DevUtils
Offline development toolkit
Mac
Version 1.17.0
macOS 10.13 or later
48.8 MB
1 languages
Whether you need to format JSON, debug a JWT token, or convert a UNIX timestamp, DevUtils can solve any of this in just one click. Get access to a huge set of development utilities that all work offline. Thanks to smart detection, you don’t even have to switch between them — DevUtils inspects your clipboard content and picks the utility you need at the moment.
Get quick access to generators/decoders
Convert between data types, unit, and formats
Inspect and debug your data faster
Use every tool offline locally on Mac
DevUtils features
Work entirely offline
Anything you do with DevUtils you do offline. There’s no more need to paste JSON strings or any kind of sensitive data into random websites — DevUtils does it all locally on your Mac.
Popular development tools
Unix Time Converter, JSON Format/Validate, Base64 Encode/Decode, Regex Tester, UUID Generator, and more. New tools are added regularly with updates. Scripting will be added soon, so you’ll be able to add your own custom tools/scripts.
Smart detection
Once you see how much time DevUtils saves you, you’ll want to keep it at hand. Access DevUtils via the menu bar or use a global hotkey to open the app anytime. You can also right-click > Inspect in DevUtils.app. The app will automatically open the tool you need based on your clipboard content.
Ratings and reviews
DevUtils
•
1751 ratings
Bart Hutton
Aug 25, 2026
App version: 1.17.0
I’ve really only ever used it for quick 64bit decoding, and it’s great for that!
Nigel Peters
Aug 17, 2026
App version: 1.17.0
Great little app. While my use may be limited to converting strings to camel case or snake case. Beats doing it by hand everytime. Can only imagine what the more complex operations provide in terms of saved thinking and tinkering.
Allen Hancock
Aug 11, 2026
App version: 1.17.0
Whoa, I didn’t know i needed this app!
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DevUtils
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DevUtils
Offline development toolkit