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GPTZero: AI Detection & Writing Replay

Chrome extension by chrome-extension-publisher · Productivity · Education

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  • Established publisher
  • Trader

A Chrome extension in Productivity · Education with 500 000 users, a widely installed extension.

Specific sites only: 9 match patterns.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
500 000
Rating
4.7 (727 ratings)
Users, last 15 days
+100k
Rating, last 30 days
Not watched long enough to say
Version
2026.9.0
Updated in the store
2026-09-14
Published
2023-05-03
Manifest
V3
Browser access
6 permissions, 9 site patterns

How it has moved

Users
+100k since 01.09
400k-500k · 6 readings
2026-09-03: released 2026.8.32026-09-15: released 2026.9.0
  1. 2026-09-01400k
  2. 2026-09-07400k
  3. 2026-09-09400k
  4. 2026-09-10400k
  5. 2026-09-13400k
  6. 2026-09-15500kreleased 2026.9.0
Rating
unchanged since 01.09
reviewsrating 4.69 · 6 readings
2026-09-03: released 2026.8.32026-09-15: released 2026.9.0
  1. 2026-09-01reviews723rating4.69
  2. 2026-09-07reviews724rating4.69
  3. 2026-09-09reviews725rating4.69
  4. 2026-09-10reviews726rating4.69
  5. 2026-09-13reviews727rating4.69
  6. 2026-09-15reviews727rating4.69released 2026.9.0
Users
+100k since 01.09
400k-500k · 6 readings
2026-09-03: released 2026.8.32026-09-15: released 2026.9.0
  1. 2026-09-01400k
  2. 2026-09-07400k
  3. 2026-09-09400k
  4. 2026-09-10400k
  5. 2026-09-13400k
  6. 2026-09-15500kreleased 2026.9.0
Rating
unchanged since 01.09
reviewsrating 4.69 · 6 readings
2026-09-03: released 2026.8.32026-09-15: released 2026.9.0
  1. 2026-09-01reviews723rating4.69
  2. 2026-09-07reviews724rating4.69
  3. 2026-09-09reviews725rating4.69
  4. 2026-09-10reviews726rating4.69
  5. 2026-09-13reviews727rating4.69
  6. 2026-09-15reviews727rating4.69released 2026.9.0

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 9 match patterns.

  • http://localhost/*
  • https://*.gptzero.me/*
  • https://*.gptzero-staging.com/*
Show the remaining 6
  • https://*.taile98dc.ts.net/*
  • https://*.growthbook.io/*
  • https://docs.google.com/*
  • https://classroom.google.com/*
  • https://assignments.google.com/*
  • https://chatgpt.com/*
  • Read and change cookies on the sites it can access cookies
  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
Show the remaining 3
  • Schedule work to run later alarms
  • Add items to the right-click menu contextMenus
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 2026.9.0
  2. Version 2026.8.3

What changed recently

  1. Package size changed
  2. Released version 2026.9.0 (was 2026.8.3)
  3. Package size changed
Show the remaining 1
  1. Released version 2026.8.3 (was 2026.8.2)

The publisher

chrome-extension-publisher. Listed website: gptzero.me.

Like this one

Listings the catalog judges closest in what they say they do.

  1. TrueWrite - Teacher AI Detection & Document Replay Analytics Describes nearly the same job, smaller audience 111 users ★ 5.0
  2. Passed.ai Extension Describes nearly the same job, smaller audience 1k users ★ 3.0
  3. Ghost Writer Technologies Describes nearly the same job, smaller audience 80 users ★ 5.0
  4. WriteCheck — Writing Insights for Google Docs Describes nearly the same job, smaller audience 41 users ★ 5.0
  5. Authent Describes nearly the same job, smaller audience 72 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

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See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.