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PerfLens

Chrome extension by oluwatosinolamilekan · Productivity · Developer

  • Trader

A Chrome extension in Productivity · Developer with 46 users, barely installed. Audience over the last 30 days: +4.

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
46
Rating
5.0 (5 ratings)
Users, last 30 days
+4
Rating, last 30 days
Steady over 30 days
Version
1.0.3
Updated in the store
2026-05-13
Published
2026-05-04
Manifest
V3
Browser access
3 permissions, 2 site patterns

How it has moved

Users
+4 since 01.10
40-47 · 16 readings
  1. 2026-10-0541
  2. 2026-10-0842
  3. 2026-10-0943
  4. 2026-10-1040
  5. 2026-10-1142
  6. 2026-10-1641
  7. 2026-10-1843
  8. 2026-10-1942
  9. 2026-10-2043
  10. 2026-10-2142
  11. 2026-10-2242
  12. 2026-10-2543
  13. 2026-10-2845
  14. 2026-10-2947
  15. 2026-10-3046
  16. 2026-10-3146
Rating
unchanged since 01.10
reviewsrating 5.00 · 16 readings
  1. 2026-10-05reviews5rating5.00
  2. 2026-10-08reviews5rating5.00
  3. 2026-10-09reviews5rating5.00
  4. 2026-10-10reviews5rating5.00
  5. 2026-10-11reviews5rating5.00
  6. 2026-10-16reviews5rating5.00
  7. 2026-10-18reviews5rating5.00
  8. 2026-10-19reviews5rating5.00
  9. 2026-10-20reviews5rating5.00
  10. 2026-10-21reviews5rating5.00
  11. 2026-10-22reviews5rating5.00
  12. 2026-10-25reviews5rating5.00
  13. 2026-10-28reviews5rating5.00
  14. 2026-10-29reviews5rating5.00
  15. 2026-10-30reviews5rating5.00
  16. 2026-10-31reviews5rating5.00
Users
+13 since 31.08
32-47 · 27 readings
  1. 2026-08-3133
  2. 2026-09-0235
  3. 2026-09-0535
  4. 2026-09-0733
  5. 2026-09-0832
  6. 2026-09-0936
  7. 2026-09-1339
  8. 2026-09-1542
  9. 2026-09-2041
  10. 2026-09-2240
  11. 2026-09-2642
  12. 2026-10-0541
  13. 2026-10-0842
  14. 2026-10-0943
  15. 2026-10-1040
  16. 2026-10-1142
  17. 2026-10-1641
  18. 2026-10-1843
  19. 2026-10-1942
  20. 2026-10-2043
  21. 2026-10-2142
  22. 2026-10-2242
  23. 2026-10-2543
  24. 2026-10-2845
  25. 2026-10-2947
  26. 2026-10-3046
  27. 2026-10-3146
Rating
unchanged since 31.08
reviewsrating 5.00 · 27 readings
  1. 2026-08-31reviews5rating5.00
  2. 2026-09-02reviews5rating5.00
  3. 2026-09-05reviews5rating5.00
  4. 2026-09-07reviews5rating5.00
  5. 2026-09-08reviews5rating5.00
  6. 2026-09-09reviews5rating5.00
  7. 2026-09-13reviews5rating5.00
  8. 2026-09-15reviews5rating5.00
  9. 2026-09-20reviews5rating5.00
  10. 2026-09-22reviews5rating5.00
  11. 2026-09-26reviews5rating5.00
  12. 2026-10-05reviews5rating5.00
  13. 2026-10-08reviews5rating5.00
  14. 2026-10-09reviews5rating5.00
  15. 2026-10-10reviews5rating5.00
  16. 2026-10-11reviews5rating5.00
  17. 2026-10-16reviews5rating5.00
  18. 2026-10-18reviews5rating5.00
  19. 2026-10-19reviews5rating5.00
  20. 2026-10-20reviews5rating5.00
  21. 2026-10-21reviews5rating5.00
  22. 2026-10-22reviews5rating5.00
  23. 2026-10-25reviews5rating5.00
  24. 2026-10-28reviews5rating5.00
  25. 2026-10-29reviews5rating5.00
  26. 2026-10-30reviews5rating5.00
  27. 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.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage

The full permission history for this extension

What changed recently

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

The publisher

oluwatosinolamilekan.

Like this one

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

  1. PerfLens Describes nearly the same job, smaller audience 3 users (last published figure)
  2. PerfLens Describes nearly the same job, smaller audience 3 users (last published figure)
  3. Website Performance Estimator Describes nearly the same job, smaller audience 11 users
  4. sustainability-extension Describes nearly the same job, smaller audience 9 users
  5. Web Experience Analyzer Describes nearly the same job, smaller audience 6 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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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/gkogamlpcnneeficmcdcnnnhobnbebdc"><img src="https://extops.dev/extensions/gkogamlpcnneeficmcdcnnnhobnbebdc/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