Developer Tools
~/json-formatter
// Format, validate, and minify JSON instantly in your browser. No data sent to server.
Beautify
Converts minified or messy JSON into a human-readable indented format.
Validate
Instantly checks if your JSON is valid and shows the exact error location.
Minify
Strips all whitespace to produce the smallest possible JSON string.
// FAQ
Is my data safe?
Yes. All processing happens entirely in your browser using JavaScript. No data is ever sent to our servers.
What JSON versions are supported?
This tool supports standard JSON (RFC 8259). JSON5 or comments are not supported - use standard double-quoted keys and values.
What is JSON minification?
Minification removes all unnecessary whitespace and newlines from JSON, reducing file size for use in APIs or storage.