Offband product

Offline JSON formatter for Mac

FormatKit keeps common formatting and conversion tasks local on your Mac, without uploads, accounts, or browser tabs.

Download on the Mac App Store Support Privacy

Format data without sending it anywhere

FormatKit is built for quick local transformations: readable JSON, URL encoding and decoding, Base64 conversion, timestamp inspection, and file conversion work that belongs on the machine in front of you.

The point is not to replace a full developer IDE. It is to remove the small unsafe habit of pasting private data into random web tools just to clean up a value.

Interface preview

FormatKit json pretty url decoded base64 text timestamp local time

FAQ

Does FormatKit need an account?

No. FormatKit is designed as a local Mac utility.

Is this for sensitive data?

It is meant to reduce unnecessary uploads by keeping routine formatting work on-device. You should still follow your own data handling rules.

What can it format?

The target surface is everyday developer data: JSON, URLs, Base64, timestamps, and local conversion tasks.