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Pixel Ruler Studio – Web Page Ruler

Chrome extension by kalen · Productivity · Developer

A Chrome extension in Productivity · Developer with 4 users, barely installed.

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

What the developer says, and 5 screenshots

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

Users
4
Rating
not rated yet
Users, last 15 days
unchanged
Version
1.0.0
Updated in the store
2026-08-11
Published
2026-08-11
Manifest
V3
Browser access
3 permissions

How it has moved

Users
unchanged since 01.09
4-5 · 8 readings
  1. 2026-09-014
  2. 2026-09-025
  3. 2026-09-054
  4. 2026-09-065
  5. 2026-09-074
  6. 2026-09-085
  7. 2026-09-104
  8. 2026-09-154
Users
unchanged since 01.09
4-5 · 8 readings
  1. 2026-09-014
  2. 2026-09-025
  3. 2026-09-054
  4. 2026-09-065
  5. 2026-09-074
  6. 2026-09-085
  7. 2026-09-104
  8. 2026-09-154

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.

  • 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

kalen publishes 9 listings we track, 29 users between them.

  1. Draftstead – Offline Code Editor kalen · Productivity · Developer · published 2026-08-15 4 users
  2. Extension Deck kalen · Productivity · Developer · published 2026-08-11 3 users (last published figure)
  3. Bookmark Grove – Bookmark Side Panel kalen · Productivity · Tools · published 2026-08-17 3 users
Show 5 more from this publisher
  1. Session Harbor – Tab Session Recovery kalen · Productivity · Tools · published 2026-08-17 3 users (last published figure)
  2. Link Palette – Multi-Link Actions kalen · Productivity · Tools · published 2026-08-17 3 users
  3. Cookie Ledger – Local Cookie Debugger kalen · Productivity · Developer · published 2026-08-17 3 users (last published figure)
  4. Window Weave – Window Layout Manager kalen · Productivity · Tools · published 2026-08-17 3 users (last published figure)
  5. Style Lens kalen · Productivity · Developer · published 2026-08-11 3 users

Like this one

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

  1. Pixel Ruler — Measure Pixels, Distance & Element Size on Any Page Describes nearly the same job, smaller audience 333 users
  2. PixelRuler Describes nearly the same job, smaller audience 8 users
  3. RulerFlow – Page Ruler Describes nearly the same job, smaller audience 1 users (last published figure)
  4. Chrome Ruler Describes nearly the same job, smaller audience 17 users
  5. Pixel Ruler Describes nearly the same job, smaller audience 20 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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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.