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Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector

Chrome extension by quillbot · Productivity · Communication

  • Featured
  • Established publisher
  • Trader

A Chrome extension in Productivity · Communication with 6 000 000 users, one of the largest listings in the store. Audience over the last 30 days: unchanged.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 5 screenshots

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

Users
6 000 000
Rating
4.7 (6 088 ratings)
Users, last 30 days
Unchanged (the store rounds this count to 1 000 000, so it moves only between steps)
Rating, last 30 days
Steady over 30 days
Version
4.123.0
Updated in the store
2026-10-23
Published
2018-02-08
Manifest
V3
Browser access
8 permissions, 3 site patterns

How it has moved

Users
unchanged since 28.09
6M · 18 readings
2026-09-30: released 4.118.02026-10-05: released 4.119.02026-10-07: released 4.120.02026-10-08: released 4.120.12026-10-14: released 4.121.02026-10-22: released 4.122.02026-10-23: released 4.123.0
  1. 2026-09-286M
  2. 2026-10-056Mreleased 4.119.0
  3. 2026-10-086Mreleased 4.120.1
  4. 2026-10-096M
  5. 2026-10-106M
  6. 2026-10-136M
  7. 2026-10-146Mreleased 4.121.0
  8. 2026-10-166M
  9. 2026-10-176M
  10. 2026-10-186M
  11. 2026-10-196M
  12. 2026-10-206M
  13. 2026-10-216M
  14. 2026-10-226Mreleased 4.122.0
  15. 2026-10-236Mreleased 4.123.0
  16. 2026-10-246M
  17. 2026-10-256M
  18. 2026-10-286M
Rating
+0.035 since 28.09
reviewsrating 4.702-4.737 · 18 readings
2026-09-30: released 4.118.02026-10-05: released 4.119.02026-10-07: released 4.120.02026-10-08: released 4.120.12026-10-14: released 4.121.02026-10-22: released 4.122.02026-10-23: released 4.123.0
  1. 2026-09-28reviews6krating4.702
  2. 2026-10-05reviews6krating4.702released 4.119.0
  3. 2026-10-08reviews6krating4.703released 4.120.1
  4. 2026-10-09reviews6krating4.703
  5. 2026-10-10reviews6krating4.703
  6. 2026-10-13reviews6krating4.703
  7. 2026-10-14reviews6krating4.737released 4.121.0
  8. 2026-10-16reviews6krating4.731
  9. 2026-10-17reviews6krating4.731
  10. 2026-10-18reviews6.1krating4.729
  11. 2026-10-19reviews6.1krating4.729
  12. 2026-10-20reviews6.1krating4.730
  13. 2026-10-21reviews6.1krating4.731
  14. 2026-10-22reviews6.1krating4.734released 4.122.0
  15. 2026-10-23reviews6.1krating4.735released 4.123.0
  16. 2026-10-24reviews6.1krating4.736
  17. 2026-10-25reviews6.1krating4.737
  18. 2026-10-28reviews6.1krating4.737
Users
+1M since 31.08
5M-6M · 31 readings
2026-09-02: released 4.110.12026-09-07: released 4.112.02026-09-10: released 4.113.02026-09-12: released 4.114.02026-09-18: released 4.115.02026-09-24: released 4.116.02026-09-27: released 4.117.02026-09-30: released 4.118.02026-10-05: released 4.119.02026-10-07: released 4.120.02026-10-08: released 4.120.12026-10-14: released 4.121.02026-10-22: released 4.122.02026-10-23: released 4.123.0
  1. 2026-08-315M
  2. 2026-09-045M
  3. 2026-09-065M
  4. 2026-09-075Mreleased 4.112.0
  5. 2026-09-095M
  6. 2026-09-106Mreleased 4.113.0
  7. 2026-09-136M
  8. 2026-09-156M
  9. 2026-09-166M
  10. 2026-09-206M
  11. 2026-09-216M
  12. 2026-09-256M
  13. 2026-09-266M
  14. 2026-09-286M
  15. 2026-10-056Mreleased 4.119.0
  16. 2026-10-086Mreleased 4.120.1
  17. 2026-10-096M
  18. 2026-10-106M
  19. 2026-10-136M
  20. 2026-10-146Mreleased 4.121.0
  21. 2026-10-166M
  22. 2026-10-176M
  23. 2026-10-186M
  24. 2026-10-196M
  25. 2026-10-206M
  26. 2026-10-216M
  27. 2026-10-226Mreleased 4.122.0
  28. 2026-10-236Mreleased 4.123.0
  29. 2026-10-246M
  30. 2026-10-256M
  31. 2026-10-286M
Rating
+0.034 since 31.08
reviewsrating 4.699-4.737 · 31 readings
2026-09-02: released 4.110.12026-09-07: released 4.112.02026-09-10: released 4.113.02026-09-12: released 4.114.02026-09-18: released 4.115.02026-09-24: released 4.116.02026-09-27: released 4.117.02026-09-30: released 4.118.02026-10-05: released 4.119.02026-10-07: released 4.120.02026-10-08: released 4.120.12026-10-14: released 4.121.02026-10-22: released 4.122.02026-10-23: released 4.123.0
  1. 2026-08-31reviews5.9krating4.703
  2. 2026-09-04reviews5.9krating4.702
  3. 2026-09-06reviews5.9krating4.701
  4. 2026-09-07reviews5.9krating4.700released 4.112.0
  5. 2026-09-09reviews5.9krating4.699
  6. 2026-09-10reviews5.9krating4.700released 4.113.0
  7. 2026-09-13reviews5.9krating4.700
  8. 2026-09-15reviews5.9krating4.700
  9. 2026-09-16reviews5.9krating4.701
  10. 2026-09-20reviews5.9krating4.700
  11. 2026-09-21reviews5.9krating4.701
  12. 2026-09-25reviews6krating4.701
  13. 2026-09-26reviews6krating4.702
  14. 2026-09-28reviews6krating4.702
  15. 2026-10-05reviews6krating4.702released 4.119.0
  16. 2026-10-08reviews6krating4.703released 4.120.1
  17. 2026-10-09reviews6krating4.703
  18. 2026-10-10reviews6krating4.703
  19. 2026-10-13reviews6krating4.703
  20. 2026-10-14reviews6krating4.737released 4.121.0
  21. 2026-10-16reviews6krating4.731
  22. 2026-10-17reviews6krating4.731
  23. 2026-10-18reviews6.1krating4.729
  24. 2026-10-19reviews6.1krating4.729
  25. 2026-10-20reviews6.1krating4.730
  26. 2026-10-21reviews6.1krating4.731
  27. 2026-10-22reviews6.1krating4.734released 4.122.0
  28. 2026-10-23reviews6.1krating4.735released 4.123.0
  29. 2026-10-24reviews6.1krating4.736
  30. 2026-10-25reviews6.1krating4.737
  31. 2026-10-28reviews6.1krating4.737

