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CrOSPerf - Chrome OS Performance

Chrome Web Store listing by Daru

A Chrome extension with 30 000 users, an established extension.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

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

Users
30 000
Rating
4.6 (17 ratings)
Users, last 16 days
+20k
Rating, last 30 days
Not watched long enough to say
Version
0.1.19
Updated in the store
2022-12-06
Published
2017-07-12
Manifest
V2
Browser access
4 permissions

How it has moved

Users
+20k since 31.08
0-30k · 6 readings
  1. 2026-08-3110k
  2. 2026-09-0220k
  3. 2026-09-0430k
  4. 2026-09-0830k
  5. 2026-09-130
  6. 2026-09-1530k
Rating
unchanged since 31.08
reviewsrating 4.59 · 6 readings
  1. 2026-08-31reviews17rating4.59
  2. 2026-09-02reviews17rating4.59
  3. 2026-09-04reviews17rating4.59
  4. 2026-09-08reviews17rating4.59
  5. 2026-09-13reviews17rating4.59
  6. 2026-09-15reviews17rating4.59
Users
+20k since 31.08
0-30k · 6 readings
  1. 2026-08-3110k
  2. 2026-09-0220k
  3. 2026-09-0430k
  4. 2026-09-0830k
  5. 2026-09-130
  6. 2026-09-1530k
Rating
unchanged since 31.08
reviewsrating 4.59 · 6 readings
  1. 2026-08-31reviews17rating4.59
  2. 2026-09-02reviews17rating4.59
  3. 2026-09-04reviews17rating4.59
  4. 2026-09-08reviews17rating4.59
  5. 2026-09-13reviews17rating4.59
  6. 2026-09-15reviews17rating4.59

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Read your processor details system.cpu
  • Read how much memory your device has system.memory
  • Declares system.network
Show the remaining 1
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

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

The publisher

Daru publishes 5 listings we track, 32k users between them.

  1. ViewPDF Daru · published 2018-03-09 1k users ★ 4.0
  2. Caret Mod Daru · published 2017-06-29 920 users ★ 4.8
  3. Text Mod Daru · published 2017-10-11 95 users ★ 4.2
Show 1 more from this publisher
  1. CaptureIT Daru · published 2018-10-05 6 users

Like this one

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

  1. Cog - System Info Viewer Describes nearly the same job, with a large installed audience 100k users ★ 4.5
  2. Hardware Info & Monitor Utility for ChromeOS Describes nearly the same job, smaller audience 314 users
  3. System Monitor for CPU / Memory Describes nearly the same job, smaller audience 3k users ★ 4.6
  4. CPU and Memory Performance Monitor Describes nearly the same job, smaller audience 9k users ★ 4.1
  5. CrosManager - A Web-based System Monitor Describes nearly the same job, smaller audience 352 users ★ 4.7

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?

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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.