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MM Ruler

Chrome extension · Productivity · Tools

A Chrome extension in Productivity · Tools with 50 users, barely installed. Audience over the last 30 days: +7.

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

What the developer says, and 1 screenshot

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

Users
50
Rating
4.3 (3 ratings)
Users, last 30 days
+7
Rating, last 30 days
Steady over 30 days
Version
1.0.3
Updated in the store
2026-08-24
Published
2025-10-12
Manifest
V3
Browser access
2 permissions

How it has moved

Users
+7 since 30.09
43-51 · 14 readings
  1. 2026-10-0449
  2. 2026-10-0846
  3. 2026-10-0948
  4. 2026-10-1051
  5. 2026-10-1350
  6. 2026-10-1651
  7. 2026-10-1848
  8. 2026-10-2149
  9. 2026-10-2247
  10. 2026-10-2348
  11. 2026-10-2449
  12. 2026-10-2751
  13. 2026-10-2950
  14. 2026-10-3050
Rating
unchanged since 30.09
reviewsrating 4.33 · 14 readings
  1. 2026-10-04reviews3rating4.33
  2. 2026-10-08reviews3rating4.33
  3. 2026-10-09reviews3rating4.33
  4. 2026-10-10reviews3rating4.33
  5. 2026-10-13reviews3rating4.33
  6. 2026-10-16reviews3rating4.33
  7. 2026-10-18reviews3rating4.33
  8. 2026-10-21reviews3rating4.33
  9. 2026-10-22reviews3rating4.33
  10. 2026-10-23reviews3rating4.33
  11. 2026-10-24reviews3rating4.33
  12. 2026-10-27reviews3rating4.33
  13. 2026-10-29reviews3rating4.33
  14. 2026-10-30reviews3rating4.33
Users
+9 since 31.08
40-51 · 25 readings
  1. 2026-08-3141
  2. 2026-09-0243
  3. 2026-09-0442
  4. 2026-09-0740
  5. 2026-09-0940
  6. 2026-09-1541
  7. 2026-09-1643
  8. 2026-09-2044
  9. 2026-09-2145
  10. 2026-09-2544
  11. 2026-09-2843
  12. 2026-10-0449
  13. 2026-10-0846
  14. 2026-10-0948
  15. 2026-10-1051
  16. 2026-10-1350
  17. 2026-10-1651
  18. 2026-10-1848
  19. 2026-10-2149
  20. 2026-10-2247
  21. 2026-10-2348
  22. 2026-10-2449
  23. 2026-10-2751
  24. 2026-10-2950
  25. 2026-10-3050
Rating
unchanged since 31.08
reviewsrating 4.33 · 25 readings
  1. 2026-08-31reviews3rating4.33
  2. 2026-09-02reviews3rating4.33
  3. 2026-09-04reviews3rating4.33
  4. 2026-09-07reviews3rating4.33
  5. 2026-09-09reviews3rating4.33
  6. 2026-09-15reviews3rating4.33
  7. 2026-09-16reviews3rating4.33
  8. 2026-09-20reviews3rating4.33
  9. 2026-09-21reviews3rating4.33
  10. 2026-09-25reviews3rating4.33
  11. 2026-09-28reviews3rating4.33
  12. 2026-10-04reviews3rating4.33
  13. 2026-10-08reviews3rating4.33
  14. 2026-10-09reviews3rating4.33
  15. 2026-10-10reviews3rating4.33
  16. 2026-10-13reviews3rating4.33
  17. 2026-10-16reviews3rating4.33
  18. 2026-10-18reviews3rating4.33
  19. 2026-10-21reviews3rating4.33
  20. 2026-10-22reviews3rating4.33
  21. 2026-10-23reviews3rating4.33
  22. 2026-10-24reviews3rating4.33
  23. 2026-10-27reviews3rating4.33
  24. 2026-10-29reviews3rating4.33
  25. 2026-10-30reviews3rating4.33

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

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

The full permission history for this extension

What changed recently

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

Like this one

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

  1. MeasureIt Pro Describes nearly the same job, smaller audience 12 users
  2. Measure-it Describes nearly the same job, with an established audience 70k users ★ 3.5
  3. Simple Ruler Beta Describes nearly the same job, smaller audience 4k users ★ 2.8
  4. UI Ruler - Measure & Design Describes nearly the same job, smaller audience 7 users ★ 5.0
  5. Web Ruler Describes nearly the same job, smaller audience 34 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.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built