DevToysMac
DevToys For mac
A free macOS app that bundles many small developer utilities in one place, JSON to YAML converter, Base64 encoder, URL encoder, number base converter, HTML encoder, and JSON formatter, so you never need a browser tab for common data tasks.
DevToysMac is a macOS application that brings the DevToys developer utility collection to Mac. DevToys started as a Windows app and this is a Mac port of the same concept: a single app that bundles many small tools developers use regularly, so you do not have to hunt down separate websites or write one-off scripts for common data transformation tasks.
The tools visible in the README screenshots include a JSON to YAML converter (and back), a number base converter for switching between decimal, binary, hexadecimal, and other numeral systems, an HTML encoder and decoder, a URL encoder and decoder, a Base64 encoder and decoder, and a JSON formatter that takes messy JSON and makes it readable with proper indentation. The README notes there are additional tools beyond those shown.
The app shows all tools on a home screen so you can find what you need at a glance. Each tool opens in the same window with a simple input-output layout.
Installation is straightforward: either download a zip file from the GitHub releases page and extract the app, or install through Homebrew using a single command. No App Store account or purchase is needed.
The README is sparse, consisting mostly of screenshots with minimal written explanation. It identifies this as a Mac port of the Windows original but does not go into further detail about the implementation or what specific Mac system version is required.
Where it fits
- Convert JSON to YAML (or back) instantly without leaving your Mac or opening a browser.
- Encode or decode Base64 and URL strings during API development in a single click.
- Format messy JSON into readable indented output for debugging without pasting into an online tool.