unzipped the extension.
Select the extension folder
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sanitycheck-extension
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4
You're all set!
SanityCheck should now appear in your extensions list. Pin it to your toolbar for easy access.
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SanityCheck 1.1.0
Surfaces genuine logical gaps and reasoning issues in articles
ID: cnonmmniemjiakcfldgpepdopnnbdbjd
Inspect views: service worker
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What's the difference between SanityCheck and Miss Info?
They both run on the same backend—that is, both will catch the same logical issues. However, Miss Info communicates far more casually and has more of a human tone (and a different colour palette!). Try toggling the switch in the top-right corner to see the difference.
How accurate is SanityCheck?
SanityCheck uses an ensemble of LLMs to identify potential logical issues, but it's not perfect. Think of it as a second pair of eyes that catches things you might miss—not an oracle. We recommend using it as a starting point for critical thinking, not a replacement for it.
Does it work on all websites?
SanityCheck works best on article-style content: news sites, blogs, opinion pieces, and long-form writing. It may not work well on paywalled content, dynamically-loaded pages, or sites with unusual HTML structures.
Is my data sent to a server?
Yes, the article text is sent to our server for analysis. We don't store the content permanently or associate it with your identity. See our privacy practices on GitHub.
Why do some highlights seem wrong?
LLMs can make mistakes or be overly cautious. If you see a highlight that seems off, click "leave feedback on this text" to help us improve. We're actively training on user feedback to reduce false positives.
Is this free?
Yes, SanityCheck is currently free during our beta period. We may introduce usage limits or a paid tier in the future to cover API costs, but the core functionality will remain accessible.