Data month 2026-09
Best AI Detection & Deepfake Browser Extensions
As of September 2026, AlphaMoat tracks 250 AI browser extensions tagged AI Detection & Deepfake. The most-installed is GPTZero (500.0K users). Ranked by install count, updated monthly.
| # | Extension | Publisher | Users | Rating |
|---|---|---|---|---|
| 1 |  Bring AI detection, citation checks, live feedback, and writing replays into Google Docs. | GPTZero | 500.0K | ★ 4.7 |
| 2 |  Copyleaks AI Content Detector checks whether text was written by a person or an AI model, even when the AI text has been paraphrased. | copyleaks | 200.0K | ★ 4.1 |
| 3 |  Hive AI Detector checks whether text, images, audio, or video were generated by AI, showing the likelihood directly in the browser. | Castle Global | 60.0K | ★ 4.6 |
| 4 |  This Chrome extension scans for AI writing and plagiarism in Google Docs and on web pages, with a replay of how a document was written. | Originality.ai | 50.0K | ★ 3.8 |
| 5 |  Pangram detects AI-written text on any page, document or social feed with one click. | pangram | 30.0K | ★ 4.6 |
| 6 |  AI Detector - BitMind flags AI-generated images and videos as you browse by hovering over posts on X/Twitter, Instagram, Facebook or Reddit. | BitMind Labs | 30.0K | ★ 3.8 |
| 7 |  Humanize AI-generated text, scan for AI traits, and solve problems from screenshots anywhere online. | Undetectable AI | 30.0K | ★ 4.7 |
| 8 |  Detect AI-generated text and images on any webpage with the trusted Winston AI detector. | Winston AI | 10.0K | ★ 4.8 |
| 9 |  Type pre-written text in Google Docs with human-like rhythm so copied content reads as manual typing. | Undetectable AI | 10.0K | ★ 3.3 |
| 10 |  Check text for signs of AI authorship and inspect sentence-level detection scores while browsing. | Sapling | 9.0K | ★ 4.8 |
| 11 |  DetectGPT identifies writing that may have been generated by ChatGPT while users browse the web. | Originality.ai | 8.0K | ★ 3.2 |
| 12 |  Quetext checks any text for plagiarism and AI-written content, scanning highlighted text right on the page. | Quetext | 7.0K | ★ 4.8 |
| 13 |  An auto typer that enters your text character by character in Docs, Word and any site. | write-it | 6.0K | ★ 4.7 |
| 14 |  Trace GPT AI Detector by PlagiarismCheck.org checks web text, sites, and emails for AI-generated content. | Teaching Writing Online | 6.0K | ★ 4.3 |
| 15 |  Integrito checks texts, quizzes, and discussions for plagiarism and AI content in a single click. | Teaching Writing Online | 6.0K | ★ 4.8 |
| 16 |  Percent Human is a content detector that flags AI-generated writing from ChatGPT and GPT-3 with a single click. | percenthuman | 5.0K | ★ 3.2 |
| 17 |  Hiya's Deepfake Voice Detector uses AI to tell whether a voice in video or audio is real or AI-generated. | Hiya | 4.0K | ★ 2.8 |
| 18 |  ZeroGPT.cc scans text you highlight in the browser and reports how much of it looks AI-generated. | zerogpt | 4.0K | ★ 3.0 |
| 19 |  VibeGrade is an AI teaching and grading assistant that helps teachers build materials and grade papers inside Google Docs, Canvas, and other tools. | vibegrade | 3.0K | ★ 4.3 |
| 20 |  Verifee用人工智能判定捷克新闻文章可信度，自动显示可信度评分并给出分析依据。 | Verifee | 3.0K | ★ 5.0 |
| 21 |  AI detection and humanization extension for checking and refining your writing. | - | 2.0K | ★ 4.2 |
| 22 |  Clarity automatically hides AI-generated videos from your YouTube Home feed, Shorts and recommendations. | - | 2.0K | ★ 4.2 |
| 23 |  Detect and block AI-generated images, text, video and audio on webpages using AI or Not detection models. | AIORNOT | 2.0K | ★ 2.7 |
| 24 |  Find similar TikTok creators, download videos, extract audio and work with AI subtitles directly on TikTok. | influencerfinder | 2.0K | ★ 4.7 |
| 25 |  AI Detector and Humanizer that identifies AI-written text and rewrites it to sound natural in your browser. | Smodin | 1.0K | ★ 5.0 |
| 26 |  PinSight spots AI-generated content on Pinterest and controls how AI pins are displayed in your feed. | - | 1.0K | ★ 3.3 |
| 27 |  An AI-content and plagiarism checker for verifying selected text while browsing. | Polygraf | 1.0K | ★ 4.4 |
