Ext Ops Panel
Open the app

PerfLens

Chrome extension by oluwatosinolamilekan · Productivity · Developer

  • Trader

A Chrome extension in Productivity · Developer with 36 users, barely installed.

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
36
Rating
5.0 (5 ratings)
Users, last 13 days
+3
Rating, last 30 days
Not watched long enough to say
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
+3 since 31.08
32-36 · 7 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. 2026-09-1236
Rating
unchanged since 31.08
reviewsrating 5.00 · 7 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. 2026-09-12reviews5rating5.00
Users
+3 since 31.08
32-36 · 7 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. 2026-09-1236
Rating
unchanged since 31.08
reviewsrating 5.00 · 7 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. 2026-09-12reviews5rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing 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

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. WebPerf Labs – Web Performance Analyzer Describes nearly the same job, smaller audience 162 users ★ 5.0
  2. PerfLens Describes nearly the same job 0 users
  3. Page Autopsy - Analyze page performance Describes nearly the same job, smaller audience 6 users
  4. Website Performance Estimator Describes nearly the same job, smaller audience 12 users
  5. sustainability-extension Describes nearly the same job, smaller audience 8 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?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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.