About

JSON formatter

Validate and pretty-print JSON, or compress it onto one line.

Input

Runs on your device

Result

Your result will appear here

How to use json formatter

Set Input, Output. Select Run tool, then review the result. Use the download or copy controls to keep it. Reset restores the starting settings and clears the result.

Your files stay here

Inputs are processed in your browser and are not uploaded to an Everytool server. Results last until you reset or leave this page. Favorites and recently used tool names are saved only in this browser.