| 28 |  Undetectable AI checks machine-generated content and rewrites it into more natural, human-like language. | - | 1.0K | ★ 5.0 |
| 29 |  AI-powered fake-review detector that extracts Amazon product reviews and scores their authenticity so you can shop with confidence. | shift8web | 1.0K | ★ 4.1 |
| 30 |  Helps teachers detect AI-generated and plagiarized essays in real time with an easy browser-based checker for authentic student work. | ai-checker-for-teachers | 1.0K | ★ 5.0 |
| 31 |  AI Slop Blocker hides Google's AI Overview and blocks AI-disclosed YouTube videos and shorts automatically. | - | 1.0K | ★ 4.0 |
| 32 |  Select text on any page to rewrite AI writing, score AI-generated content or find synonyms, starting with a free account. | Ryne AI | 1.0K | ★ 4.9 |
| 33 |  Humanizer AI rewrites generated text into a more natural style and includes AI checking and humanization features. | - | 1.0K | ★ 4.3 |
| 34 |  TextAdviser checks selected text for spelling, plagiarism, AI-written content and clarity from your browser. | textadviser | 1.0K | ★ 2.6 |
| 35 |  Check a page before you publish: private on-device AI review, headings, spacing, same-tab and broken links. Free. | Siteefy | 972 | ★ 5.0 |
| 36 |  AI Voice Detector identifies in real time whether the audio you are listening to is a real voice or AI-generated. | AI Voice Detector | 834 | ★ 5.0 |
| 37 |  AHelp provides AI-assisted writing, research, citation, grading, plagiarism checking, and content detection in the browser. | AHelp | 824 | ★ 5.0 |
| 38 |  AI Content Detector scans selected text to reveal whether it was written by ChatGPT, GPT-4, or other AI models. | contentdetector | 798 | ★ 3.7 |
| 39 |  SafeTuber is an AI-powered YouTube filter and parental control suite that analyzes transcripts and blocks unsuitable content. | safetuber | 767 | ★ 5.0 |
| 40 |  AI Image Detector checks in one click whether a picture is AI-generated art or a real photograph, with fast results. | - | 641 | ★ 5.0 |
| 41 |  CatchGPT detects AI-written text and AI-generated images with a single click. | catchgpt | 630 | ★ 5.0 |
| 42 |  Detect AI-written text and humanize it for Google Docs, Gmail, and the web in one click. | Walter AI | 604 | ★ 4.9 |
| 43 |  AI Image Detector checks whether a picture was generated by AI, giving a quick verdict after you upload the image file. | aiimagedetector | 601 | - |
| 44 |  Extension that analyses and extracts metadata from content found on the web. | - | 584 | ★ 5.0 |
| 45 |  Facticity is an AI fact-checker that verifies claims on web pages, news, videos, and podcasts in real time. | AI Seer | 552 | ★ 4.3 |
| 46 |  Detects vibecoded websites by analyzing visual patterns and content markers | tryvibe | 510 | ★ 3.5 |
| 47 |  Rewrite, humanize, and AI-check any text on any page. Powered by your Word Spinner account. | Word Spinner | 505 | ★ 5.0 |
| 48 |  Google Docs tool that replays edit history and uses AI to check originality and detect AI-written content. | teachany | 488 | ★ 5.0 |
| 49 |  Instantly summarize any Reddit thread, subreddit, or search result and chat with AI to dig deeper | Martin Machava | 370 | ★ 4.8 |
| 50 |  Hides AI-generated posts in your feed. Scoring runs on your device. | Brianmunene | 360 | ★ 4.1 |
Related tags
FAQ
AI Detection & Deepfake Chrome extensions: which ranks #1?
In September 2026, GPTZero (500.0K users) ranks #1 by users, followed by AI Content Detector (200.0K users) and Hive AI Detector (60.0K users).
AI Detection & Deepfake Chrome extensions: what are the top 10?
Ranked by users, the top 10 are: 1. GPTZero, 2. AI Content Detector, 3. Hive AI Detector, 4. AI Detector & Writing Replay, 5. Pangram AI Detection, 6. AI Detector, 7. Undetectable AI, 8. AI Detector for text and images, 9. Undetectable AI, 10. AI Content Detector.
How many AI Detection & Deepfake Chrome extensions does AlphaMoat track, and where does the data come from?
AlphaMoat tracks 250 AI Detection & Deepfake Chrome extensions, ranked by users. User counts come from public Chrome Web Store data. Updated monthly; the current data is for September 2026.
Lists every Chrome extension carrying this tag, ranked by latest-month install count. See methodology.