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QubitTool - Developer Tools & JSON

Chrome extension by crackcosmas · Productivity · Developer

A Chrome extension in Productivity · Developer with 16 users, barely installed.

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
16
Rating
not rated yet
Users, last 15 days
+1
Version
2.1.3
Updated in the store
2026-05-17
Published
2026-01-11
Manifest
V3
Browser access
1 permission

How it has moved

Users
+1 since 01.09
14-16 · 5 readings
  1. 2026-09-0115
  2. 2026-09-0316
  3. 2026-09-0616
  4. 2026-09-1014
  5. 2026-09-1516
Users
+1 since 01.09
14-16 · 5 readings
  1. 2026-09-0115
  2. 2026-09-0316
  3. 2026-09-0616
  4. 2026-09-1014
  5. 2026-09-1516

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

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

What changed recently

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

The publisher

crackcosmas publishes 5 listings we track, 113 users between them. Listed website: qubittool.com.

  1. JSON Viewer, Formatter & Code Generator crackcosmas · Productivity · Developer · published 2026-01-13 46 users
  2. Full Page Screenshot & Screen Capture crackcosmas · Productivity · Tools · published 2026-05-16 28 users
  3. QuickMark - New Tab Bookmark Manager crackcosmas · Productivity · Tools · published 2025-05-31 13 users
Show 1 more from this publisher
  1. Clipboard History Pro - Smart Copy & Paste crackcosmas · Productivity · Tools · published 2026-04-27 10 users

Like this one

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

  1. krri.sh Developer Tools Describes nearly the same job, smaller audience 5 users ★ 5.0
  2. QwickDev - Developer Tools Describes nearly the same job, smaller audience 6 users
  3. TinkrKit Describes nearly the same job, smaller audience 3 users
  4. DevHelper - Developer Toolbox Describes nearly the same job, smaller audience 12 users ★ 5.0
  5. DevTools Describes nearly the same job, smaller audience 182 users ★ 1.0

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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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.