OpenErrata
Crowdsourced, inline LLM investigations of the things you're reading.
As of June 2026, OpenErrata has 34 users in the Productivity category.
Usersup 41.7 percent+41.7%
34
34
Ratingno change0%
—
— reviews
Reviewsno change0%
—
Version
0.3.2
Manifest V3
History
8 snapshotsTracking since Apr 3, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 3, 2026 | 24 | — | — | 0.3.2 |
| Apr 17, 2026 | 23 | — | — | 0.3.2 |
| Apr 28, 2026 | 31 | — | — | 0.3.2 |
| May 5, 2026 | 34 | — | — | 0.3.2 |
| May 11, 2026 | 30 | — | — | 0.3.2 |
| May 16, 2026 | 32 | — | — | 0.3.2 |
| May 29, 2026 | 33 | — | — | 0.3.2 |
| Jun 5, 2026 | 32 | — | — | 0.3.2 |
| Now | 34 | — | — | 0.3.2 |
Permissions & access
- Permissions
- activeTabstoragescriptingwebNavigationalarms
- Host access
- https://*/*, http://*/*
Screenshots
About
OpenErrata fact-checks posts on Wikipedia, X, LessWrong, and Substack using frontier AI models with web search. When you visit a post that's been investigated, incorrect claims get a red underline. Hover for a summary of what's wrong. Click for full reasoning and source links. Posts with no issues show nothing — the extension stays out of your way. How it works: - The AI reads the full post, searches the web, and identifies claims that are demonstrably incorrect - Only flags things with concrete evidence against them — disputed claims, jokes, and ambiguity are left alone - Every investigation is public and auditable: the prompt, reasoning, and sources are all inspectable You can trigger investigations yourself with your own OpenAI API key, or wait for the community-driven queue to pick up popular posts. Once an investigation is completed Supported platforms: LessWrong, Substack (including custom domains), X/Twitter (Sort of), OpenErrata is fully open source. Code, spec, and design goals are public at https://github.com/ZeroPathAI/OpenErrata.
Technical
- Version
- 0.3.2
- Manifest
- V3
- Size
- 217KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- iflopmpcoifkihfimncdjkokibdfkkbd
- Developer ID
- u68d91b701537473c8c00683c715cc499
- Developer Email
- [email protected]
- Created
- Feb 25, 2026
- Last Updated (Store)
- Mar 6, 2026
- Last Scraped
- Jun 5, 2026
- Website
- —
- Support URL
- —
Similar extensions
Alternatives to OpenErrata, ranked by description similarity.
ClaimValidator
Increase trust on internet by checking whether the claims people make are really substantiated by their sources or not.
1
AI Text Detector
Detect and highlight any text that looks AI-generated!
20
Emetrix
Emetrix: An objective, AI-powered fact-checking engine for the web.
1
Reddit Fake News Detector
Detects and labels fake news in Reddit posts.
—
AiTruthScan
Detect AI-generated text, images, video and audio using multi-LLM consensus analysis.
—
Scamdar
Analyze web pages for scam indicators and get a safety score
5
Lens - AI Text Analyzer & Insights
Select text, right-click for AI insights. Analyze posts & opinions to sharpen critical thinking. Gemini, Claude & more. Open source.
34
Theia: Your Personal AI Fact Checker
Hold your LLM accountable
66
★ 4.8
Data sourced from the Chrome Web Store · last verified Jun 5, 2026.