JSON Formatter & Validator

Format, minify or validate your JSON data online. Paste your JSON, choose a mode and instantly get a readable, minified or analyzed result.

Mode

Format (Prettify)

Indent and format your JSON for readability.

Minify

Remove all whitespace to reduce the size.

Validate & Analyze

Check if the JSON is valid and get statistics.

JSON input

Paste or type your JSON data here.

Indent size (spaces)

Number of spaces per indentation level (1 to 8).

Result

Here is the result of the JSON processing.

Output

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is widely used in web APIs, configuration files and data storage. JSON supports objects, arrays, strings, numbers, booleans and null values.

Why use a JSON formatter?

Make minified or compact JSON readable by adding proper indentation.
Reduce JSON file size by removing unnecessary whitespace (minification).
Validate JSON syntax and detect errors before sending data to an API.

Good to know

JSON keys must be double-quoted strings. Trailing commas and single quotes are not valid JSON. This tool processes your data entirely in the browser and server-side without sending it to any third party.