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PiiBlocker: Mask & Redact Personal Data (PII) in AI Chats

Chrome extension by piiblocker · Productivity · Tools

  • Established publisher
  • Trader

A Chrome extension in Productivity · Tools with 544 users, barely installed. Audience over the last 30 days: +52.

Specific sites only: 9 match patterns.

What the developer says, and 6 screenshots

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

Users
544
Rating
5.0 (5 ratings)
Users, last 30 days
+52
Rating, last 30 days
Steady over 30 days
Version
1.5.1
Updated in the store
2026-09-17
Published
2026-03-02
Manifest
V3
Browser access
5 permissions, 9 site patterns

How it has moved

Users
+52 since 02.10
492-544 · 16 readings
  1. 2026-10-04516
  2. 2026-10-08521
  3. 2026-10-09516
  4. 2026-10-10520
  5. 2026-10-11505
  6. 2026-10-13499
  7. 2026-10-16505
  8. 2026-10-18510
  9. 2026-10-19519
  10. 2026-10-22531
  11. 2026-10-23528
  12. 2026-10-24534
  13. 2026-10-25533
  14. 2026-10-27542
  15. 2026-10-29544
  16. 2026-10-31544
Rating
unchanged since 02.10
reviewsrating 5.00 · 16 readings
  1. 2026-10-04reviews5rating5.00
  2. 2026-10-08reviews5rating5.00
  3. 2026-10-09reviews5rating5.00
  4. 2026-10-10reviews5rating5.00
  5. 2026-10-11reviews5rating5.00
  6. 2026-10-13reviews5rating5.00
  7. 2026-10-16reviews5rating5.00
  8. 2026-10-18reviews5rating5.00
  9. 2026-10-19reviews5rating5.00
  10. 2026-10-22reviews5rating5.00
  11. 2026-10-23reviews5rating5.00
  12. 2026-10-24reviews5rating5.00
  13. 2026-10-25reviews5rating5.00
  14. 2026-10-27reviews5rating5.00
  15. 2026-10-29reviews5rating5.00
  16. 2026-10-31reviews5rating5.00
Users
+55 since 31.08
463-544 · 31 readings
2026-09-03: released 1.5.02026-09-17: released 1.5.1
  1. 2026-08-31489
  2. 2026-09-02492
  3. 2026-09-04519
  4. 2026-09-05494
  5. 2026-09-06496
  6. 2026-09-07486
  7. 2026-09-08473
  8. 2026-09-10463
  9. 2026-09-15469
  10. 2026-09-16488
  11. 2026-09-20482
  12. 2026-09-22479
  13. 2026-09-25507
  14. 2026-09-26506
  15. 2026-09-28492
  16. 2026-10-04516
  17. 2026-10-08521
  18. 2026-10-09516
  19. 2026-10-10520
  20. 2026-10-11505
  21. 2026-10-13499
  22. 2026-10-16505
  23. 2026-10-18510
  24. 2026-10-19519
  25. 2026-10-22531
  26. 2026-10-23528
  27. 2026-10-24534
  28. 2026-10-25533
  29. 2026-10-27542
  30. 2026-10-29544
  31. 2026-10-31544
Rating
unchanged since 31.08
reviewsrating 5.00 · 31 readings
2026-09-03: released 1.5.02026-09-17: released 1.5.1
  1. 2026-08-31reviews5rating5.00
  2. 2026-09-02reviews5rating5.00
  3. 2026-09-04reviews5rating5.00
  4. 2026-09-05reviews5rating5.00
  5. 2026-09-06reviews5rating5.00
  6. 2026-09-07reviews5rating5.00
  7. 2026-09-08reviews5rating5.00
  8. 2026-09-10reviews5rating5.00
  9. 2026-09-15reviews5rating5.00
  10. 2026-09-16reviews5rating5.00
  11. 2026-09-20reviews5rating5.00
  12. 2026-09-22reviews5rating5.00
  13. 2026-09-25reviews5rating5.00
  14. 2026-09-26reviews5rating5.00
  15. 2026-09-28reviews5rating5.00
  16. 2026-10-04reviews5rating5.00
  17. 2026-10-08reviews5rating5.00
  18. 2026-10-09reviews5rating5.00
  19. 2026-10-10reviews5rating5.00
  20. 2026-10-11reviews5rating5.00
  21. 2026-10-13reviews5rating5.00
  22. 2026-10-16reviews5rating5.00
  23. 2026-10-18reviews5rating5.00
  24. 2026-10-19reviews5rating5.00
  25. 2026-10-22reviews5rating5.00
  26. 2026-10-23reviews5rating5.00
  27. 2026-10-24reviews5rating5.00
  28. 2026-10-25reviews5rating5.00
  29. 2026-10-27reviews5rating5.00
  30. 2026-10-29reviews5rating5.00
  31. 2026-10-31reviews5rating5.00

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

Specific sites only: 9 match patterns.

  • https://chat.openai.com/*
  • https://chatgpt.com/*
  • https://claude.ai/*
Show the remaining 6
  • https://gemini.google.com/*
  • *://www.kimi.com/*
  • *://www.kimi.ai/*
  • *://chat.deepseek.com/*
  • *://grok.com/*
  • *://www.perplexity.ai/*
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
Show the remaining 2

The full permission history for this extension

Version history

  1. Version 1.5.1
  2. Version 1.5.0 · Asked for more permissions (14, was 9)

What changed recently

  1. Package size changed
  2. Store description rewritten (122 → 131 characters)
  3. Renamed from "PiiBlocker : Mask PII in AI Chatbots" to "PiiBlocker: Mask & Redact Personal Data (PII) in AI Chats"
Show the remaining 5
  1. Released version 1.5.1 (was 1.5.0)
  2. Package size changed
  3. Asked for more permissions (14, was 9)
  4. Store description rewritten
  5. Released version 1.5.0 (was 1.4.0)

The publisher

piiblocker. Listed website: piiblock.com.

Like this one

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

  1. Datablur AI — PII Redaction for AI Chats Describes nearly the same job, smaller audience 18 users
  2. LLM Masker - PII & Secret Redactor Describes nearly the same job, smaller audience 10 users
  3. AI Data Shield Describes nearly the same job, smaller audience 2 users (last published figure)
  4. PromptMask Describes nearly the same job, smaller audience 6 users
  5. Scrubly - AI Privacy Shield Describes nearly the same job, smaller audience 8 users ★ 5.0

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

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HTML

<a href="https://extops.dev/extensions/nklghhkmhkmckonncilnaohlihfacoee"><img src="https://extops.dev/extensions/nklghhkmhkmckonncilnaohlihfacoee/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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built