JSON Formatter

Format, validate, and minify JSON. Precisely detect syntax errors.

Input

Online JSON Formatter, Validator, and Minifier

Working with APIs and raw data structures can be complex if they are not correctly formatted. Our Online JSON Formatter allows you to tabulate, structure, verify and detect errors in your JSON code instantly and privately.

Main Features

  • Format and Beautify: Converts unreadable JSON strings into a clean structure with customizable indentation (2, 4, or 8 spaces).
  • Validate Syntax: Instantly detects missing quotes, trailing commas, or unclosed brackets, indicating the reason for the error.
  • Minify / Compress: Removes all spaces and line breaks to reduce payload size before sending API responses.

Frequently Asked Questions (FAQ)

Is it safe to paste private JSON code or tokens here?

Completely. This tool runs 100% client-side (in your local browser). No JSON data inserted into this text field is sent to any external server.