Chrome Web Store
3Versions
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What our analysis found

DevBox — Offline JWT Decoder, Base64 Encoder and Hash Toolk…, used by 1,000 people, is not yet reviewed by Extension Auditor. It comes from a trusted publisher and was last updated in September 2026.

DevBox — Offline JWT Decoder, Base64 Encoder and Hash Toolkit

DevBox — Offline JWT Decoder, Base64 Encoder and Hash Toolkit Chrome extension security report

ID: bojikkiigfaghdhhbpogkgaiphcddagm

Supported Languages

🇪🇹Amharic
🇸🇦Arabic
🇧🇩Bengali
🇬🇧British English
🇧🇬Bulgarian
🇪🇸Catalan
🇭🇷Croatian
🇨🇿Czech
🇩🇰Danish
🇳🇱Dutch
🇺🇸English
🇪🇪Estonian
🇵🇭Filipino
🇫🇮Finnish
🇫🇷French
🇩🇪German
🇬🇷Greek
🇮🇳Gujarati
🇮🇱Hebrew
🇮🇳Hindi
🇭🇺Hungarian
🇮🇩Indonesian
🇮🇹Italian
🇯🇵Japanese
🇮🇳Kannada
🇰🇷Korean
🇲🇽Latin American Spanish
🇱🇻Latvian
🇱🇹Lithuanian
🇲🇾Malay
🇮🇳Malayalam
🇮🇳Marathi
🇳🇴Norwegian
🇮🇷Persian
🇵🇱Polish
🇷🇴Romanian
🇷🇺Russian
🇷🇸Serbian
🇸🇰Slovak
🇸🇮Slovenian
🇪🇸Spanish
🇰🇪Swahili
🇸🇪Swedish
🇮🇳Tamil
🇮🇳Telugu
🇹🇭Thai
🇹🇷Turkish
🇺🇦Ukrainian
🇺🇸US English
🇻🇳Vietnamese

Extension Info & Metadata

Status
Active
Version
1.0.2
Size
0.25 MB
Rating
5.0/5
Reviews
2
Users
1,000
Type
Extension
Updated
Sep 28, 2026
Category
Developer tools
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
24extensions
4 no longer listed

Publisher Contextual Analysis

Trusted
Author
zovooneofficial
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
24
Active
20
Obsolete
4
Listed
24
Unlisted
0
Users
17,008

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5

Install growth

Item
Type
Severity
Description
clipboardWrite
Permission
High
This permission allows modification of clipboard content. Rated High because it can inject malicious content into the clipboard, modify copied passwords, and manipulate copied data.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.

About this extension

One popup, five tools. 100% offline — your tokens never leave the browser.

Read the publisher’s full description

Five essential developer tools in one clean popup. Stop pasting sensitive tokens into random online converters. DevBox does everything locally, so your data never touches a server. WHAT IT DOES - Base64: encode and decode text in a click - JWT: inspect and decode JSON Web Tokens instantly - URL: encode and decode URL components safely - Hash: generate hashes for quick checks and comparisons - JSON: format, validate, and minify messy JSON PRIVATE BY DESIGN 100% offline. There is no account, no login, and no tracking. Every conversion runs inside your browser, so your tokens, payloads, and secrets never leave your machine. Permissions: - storage: remembers your preferences and last-used tool between sessions. - contextMenus: adds right-click shortcuts to encode or decode selected text. - activeTab: reads text you select on the current page when you invoke a tool. - clipboardWrite: lets you copy results back to your clipboard in one click. - alarms: schedules lightweight background cleanup tasks. Privacy policy: https://zovo.one/privacy-policy

User reviews

Extension files

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Version
Size
Verdict
Findings
Permhash
1.0.2
Latest
0.25 MBNot scanned—
20fb7fd8abeb359b850238ea9bf1424ff0bec1a96dd21088dbf932c38d5ed553
1.0.1
0.24 MBNot scanned—
20fb7fd8abeb359b850238ea9bf1424ff0bec1a96dd21088dbf932c38d5ed553
1.0.0
0.24 MBNot scanned—
20fb7fd8abeb359b850238ea9bf1424ff0bec1a96dd21088dbf932c38d5ed553
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