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Border Patrol – CSS Debugger & Element Outliner

Chrome extension by SeaSav · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 376 users, barely installed. Audience over the last 30 days: -39.

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
376
Rating
5.0 (5 ratings)
Users, last 30 days
-39
Rating, last 30 days
Steady over 30 days
Version
1.7.4
Updated in the store
2026-06-04
Published
2025-05-20
Manifest
V3
Browser access
6 permissions, 1 site pattern

How it has moved

Users
-39 since 01.10
376-428 · 19 readings
  1. 2026-10-04402
  2. 2026-10-08421
  3. 2026-10-09414
  4. 2026-10-10412
  5. 2026-10-13397
  6. 2026-10-16400
  7. 2026-10-17397
  8. 2026-10-18402
  9. 2026-10-19400
  10. 2026-10-20408
  11. 2026-10-21411
  12. 2026-10-22408
  13. 2026-10-23422
  14. 2026-10-24428
  15. 2026-10-25416
  16. 2026-10-28390
  17. 2026-10-29380
  18. 2026-10-30376
  19. 2026-10-31376
Rating
unchanged since 01.10
reviewsrating 5.00 · 19 readings
  1. 2026-10-04reviews5rating5.00
  2. 2026-10-08reviews5rating5.00
  3. 2026-10-09reviews5rating5.00
  4. 2026-10-10reviews5rating5.00
  5. 2026-10-13reviews5rating5.00
  6. 2026-10-16reviews5rating5.00
  7. 2026-10-17reviews5rating5.00
  8. 2026-10-18reviews5rating5.00
  9. 2026-10-19reviews5rating5.00
  10. 2026-10-20reviews5rating5.00
  11. 2026-10-21reviews5rating5.00
  12. 2026-10-22reviews5rating5.00
  13. 2026-10-23reviews5rating5.00
  14. 2026-10-24reviews5rating5.00
  15. 2026-10-25reviews5rating5.00
  16. 2026-10-28reviews5rating5.00
  17. 2026-10-29reviews5rating5.00
  18. 2026-10-30reviews5rating5.00
  19. 2026-10-31reviews5rating5.00
Users
-9 since 31.08
376-428 · 32 readings
  1. 2026-08-31385
  2. 2026-09-03395
  3. 2026-09-04390
  4. 2026-09-05392
  5. 2026-09-07387
  6. 2026-09-08382
  7. 2026-09-09389
  8. 2026-09-15400
  9. 2026-09-17416
  10. 2026-09-21418
  11. 2026-09-25408
  12. 2026-09-26412
  13. 2026-09-28415
  14. 2026-10-04402
  15. 2026-10-08421
  16. 2026-10-09414
  17. 2026-10-10412
  18. 2026-10-13397
  19. 2026-10-16400
  20. 2026-10-17397
  21. 2026-10-18402
  22. 2026-10-19400
  23. 2026-10-20408
  24. 2026-10-21411
  25. 2026-10-22408
  26. 2026-10-23422
  27. 2026-10-24428
  28. 2026-10-25416
  29. 2026-10-28390
  30. 2026-10-29380
  31. 2026-10-30376
  32. 2026-10-31376
Rating
unchanged since 31.08
reviewsrating 5.00 · 32 readings
  1. 2026-08-31reviews4rating5.00
  2. 2026-09-03reviews4rating5.00
  3. 2026-09-04reviews5rating5.00
  4. 2026-09-05reviews5rating5.00
  5. 2026-09-07reviews5rating5.00
  6. 2026-09-08reviews5rating5.00
  7. 2026-09-09reviews5rating5.00
  8. 2026-09-15reviews5rating5.00
  9. 2026-09-17reviews5rating5.00
  10. 2026-09-21reviews5rating5.00
  11. 2026-09-25reviews5rating5.00
  12. 2026-09-26reviews5rating5.00
  13. 2026-09-28reviews5rating5.00
  14. 2026-10-04reviews5rating5.00
  15. 2026-10-08reviews5rating5.00
  16. 2026-10-09reviews5rating5.00
  17. 2026-10-10reviews5rating5.00
  18. 2026-10-13reviews5rating5.00
  19. 2026-10-16reviews5rating5.00
  20. 2026-10-17reviews5rating5.00
  21. 2026-10-18reviews5rating5.00
  22. 2026-10-19reviews5rating5.00
  23. 2026-10-20reviews5rating5.00
  24. 2026-10-21reviews5rating5.00
  25. 2026-10-22reviews5rating5.00
  26. 2026-10-23reviews5rating5.00
  27. 2026-10-24reviews5rating5.00
  28. 2026-10-25reviews5rating5.00
  29. 2026-10-28reviews5rating5.00
  30. 2026-10-29reviews5rating5.00
  31. 2026-10-30reviews5rating5.00
  32. 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

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

  • Manage your downloads downloads
  • 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 3

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

SeaSav. Listed website: seasav.ca.

Like this one

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

  1. Space Inspector Describes nearly the same job, smaller audience 9 users
  2. Pixel Gap Inspector Describes nearly the same job, smaller audience 13 users
  3. UI Tools Describes nearly the same job, smaller audience 36 users
  4. CSS Spacing Inspector Describes nearly the same job, smaller audience 216 users
  5. Box Trace Describes nearly the same job, smaller audience 3 users (last published figure)

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/fdkdknepjdabfaihhdljlbbcjiahmkkd/badge.svg)](https://extops.dev/extensions/fdkdknepjdabfaihhdljlbbcjiahmkkd)

HTML

<a href="https://extops.dev/extensions/fdkdknepjdabfaihhdljlbbcjiahmkkd"><img src="https://extops.dev/extensions/fdkdknepjdabfaihhdljlbbcjiahmkkd/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 2026-10-30. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built