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

Chrome extension · Productivity · Developer

A Chrome extension in Productivity · Developer with 170 users, barely installed.

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
170
Rating
5.0 (1 ratings)
Users, last 15 days
+57
Rating, last 30 days
Not watched long enough to say
Version
1.10.0
Updated in the store
2026-09-14
Published
2026-04-24
Manifest
V3
Browser access
5 permissions, 3 site patterns

How it has moved

Users
+57 since 01.09
111-170 · 10 readings
2026-09-12: released 1.10.0
  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. 2026-09-15170
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
2026-09-12: released 1.10.0
  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. 2026-09-15reviews1rating5.00
Users
+57 since 01.09
111-170 · 10 readings
2026-09-12: released 1.10.0
  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. 2026-09-15170
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
2026-09-12: released 1.10.0
  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. 2026-09-15reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing 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

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
  • Add items to the right-click menu contextMenus
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.10.0 · Asked for more permissions (8, was 7)

What changed recently

  1. Package size changed
  2. Asked for more permissions (8, was 7)
  3. Store description rewritten
Show the remaining 1
  1. Released version 1.10.0 (was 1.9.0)

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 ★ 3.7
  2. JSON & Code Viewer Describes nearly the same job, smaller audience 290 users ★ 4.8
  3. Source Code Viewer Describes nearly the same job, smaller audience 1k users ★ 5.0
  4. Pretty HTML | CSS | XML Describes nearly the same job, smaller audience 4k users ★ 3.0
  5. Font Inspector & Fix Describes nearly the same job, smaller audience 4 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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

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.