JSON Formatter / Validator
Format and validate JSON.
Input
Output
What is JSON formatting?
JSON (JavaScript Object Notation) is a common data format. Raw JSON is often minified—one long line with no spaces—which is hard to read. Formatting adds indentation and line breaks so you can inspect and edit the structure easily.
Why this tool is useful
APIs and config files often return or store minified JSON. This tool prettifies it instantly and validates syntax: invalid JSON shows an error so you can fix missing commas, brackets, or quotes before using the data elsewhere.
Example usage
Paste {"name":"Sukh","role":"Developer"} and see indented, readable output as you type. Paste broken JSON (e.g. a missing comma) and the tool shows an inline error. No data is sent to a server.
How to use this tool
Paste your JSON into the input box. Formatted output or validation errors appear live. Copy the formatted result or fix errors. Clear resets input. For encoding/decoding, try Base64 or URL Encoder.