Ext Ops Panel
Open dashboard

JSON Editor

Chrome extension by SSEM DEV · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 42 users, barely installed. Audience over the last 30 days: +2.

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
42
Rating
5.0 (2 ratings)
Users, last 30 days
+2
Rating, last 30 days
Steady over 30 days
Version
2026.9.30
Updated in the store
2026-09-30
Published
2025-11-19
Manifest
V3
Browser access
1 permission

How it has moved

Users
+2 since 04.10
34-45 · 16 readings
  1. 2026-10-0440
  2. 2026-10-0843
  3. 2026-10-1045
  4. 2026-10-1144
  5. 2026-10-1338
  6. 2026-10-1637
  7. 2026-10-1738
  8. 2026-10-1839
  9. 2026-10-1938
  10. 2026-10-2136
  11. 2026-10-2234
  12. 2026-10-2341
  13. 2026-10-2543
  14. 2026-10-2941
  15. 2026-11-0142
  16. 2026-11-0342
Rating
unchanged since 04.10
reviewsrating 5.00 · 16 readings
  1. 2026-10-04reviews2rating5.00
  2. 2026-10-08reviews2rating5.00
  3. 2026-10-10reviews2rating5.00
  4. 2026-10-11reviews2rating5.00
  5. 2026-10-13reviews2rating5.00
  6. 2026-10-16reviews2rating5.00
  7. 2026-10-17reviews2rating5.00
  8. 2026-10-18reviews2rating5.00
  9. 2026-10-19reviews2rating5.00
  10. 2026-10-21reviews2rating5.00
  11. 2026-10-22reviews2rating5.00
  12. 2026-10-23reviews2rating5.00
  13. 2026-10-25reviews2rating5.00
  14. 2026-10-29reviews2rating5.00
  15. 2026-11-01reviews2rating5.00
  16. 2026-11-03reviews2rating5.00
Users
+9 since 31.08
31-45 · 30 readings
2026-09-30: released 2026.9.302026-09-30: gained the good publisher record badge
  1. 2026-08-3133
  2. 2026-09-0236
  3. 2026-09-0434
  4. 2026-09-0536
  5. 2026-09-0637
  6. 2026-09-0736
  7. 2026-09-0837
  8. 2026-09-0936
  9. 2026-09-1339
  10. 2026-09-1536
  11. 2026-09-1735
  12. 2026-09-2034
  13. 2026-09-2733
  14. 2026-09-2831
  15. 2026-10-0440
  16. 2026-10-0843
  17. 2026-10-1045
  18. 2026-10-1144
  19. 2026-10-1338
  20. 2026-10-1637
  21. 2026-10-1738
  22. 2026-10-1839
  23. 2026-10-1938
  24. 2026-10-2136
  25. 2026-10-2234
  26. 2026-10-2341
  27. 2026-10-2543
  28. 2026-10-2941
  29. 2026-11-0142
  30. 2026-11-0342
Rating
unchanged since 31.08
reviewsrating 5.00 · 30 readings
2026-09-30: released 2026.9.302026-09-30: gained the good publisher record badge
  1. 2026-08-31reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00
  4. 2026-09-05reviews2rating5.00
  5. 2026-09-06reviews2rating5.00
  6. 2026-09-07reviews2rating5.00
  7. 2026-09-08reviews2rating5.00
  8. 2026-09-09reviews2rating5.00
  9. 2026-09-13reviews2rating5.00
  10. 2026-09-15reviews2rating5.00
  11. 2026-09-17reviews2rating5.00
  12. 2026-09-20reviews2rating5.00
  13. 2026-09-27reviews2rating5.00
  14. 2026-09-28reviews2rating5.00
  15. 2026-10-04reviews2rating5.00
  16. 2026-10-08reviews2rating5.00
  17. 2026-10-10reviews2rating5.00
  18. 2026-10-11reviews2rating5.00
  19. 2026-10-13reviews2rating5.00
  20. 2026-10-16reviews2rating5.00
  21. 2026-10-17reviews2rating5.00
  22. 2026-10-18reviews2rating5.00
  23. 2026-10-19reviews2rating5.00
  24. 2026-10-21reviews2rating5.00
  25. 2026-10-22reviews2rating5.00
  26. 2026-10-23reviews2rating5.00
  27. 2026-10-25reviews2rating5.00
  28. 2026-10-29reviews2rating5.00
  29. 2026-11-01reviews2rating5.00
  30. 2026-11-03reviews2rating5.00

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.

  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 2026.9.30

What changed recently

  1. Gained the Established publisher badge
  2. Released version 2026.9.30 (was 2025.11.19)

The publisher

SSEM DEV publishes 2 listings we track, 113 users between them. Listed website: levelupsoft.com.

  1. SSEM Markdown Editor SSEM DEV · Productivity · Developer · published 2026-02-06 71 users ★ 5.0

Like this one

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

  1. JSON-Helper Describes nearly the same job, smaller audience 9 users
  2. JSONView Describes nearly the same job, smaller audience 2k users ★ 4.6
  3. CleanJSON — Offline JSON Viewer & Formatter Describes nearly the same job, smaller audience 2k users ★ 5.0
  4. Json Tools Extension Describes nearly the same job, smaller audience 4 users
  5. JSON Formatter Pro Describes nearly the same job, smaller audience 2 users (last published figure)

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.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

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

Connect it in a minute See what the panel does
Add a badge to your README or site

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/ondjjjglbjcchnpggajcmnohacjohmjo/badge.svg)](https://extops.dev/extensions/ondjjjglbjcchnpggajcmnohacjohmjo)

HTML

<a href="https://extops.dev/extensions/ondjjjglbjcchnpggajcmnohacjohmjo"><img src="https://extops.dev/extensions/ondjjjglbjcchnpggajcmnohacjohmjo/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