Free Online JSON Formatter & Validator

Instantly format and validate any JSON string. Paste raw or minified JSON and get a beautifully indented, readable output. Errors are detected and displayed clearly.

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Input JSON

Formatted Output

Frequently Asked Questions

What is a JSON formatter?

A JSON formatter takes raw or minified JSON and converts it into a human-readable, indented format. It also validates the JSON structure and highlights any syntax errors.

Is my JSON data safe?

Yes. All processing happens server-side and your data is never stored or logged. Each request is processed and discarded immediately.

What JSON versions are supported?

This tool supports standard JSON (RFC 8259), including objects, arrays, strings, numbers, booleans, and null values.