Validate, Beautify, and Minify JSON
JSON (JavaScript Object Notation) is the language of the web, but it is often messy and hard to read. This tool helps developers debug APIs by turning raw JSON strings into a readable, indented structure ("Beautifying"). It also supports "Minification," which removes all unnecessary whitespace to reduce file size for production usage.
The Security Advantage
Warning: Many online JSON formatters send your data to their backend server to process it. If your JSON contains API Keys, User IDs, or passwords, this is a massive security risk.
FreeSoft.app is different. We use your browser's built-in JavaScript engine to parse and format the data. The text in the input box never leaves your computer.
Related Tools
Checking config files? Use the Diff Checker to compare versions. Need to generate secure keys? Try the Password Generator.
Last Updated: