DevToolbox

Download for macOS · Windows · Linux

A single app for 45+ common development tasks. Works offline, zero setup.

Base64, JWT, JSON formatting, hashing, encoding, escaping, color conversion, regex testing, cron parsing, diff checking, Unix time conversion, barcode generation, mock data, and 30+ more.

Features Spotlight-like Command Palette: Press Cmd+Ctrl+M (macOS) or Ctrl+Alt+M (Windows/Linux) from anywhere to open the floating command palette. Works even over fullscreen apps!

No browser tabs. No data sent to servers. Just open and use.

Desktop or Browser

• Desktop: Native app (default). Fast, works offline.
• Browser: Access at http://localhost:8081 when desktop app is running.

Installation

macOS

# Download from releases, then:
xattr -cr /Applications/devtoolbox.app  # First run only

Windows

Download devtoolbox-windows.exe from releases and run.

Linux

tar -xzf devtoolbox-linux.tar.gz
./devtoolbox

Build from source: docs/BUILD.md

License

MIT