Developer Tool
JSON Formatter
Format, validate, and minify JSON locally in your browser without uploading its contents.
Make JSON readable
Paste JSON in any valid compact or irregularly spaced format and turn it into consistently indented, readable output. You can also validate or minify it for use in an application.
Browser-only tool
Format JSON
Processed locally in your browser. Nothing is uploaded or stored.
Output
Formatted JSON will appear herePrivate by design
Formatting happens entirely inside your browser using its built-in JSON parser. The content is not sent to a server and is not saved in local browser storage. Closing or reloading the page clears it.