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Source Code & Font Viewer - HTML, CSS, JS, JSON & XML Formatter

Chrome extension · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 285 users, barely installed. Audience over the last 30 days: +80.

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
285
Rating
5.0 (2 ratings)
Users, last 30 days
+80
Rating, last 30 days
Steady over 30 days
Version
1.14.0
Updated in the store
2026-10-18
Published
2026-04-24
Manifest
V3
Browser access
5 permissions, 4 site patterns

How it has moved

Users
+80 since 01.10
205-620 · 15 readings
2026-10-04: released 1.12.02026-10-08: released 1.13.02026-10-18: released 1.14.0
  1. 2026-10-04254released 1.12.0
  2. 2026-10-08274released 1.13.0
  3. 2026-10-09286
  4. 2026-10-10291
  5. 2026-10-13286
  6. 2026-10-16306
  7. 2026-10-18312released 1.14.0
  8. 2026-10-19355
  9. 2026-10-21399
  10. 2026-10-22589
  11. 2026-10-23617
  12. 2026-10-24620
  13. 2026-10-27489
  14. 2026-10-29285
  15. 2026-10-31285
Rating
unchanged since 01.10
reviewsrating 5.00 · 15 readings
2026-10-04: released 1.12.02026-10-08: released 1.13.02026-10-18: released 1.14.0
  1. 2026-10-04reviews2rating5.00released 1.12.0
  2. 2026-10-08reviews2rating5.00released 1.13.0
  3. 2026-10-09reviews2rating5.00
  4. 2026-10-10reviews2rating5.00
  5. 2026-10-13reviews2rating5.00
  6. 2026-10-16reviews2rating5.00
  7. 2026-10-18reviews2rating5.00released 1.14.0
  8. 2026-10-19reviews2rating5.00
  9. 2026-10-21reviews2rating5.00
  10. 2026-10-22reviews2rating5.00
  11. 2026-10-23reviews2rating5.00
  12. 2026-10-24reviews2rating5.00
  13. 2026-10-27reviews2rating5.00
  14. 2026-10-29reviews2rating5.00
  15. 2026-10-31reviews2rating5.00
Users
+172 since 01.09
111-620 · 30 readings
2026-09-12: released 1.10.02026-09-21: released 1.11.02026-10-04: released 1.12.02026-10-08: released 1.13.02026-10-18: released 1.14.0
  1. 2026-09-01113
  2. 2026-09-02115
  3. 2026-09-03111
  4. 2026-09-04131
  5. 2026-09-06142
  6. 2026-09-07147
  7. 2026-09-08155
  8. 2026-09-10153
  9. 2026-09-13170
  10. 2026-09-16170
  11. 2026-09-20171
  12. 2026-09-21172released 1.11.0
  13. 2026-09-25189
  14. 2026-09-26202
  15. 2026-09-28205
  16. 2026-10-04254released 1.12.0
  17. 2026-10-08274released 1.13.0
  18. 2026-10-09286
  19. 2026-10-10291
  20. 2026-10-13286
  21. 2026-10-16306
  22. 2026-10-18312released 1.14.0
  23. 2026-10-19355
  24. 2026-10-21399
  25. 2026-10-22589
  26. 2026-10-23617
  27. 2026-10-24620
  28. 2026-10-27489
  29. 2026-10-29285
  30. 2026-10-31285
Rating
unchanged since 01.09
reviewsrating 5.00 · 30 readings
2026-09-12: released 1.10.02026-09-21: released 1.11.02026-10-04: released 1.12.02026-10-08: released 1.13.02026-10-18: released 1.14.0
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-07reviews1rating5.00
  7. 2026-09-08reviews1rating5.00
  8. 2026-09-10reviews1rating5.00
  9. 2026-09-13reviews1rating5.00
  10. 2026-09-16reviews2rating5.00
  11. 2026-09-20reviews2rating5.00
  12. 2026-09-21reviews2rating5.00released 1.11.0
  13. 2026-09-25reviews2rating5.00
  14. 2026-09-26reviews2rating5.00
  15. 2026-09-28reviews2rating5.00
  16. 2026-10-04reviews2rating5.00released 1.12.0
  17. 2026-10-08reviews2rating5.00released 1.13.0
  18. 2026-10-09reviews2rating5.00
  19. 2026-10-10reviews2rating5.00
  20. 2026-10-13reviews2rating5.00
  21. 2026-10-16reviews2rating5.00
  22. 2026-10-18reviews2rating5.00released 1.14.0
  23. 2026-10-19reviews2rating5.00
  24. 2026-10-21reviews2rating5.00
  25. 2026-10-22reviews2rating5.00
  26. 2026-10-23reviews2rating5.00
  27. 2026-10-24reviews2rating5.00
  28. 2026-10-27reviews2rating5.00
  29. 2026-10-29reviews2rating5.00
  30. 2026-10-31reviews2rating5.00

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

Every site you visit. This extension can read and change the content of any page you open.

  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2

The full permission history for this extension

Version history

  1. Version 1.14.0
  2. Version 1.13.0
  3. Version 1.12.0
Show the remaining 2
  1. Version 1.11.0 · Asked for more permissions (9, was 8)
  2. Version 1.10.0 · Asked for more permissions (8, was 7)

What changed recently

  1. Released version 1.14.0 (was 1.13.0)
  2. Package size changed
  3. Released version 1.13.0 (was 1.12.0)
Show the remaining 9
  1. Package size changed
  2. Released version 1.12.0 (was 1.11.0)
  3. Package size changed
  4. Asked for more permissions (9, was 8)
  5. Store description rewritten (115 → 114 characters)
  6. Renamed from "Source Code & Font Viewer — HTML, CSS, JS, JSON & XML Formatter" to "Source Code & Font Viewer - HTML, CSS, JS, JSON & XML Formatter"
  7. Released version 1.11.0 (was 1.10.0)
  8. Store badges changed
  9. Package size changed

Older entries and the full day by day series are in the app.

Like this one

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

  1. Code Formatter - JSON, CSS & JavaScript Describes nearly the same job, smaller audience 4k users ★ 3.6
  2. JSON & Code Viewer Describes nearly the same job, smaller audience 260 users ★ 4.8
  3. Font Inspector & Fix Describes nearly the same job, smaller audience 4 users
  4. Pretty HTML | CSS | XML Describes nearly the same job, smaller audience 4k users ★ 3.0
  5. PeekFont Describes nearly the same job, smaller audience 90 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/ninadapabgjafeobaoomggobomaogcdi/badge.svg)](https://extops.dev/extensions/ninadapabgjafeobaoomggobomaogcdi)

HTML

<a href="https://extops.dev/extensions/ninadapabgjafeobaoomggobomaogcdi"><img src="https://extops.dev/extensions/ninadapabgjafeobaoomggobomaogcdi/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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built