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Just JSON Viewer

Chrome extension by HeroTofu · Productivity · Developer

  • Trader

A Chrome extension in Productivity · Developer with 567 users, barely installed. Audience over the last 30 days: +9.

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

What the developer says, and 5 screenshots

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

Users
567
Rating
5.0 (3 ratings)
Users, last 30 days
+9
Rating, last 30 days
Steady over 30 days
Version
1.0.3
Updated in the store
2023-04-03
Published
2023-03-28
Manifest
V3
Browser access
3 permissions

How it has moved

Users
+9 since 04.10
558-737 · 19 readings
  1. 2026-10-05579
  2. 2026-10-08574
  3. 2026-10-10572
  4. 2026-10-11576
  5. 2026-10-13585
  6. 2026-10-16587
  7. 2026-10-18590
  8. 2026-10-19587
  9. 2026-10-20618
  10. 2026-10-21698
  11. 2026-10-22737
  12. 2026-10-23731
  13. 2026-10-24732
  14. 2026-10-25728
  15. 2026-10-28646
  16. 2026-10-29579
  17. 2026-10-30581
  18. 2026-11-01567
  19. 2026-11-03567
Rating
unchanged since 04.10
reviewsrating 5.00 · 19 readings
  1. 2026-10-05reviews3rating5.00
  2. 2026-10-08reviews3rating5.00
  3. 2026-10-10reviews3rating5.00
  4. 2026-10-11reviews3rating5.00
  5. 2026-10-13reviews3rating5.00
  6. 2026-10-16reviews3rating5.00
  7. 2026-10-18reviews3rating5.00
  8. 2026-10-19reviews3rating5.00
  9. 2026-10-20reviews3rating5.00
  10. 2026-10-21reviews3rating5.00
  11. 2026-10-22reviews3rating5.00
  12. 2026-10-23reviews3rating5.00
  13. 2026-10-24reviews3rating5.00
  14. 2026-10-25reviews3rating5.00
  15. 2026-10-28reviews3rating5.00
  16. 2026-10-29reviews3rating5.00
  17. 2026-10-30reviews3rating5.00
  18. 2026-11-01reviews3rating5.00
  19. 2026-11-03reviews3rating5.00
Users
+41 since 01.09
526-737 · 33 readings
  1. 2026-09-01526
  2. 2026-09-03538
  3. 2026-09-05539
  4. 2026-09-07537
  5. 2026-09-08536
  6. 2026-09-09533
  7. 2026-09-10536
  8. 2026-09-13543
  9. 2026-09-16546
  10. 2026-09-20548
  11. 2026-09-22553
  12. 2026-09-25563
  13. 2026-09-26560
  14. 2026-09-28558
  15. 2026-10-05579
  16. 2026-10-08574
  17. 2026-10-10572
  18. 2026-10-11576
  19. 2026-10-13585
  20. 2026-10-16587
  21. 2026-10-18590
  22. 2026-10-19587
  23. 2026-10-20618
  24. 2026-10-21698
  25. 2026-10-22737
  26. 2026-10-23731
  27. 2026-10-24732
  28. 2026-10-25728
  29. 2026-10-28646
  30. 2026-10-29579
  31. 2026-10-30581
  32. 2026-11-01567
  33. 2026-11-03567
Rating
unchanged since 01.09
reviewsrating 5.00 · 33 readings
  1. 2026-09-01reviews3rating5.00
  2. 2026-09-03reviews3rating5.00
  3. 2026-09-05reviews3rating5.00
  4. 2026-09-07reviews3rating5.00
  5. 2026-09-08reviews3rating5.00
  6. 2026-09-09reviews3rating5.00
  7. 2026-09-10reviews3rating5.00
  8. 2026-09-13reviews3rating5.00
  9. 2026-09-16reviews3rating5.00
  10. 2026-09-20reviews3rating5.00
  11. 2026-09-22reviews3rating5.00
  12. 2026-09-25reviews3rating5.00
  13. 2026-09-26reviews3rating5.00
  14. 2026-09-28reviews3rating5.00
  15. 2026-10-05reviews3rating5.00
  16. 2026-10-08reviews3rating5.00
  17. 2026-10-10reviews3rating5.00
  18. 2026-10-11reviews3rating5.00
  19. 2026-10-13reviews3rating5.00
  20. 2026-10-16reviews3rating5.00
  21. 2026-10-18reviews3rating5.00
  22. 2026-10-19reviews3rating5.00
  23. 2026-10-20reviews3rating5.00
  24. 2026-10-21reviews3rating5.00
  25. 2026-10-22reviews3rating5.00
  26. 2026-10-23reviews3rating5.00
  27. 2026-10-24reviews3rating5.00
  28. 2026-10-25reviews3rating5.00
  29. 2026-10-28reviews3rating5.00
  30. 2026-10-29reviews3rating5.00
  31. 2026-10-30reviews3rating5.00
  32. 2026-11-01reviews3rating5.00
  33. 2026-11-03reviews3rating5.00

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
  • Add items to the right-click menu contextMenus

The full permission history for this extension

What changed recently

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

The publisher

HeroTofu publishes 6 listings we track, 4k users between them. Listed website: herotofu.com.

  1. Just Color Picker HeroTofu · Productivity · Developer · published 2023-04-03 3k users ★ 3.8
  2. Just SERP Preview HeroTofu · Productivity · Developer · published 2023-04-14 446 users ★ 5.0
  3. Just IP Address HeroTofu · Productivity · Developer · published 2023-03-17 90 users
Show 2 more from this publisher
  1. Just Cookies HeroTofu · Productivity · Developer · published 2023-03-30 22 users
  2. Just UTM Builder HeroTofu · Productivity · Workflow · published 2023-03-22 13 users

Like this one

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

  1. Simple JSON Formatter Describes nearly the same job, smaller audience 5 users ★ 5.0
  2. JSON Viewer & Formatter for Chrome Describes nearly the same job, smaller audience 5 users
  3. Plain JSON — Fast Viewer, No Tracking Describes nearly the same job, smaller audience 2 users (last published figure)
  4. JSON Formatter by Code Architecture Describes nearly the same job, smaller audience 7 users ★ 5.0
  5. ALPATARO's JSON Formatter Describes nearly the same job, smaller audience 6 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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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/hpmmjcpbalflfgmgloddnkeibocfdjcn/badge.svg)](https://extops.dev/extensions/hpmmjcpbalflfgmgloddnkeibocfdjcn)

HTML

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