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Pixel Span

Chrome extension by Jack Seigerman · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 27 users, barely installed. Audience over the last 30 days: +11.

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

What the developer says, and 3 screenshots

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

Users
27
Rating
5.0 (3 ratings)
Users, last 30 days
+11
Rating, last 30 days
Steady over 30 days
Version
2.0.0
Updated in the store
2026-07-04
Published
2026-06-09
Manifest
V3
Browser access
2 permissions

How it has moved

Users
+11 since 02.10
16-27 · 14 readings
  1. 2026-10-0417
  2. 2026-10-0920
  3. 2026-10-1018
  4. 2026-10-1319
  5. 2026-10-1621
  6. 2026-10-1722
  7. 2026-10-1824
  8. 2026-10-1923
  9. 2026-10-2124
  10. 2026-10-2426
  11. 2026-10-2524
  12. 2026-10-2825
  13. 2026-10-3026
  14. 2026-11-0127
Rating
unchanged since 02.10
reviewsrating 5.00 · 14 readings
  1. 2026-10-04reviews2rating5.00
  2. 2026-10-09reviews2rating5.00
  3. 2026-10-10reviews2rating5.00
  4. 2026-10-13reviews2rating5.00
  5. 2026-10-16reviews2rating5.00
  6. 2026-10-17reviews3rating5.00
  7. 2026-10-18reviews3rating5.00
  8. 2026-10-19reviews3rating5.00
  9. 2026-10-21reviews3rating5.00
  10. 2026-10-24reviews3rating5.00
  11. 2026-10-25reviews3rating5.00
  12. 2026-10-28reviews3rating5.00
  13. 2026-10-30reviews3rating5.00
  14. 2026-11-01reviews3rating5.00
Users
+13 since 01.09
14-27 · 24 readings
2026-09-30: gained the good publisher record badge
  1. 2026-09-0114
  2. 2026-09-0215
  3. 2026-09-0516
  4. 2026-09-0615
  5. 2026-09-0914
  6. 2026-09-1316
  7. 2026-09-1518
  8. 2026-09-1716
  9. 2026-09-2214
  10. 2026-09-2516
  11. 2026-10-0417
  12. 2026-10-0920
  13. 2026-10-1018
  14. 2026-10-1319
  15. 2026-10-1621
  16. 2026-10-1722
  17. 2026-10-1824
  18. 2026-10-1923
  19. 2026-10-2124
  20. 2026-10-2426
  21. 2026-10-2524
  22. 2026-10-2825
  23. 2026-10-3026
  24. 2026-11-0127
Rating
unchanged since 01.09
reviewsrating 5.00 · 24 readings
2026-09-30: gained the good publisher record badge
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-05reviews2rating5.00
  4. 2026-09-06reviews2rating5.00
  5. 2026-09-09reviews2rating5.00
  6. 2026-09-13reviews2rating5.00
  7. 2026-09-15reviews2rating5.00
  8. 2026-09-17reviews2rating5.00
  9. 2026-09-22reviews2rating5.00
  10. 2026-09-25reviews2rating5.00
  11. 2026-10-04reviews2rating5.00
  12. 2026-10-09reviews2rating5.00
  13. 2026-10-10reviews2rating5.00
  14. 2026-10-13reviews2rating5.00
  15. 2026-10-16reviews2rating5.00
  16. 2026-10-17reviews3rating5.00
  17. 2026-10-18reviews3rating5.00
  18. 2026-10-19reviews3rating5.00
  19. 2026-10-21reviews3rating5.00
  20. 2026-10-24reviews3rating5.00
  21. 2026-10-25reviews3rating5.00
  22. 2026-10-28reviews3rating5.00
  23. 2026-10-30reviews3rating5.00
  24. 2026-11-01reviews3rating5.00

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

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

  1. Gained the Established publisher badge

The publisher

Jack Seigerman. Listed website: jackseigerman.com.

Like this one

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

  1. SpacingJS Describes nearly the same job, smaller audience 2k users ★ 4.3
  2. Gappy Describes nearly the same job, smaller audience 4 users ★ 5.0
  3. Pixel Perfect Extension Describes nearly the same job, smaller audience 445 users ★ 5.0
  4. Pixel Ruler Describes nearly the same job, smaller audience 20 users ★ 5.0
  5. Spacing Inspector Describes nearly the same job, smaller audience 933 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/ifcelgcilmmldoglphjaflakbpbdbapp/badge.svg)](https://extops.dev/extensions/ifcelgcilmmldoglphjaflakbpbdbapp)

HTML

<a href="https://extops.dev/extensions/ifcelgcilmmldoglphjaflakbpbdbapp"><img src="https://extops.dev/extensions/ifcelgcilmmldoglphjaflakbpbdbapp/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 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built