# HalluCheck

> Cross-reference LLM-generated content with Wikipedia, Wikidata, and other trusted sources to detect potential AI hallucinations

Canonical page: [https://chrome-stats.com/d/hallucheck](https://chrome-stats.com/d/hallucheck)

## Overview

- **ID:** `hallucheck`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** EasyExplorar
- **Category:** feeds-news-blogging,privacy-security,search-tools
- **Version:** 1.1.0
- **Last updated:** 2025-04-26
- **First published:** 2025-04-23
- **Size:** 42 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/hallucheck/)
- **Website:** [https://github.com/easyexplorar/HalluCheck](https://github.com/easyexplorar/HalluCheck)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/hallucheck/privacy/](https://addons.mozilla.org/firefox/addon/hallucheck/privacy/)

## Description

Your Truth Guardian for AI Content
Fact-check AI claims instantly with a single click. Never be misled again.

In a world where AI can generate convincing but sometimes inaccurate information, HalluCheck stands guard between you and potential misinformation. This lightweight extension instantly verifies AI-generated content against trusted knowledge sources like Wikipedia, academic papers, and reference databases.

Simply highlight any text in AI chat responses, and HalluCheck works its magic:
• Green highlights indicate verified facts
• Yellow shows uncertain claims needing caution
• Red flags potential misinformation

HalluCheck works entirely in your browser and respects your privacy with zero tracking. It doesn't require API keys or accounts—just install and start fact-checking immediately.

Perfect for students verifying research, professionals validating information, journalists checking facts, and anyone who values accuracy in the age of AI.

Don't just trust. Verify with HalluCheck—your essential companion for navigating the world of AI-generated content with confidence.

Supported LLM Interfaces
This extension works with numerous AI chatbots and LLM interfaces including:

ChatGPT (OpenAI)
Grok
Claude (Anthropic)
Google Gemini (formerly Bard)
Microsoft Copilot (formerly Bing Chat)
Perplexity AI & Perplexity Labs
Alibaba Tongyi Qwen & Qwen Chat
DeepSeek
Yuanbao AI (Tencent)
Doubao (ByteDance)
Cici (ByteDance)

## Rankings

- #132,625 — Overall

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `https://*.wikipedia.org/*`
- `https://*.wikidata.org/*`
- `https://kgsearch.googleapis.com/*`
- `https://*.dbpedia.org/*`
- `https://lookup.dbpedia.org/*`
- `https://*.wikimedia.org/*`
- `https://*.openlibrary.org/*`
- `https://*.thesaurus.org/*`
- `https://*.wiktionary.org/*`
- `https://*.merriam-webster.com/*`
- `https://api.crossref.org/*`
- `https://chat.openai.com/*`
- `https://*.openai.com/*`
- `https://grok.com/*`
- `https://*.grok.com/*`
- `https://grok.x.ai/*`
- `https://*.x.ai/*`
- `https://claude.ai/*`
- `https://*.claude.ai/*`
- `https://*.anthropic.com/*`
- `https://gemini.google.com/*`
- `https://*.google.com/search*`
- `https://www.bing.com/chat*`
- `https://*.bing.com/search*`
- `https://perplexity.ai/*`
- `https://*.perplexity.ai/*`
- `https://labs.perplexity.ai/*`
- `https://tongyi.aliyun.com/*`
- `https://qianwen.aliyun.com/*`
- `https://chat.qwen.ai/*`
- `https://*.qwen.ai/*`
- `https://*.deepseek.com/*`
- `https://deepseek.ai/*`
- `https://yuanbao.tencent.com/*`
- `https://*.yuanbao.tencent.com/*`
- `https://www.doubao.com/chat*`
- `https://*.doubao.com/*`
- `https://www.cici.com/chat*`
- `https://*.cici.com/*`
- `https://*.bytedance.com/*`

### Content script matches

- `chat.openai.com`
- `*.openai.com`
- `grok.com`
- `*.grok.com`
- `grok.x.ai`
- `*.x.ai`
- `claude.ai`
- `*.claude.ai`
- `*.anthropic.com`
- `gemini.google.com`
- `*.google.com`
- `www.bing.com`
- `*.bing.com`
- `perplexity.ai`
- `*.perplexity.ai`
- `labs.perplexity.ai`
- `tongyi.aliyun.com`
- `qianwen.aliyun.com`
- `chat.qwen.ai`
- `*.qwen.ai`
- `*.deepseek.com`
- `deepseek.ai`
- `yuanbao.tencent.com`
- `*.yuanbao.tencent.com`
- `www.doubao.com`
- `*.doubao.com`
- `www.cici.com`
- `*.cici.com`
- `*.bytedance.com`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Request access to the following domains: wikipedia.org, wikidata.org, googleapis.com, dbpedia.org, wikimedia.org, openlibrary.org, thesaurus.org, wiktionary.org, merriam-webster.com, crossref.org, openai.com, grok.com, x.ai, claude.ai, anthropic.com, google.com, bing.com, perplexity.ai, aliyun.com, qwen.ai, deepseek.com, deepseek.ai, tencent.com, doubao.com, cici.com, bytedance.com
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Pangram AI Detection](https://chrome-stats.com/d/pangram-ai-detection) — 578 users, 2.00 / 5
- [Checkwise Fact-Checker](https://chrome-stats.com/d/checkwise-fact-checker)
- [Fact Checker](https://chrome-stats.com/d/fact-checker) — 11 users, 1.00 / 5
- [Fake News Detector 101](https://chrome-stats.com/d/fake-news-detector-101) — 1 users
- [Fake News Detector 101](https://chrome-stats.com/d/fakenewsdetector101) — 1 users
- [Detectly – AI Text Checker](https://chrome-stats.com/d/detectly-ai-text-checker) — 54 users
- [FACTA: Fact Checker](https://chrome-stats.com/d/facta-fact-checker) — 7 users
- [Resemble AI Deepfake Detector](https://chrome-stats.com/d/resemble-ai-deepfake-detector) — 1 users
- [d-AI-logue Disinfo Assistant](https://chrome-stats.com/d/d-ai-logue-disinfo-assistant) — 11 users
- [Fact-It](https://chrome-stats.com/d/fact-it) — 1 users
- [Sidecar by AutoAlign AI](https://chrome-stats.com/d/sidecar-by-autoalign-ai) — 1 users
- [Fact Spreader](https://chrome-stats.com/d/fact-spreader) — 3 users, 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/hallucheck)