What is JSON formatting?

JSON formatting (also called "pretty printing") adds consistent indentation and line breaks to JSON data, making it human-readable. Minified JSON removes all unnecessary whitespace to reduce file size.

Is there a file size limit?

Since everything runs in your browser, the limit depends on your device's available memory. Most modern devices can handle JSON files up to several megabytes without issues.

JSON Formatter

Format, validate, and minify JSON data with syntax highlighting

Your data never leaves your device

Indent:Sort keys

Input

Drop a JSON file here or click to upload

Output

Formatted output will appear here...

Ready

Characters: 0Lines: 0Size: 0 B

Frequently Asked Questions

What is JSON formatting?

JSON formatting (also called "pretty printing") adds consistent indentation and line breaks to JSON data, making it human-readable. Minified JSON removes all unnecessary whitespace to reduce file size.
Is there a file size limit?

Since everything runs in your browser, the limit depends on your device's available memory. Most modern devices can handle JSON files up to several megabytes without issues.