Developer Toolbox
Developer Toolbox puts 21 small developer tools in one app: format JSON, decode a token, test a regular expression, generate a password, convert a colour, make a QR code. Everything runs on your device, so the text you paste never leaves it.
Who it is for
- Developers and testers who reach for an online "JSON formatter" or "Base64 decoder" several times a day and would rather not paste work data into a website.
- Students learning what a JWT, a hash or a Unix timestamp looks like.
- Anyone who needs a quick conversion without opening an editor or a terminal.
What it does
The tools are grouped into six categories.
| Category | Tools |
|---|---|
| Text Tools | Case Converter, Word & Character Counter, Remove Duplicate Lines, Base64 Encode / Decode, URL Encode / Decode |
| JSON Tools | JSON Formatter, JSON Minifier, JSON Validator |
| Security | JWT Decoder, UUID Generator, Password Generator, Hash Generator |
| Web Tools | Regex Tester, HTTP Status Codes, URL Parser |
| Design Tools | Color Picker, HEX ↔ RGB Converter, CSS Gradient Generator |
| Utilities | QR Code Generator, QR Code Scanner, Unix Timestamp Converter |
Around the tools, the app gives you:
- A search bar and category filters to find a tool quickly.
- Favorites: star the tools you use most and show only those.
- Light, dark and system themes. Your theme and favorites are remembered.
- A layout that works on a phone (one column) and on a wide desktop window (up to four columns).
Platforms
Version 1.0.0 is published for:
- Android (APK download).
- Linux on 64-bit Intel/AMD PCs, as a
.debpackage for Debian and Ubuntu.
The QR Code Scanner needs a camera and works on Android only. Every other tool works on both platforms.
Works offline
No tool needs a network connection, and the app has no accounts. On Android the app asks for the camera permission only when you open the QR Code Scanner.