DevBox — Offline JWT Decoder, Base64 Encoder and Hash Toolkit
Chrome extension by zovooneofficial · Productivity · Developer
A Chrome extension in Productivity · Developer with 2 000 users, a small but real audience. Audience over the last 30 days: +1 000.
No site access is declared in the manifest, so it cannot read the pages you open on its own.
What the developer says, and 4 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 2 000
- Users, last 30 days
- +1 000 (the store rounds this count to 1 000, so it moves only between steps)
- Rating, last 30 days
- Steady over 30 days
- Version
- 1.0.2
- Updated in the store
- 2026-09-28
- Published
- 2026-07-23
- Manifest
- V3
- Browser access
- 5 permissions
How it has moved
- 2026-10-082k
- 2026-10-091k
- 2026-10-202k
- 2026-11-022k
- 2026-10-08reviews2
- 2026-10-09reviews2
- 2026-10-20reviews2
- 2026-11-02reviews2
- 2026-08-310
- 2026-09-028released 1.0.1
- 2026-09-069
- 2026-09-106
- 2026-09-130
- 2026-09-20542
- 2026-09-22695
- 2026-09-251k
- 2026-10-082k
- 2026-10-091k
- 2026-10-202k
- 2026-11-022k
- 2026-08-31reviews2
- 2026-09-02reviews2released 1.0.1
- 2026-09-06reviews2
- 2026-09-10reviews2
- 2026-09-13reviews2
- 2026-09-20reviews2
- 2026-09-22reviews2
- 2026-09-25reviews2
- 2026-10-08reviews2
- 2026-10-09reviews2
- 2026-10-20reviews2
- 2026-11-02reviews2
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.
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Act on the current tab, but only after you click it
activeTab -
Schedule work to run later
alarms -
Put data on your clipboard
clipboardWrite
Show the remaining 2
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Add items to the right-click menu
contextMenus -
Store data in your browser
storage
Version history
- Version 1.0.2
- Version 1.0.1
What changed recently
- Package size changed
- Released version 1.0.2 (was 1.0.1)
- Package size changed
Show the remaining 2
- Renamed from "DevBox — Base64, JWT, URL, Hash, JSON" to "DevBox — Offline JWT Decoder, Base64 Encoder and Hash Toolkit"
- Released version 1.0.1 (was 1.0.0)
The publisher
zovooneofficial publishes 20 listings we track, 34k users between them.
-
Night Editor Theme — Dark Mode for Docs 2k users
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TLDR Nano 2k users
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Net Profit for eBay Sellers 2k users
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Sticky Notes — Pin to Any Webpage and Search Everything You Wrote 2k users
-
TreeSide - Vertical Tabs in Chrome's Side Panel 2k users
-
TrustGrade — Amazon Review Trust A–F Badge 2k users
-
Color-Blindness Simulator + Corrector — On-Page Accessibility Color Filter 2k users
-
Ghost Job & Stale Listing Flag 2k users
Like this one
Listings the catalog judges closest in what they say they do.
-
DevBox — Base64, JWT, URL, Hash, JSON 2k users
-
JWT Decoder, Base64 & URL Encode/Decode, JSON Formatter, Hash Generator 318 users
-
DevTools Decoder 32 users
-
Dev Toolkit 29 users
-
Hash & Encode Tool 9 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.
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Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.
Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-20. We publish no contact details for extension developers.