# LLM Slop Detector > Flags invisible Unicode, AI-style punctuation, and telltale LLM phrases as you type -- or in any page you're reading. Local only. Canonical page: [https://chrome-stats.com/d/llm-slop-detector](https://chrome-stats.com/d/llm-slop-detector) ## Overview - **ID:** `llm-slop-detector` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** Mathias. A - **Category:** other - **Daily users:** 5 - **Weekly downloads:** 2 - **Version:** 0.10.1 - **Last updated:** 2026-08-20 - **First published:** 2026-04-24 - **Size:** 57 KB - **Data as of:** 2026-09-13 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/llm-slop-detector/) - **Website:** [https://github.com/mandakan/llm-slop-detector](https://github.com/mandakan/llm-slop-detector) - **Privacy policy:** [https://addons.mozilla.org/firefox/addon/llm-slop-detector/privacy/](https://addons.mozilla.org/firefox/addon/llm-slop-detector/privacy/) ## Description LLM Slop Detector highlights the things that give AI-generated writing away: invisible Unicode smuggled inside text, em dashes and curly quotes that spell-checkers ignore, and phrases like "delve into", "tapestry of", "it's worth noting", or "game-changing" that appear far more often in LLM output than in human writing. It works in two ways: As you write - Scans every textarea, text input, and contenteditable on any webpage. - Inline wavy underlines mark flagged words and phrases. A floating badge shows the count. Click it for per-finding explanations. - One-click fixes for deterministic characters (em dash -> hyphen, curly quotes -> straight, zero-width spaces -> deleted). The fix goes through the host editor's native undo stack, so Cmd+Z works. - Tested in Gmail compose, Proton Mail compose, GitHub issue forms, Reddit, Substack, and anything else built on plain contenteditable. As you read - Click the "Scan this page" button in the toolbar popup to highlight slop in any article, blog post, or thread you're reading. Wavy underlines go under flagged words; a floating results panel lists every finding and jumps you to it on click. - One-shot, click-to-scan only. No background scanning. Rules are configurable - ~40 built-in core rules plus eleven opt-in packs covering academic writing, general LLM cliches, fiction tells, Claude-specific mannerisms, structural patterns ("not X but Y"), invisible-Unicode security threats, and model-specific tells for Gemini, DeepSeek, Llama, Qwen, and Grok -- 500+ curated regex patterns in total. - Enable only the packs you care about. Per-site disable in one click. Privacy - Nothing you type, read, or scan is ever transmitted, logged, or persisted. All scanning runs locally inside the extension's sandboxed JS. - No telemetry, no analytics, no remote rule updates. The rules are bundled at build time and ship with each extension release. - Storage is chrome.storage.local only; your settings don't leave this device. - No "cloud assist" toggle. Never has been. Never will be. Open source (MIT) at github.com/mandakan/llm-slop-detector. Also available as a VS Code extension, an npm CLI, and a web playground for paste-and-check. Same rule engine across all of them. ## Rankings - #45,600 — Overall - #116 — phrase - #136 — detect ## Permissions and access ### Permissions - `storage` ### Host permissions - `http://*/*` - `https://*/*` ### Content script matches - `*` ## Safety - **Risk impact:** Moderate risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site. - This extension was recently updated in the past month. New updates 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 - [LLMs.txt Compliance Inspector](https://chrome-stats.com/d/llms-txt-compliance-inspector) — 1 users - [Offline AI Detector](https://chrome-stats.com/d/real-ink) — 4 users - [Em-Dash Detector](https://chrome-stats.com/d/em-dash-detector) — 14 users, 5.00 / 5 - [LinkedIn AI Slop Detector](https://chrome-stats.com/d/linkedin-ai-slop-detector) — 10 users - [ThatSlop — AI Slop Detector](https://chrome-stats.com/d/thatslop-ai-slop-detector) — 11 users - [LinkedIn Slop Detector](https://chrome-stats.com/d/linkedin-slop-detector) — 1 users - [iWordCraft - AI Detector & Writing Coach](https://chrome-stats.com/d/iwordcraft-ai-writing-coach) — 4 users - [LanguageTool Website Spellcheck - LTWS](https://chrome-stats.com/d/lt-website-spellcheck) — 531 users, 3.00 / 5 - [LLM Text Assistant](https://chrome-stats.com/d/llm-text-assistant) - [Chitan - LLM Writing Assistant](https://chrome-stats.com/d/chitan-llm-writing-assistant) - [Slopify](https://chrome-stats.com/d/slopify) - [Lazy Post Detector](https://chrome-stats.com/d/lazy-post-detector) --- Source: [Chrome-Stats](https://chrome-stats.com/d/llm-slop-detector)