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Read and change cookies on the sites it can access cookies
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 5

The full permission history for this extension

Version history

  1. Version 4.123.0
  2. Version 4.122.0
  3. Version 4.121.0
Show the remaining 5
  1. Version 4.120.1
  2. Version 4.120.0
  3. Version 4.119.0
  4. Version 4.118.0
  5. Version 4.117.0

What changed recently

  1. Released version 4.123.0 (was 4.122.0)
  2. Package size changed
  3. Released version 4.122.0 (was 4.121.0)
Show the remaining 9
  1. Released version 4.121.0 (was 4.120.1)
  2. Released version 4.120.1 (was 4.120.0)
  3. Released version 4.120.0 (was 4.119.0)
  4. Package size changed
  5. Released version 4.119.0 (was 4.118.0)
  6. Package size changed
  7. Released version 4.118.0 (was 4.117.0)
  8. Package size changed
  9. Released version 4.117.0 (was 4.116.0)

Older entries and the full day by day series are in the app.

The publisher

quillbot. Listed website: quillbot.com.

Like this one

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

  1. Phrasely - ChatGPT Writing Tool Describes nearly the same job, smaller audience 880 users ★ 5.0
  2. Typely – AI Writing Assistant & Grammar Checker Describes nearly the same job, smaller audience 46 users ★ 4.0
  3. Compose Better: AI Writing Assistant - Grammarly alternative! Describes nearly the same job, smaller audience 66 users ★ 5.0
  4. Humanit — AI Writing Assistant Describes nearly the same job, smaller audience 10 users
  5. Linguix: Grammar Checker and AI Writing App Describes nearly the same job, with an established audience 30k users ★ 4.1

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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/iidnbdjijdkbmajdffnidomddglmieko/badge.svg)](https://extops.dev/extensions/iidnbdjijdkbmajdffnidomddglmieko)

HTML

<a href="https://extops.dev/extensions/iidnbdjijdkbmajdffnidomddglmieko"><img src="https://extops.dev/extensions/iidnbdjijdkbmajdffnidomddglmieko/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-28. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built