JSON Formatter
Paste raw JSON to pretty-print it with clean indentation, minify it into a compact single line, or validate it and find syntax errors.
Your JSON
Output
Your formatted or minified JSON will appear here.
How to use the JSON Formatter
Copy a chunk of JSON and paste it into the box on the left. Press Format to add indentation and make it readable, Minify to strip all unnecessary whitespace, or Validate to confirm the JSON is well-formed. If there is an error, the message tells you what went wrong.
- Great for debugging API responses and config files.
- Minified output is ideal for saving space in code.
- Your data is parsed locally and never sent anywhere.
Frequently asked questions about JSON
What is JSON and where is it used?
JSON (JavaScript Object Notation) is a lightweight text format for storing and exchanging data. It is the standard for web APIs, configuration files and communication between apps and servers.
How do I check if my JSON is valid?
Paste it into the box and press Validate. If there is a syntax error such as a missing comma or an unclosed bracket, the tool shows the exact message so you can fix it quickly.
Should I minify JSON?
Minifying removes spaces and line breaks to make the file smaller and faster to send. Keep the formatted version for reading and debugging, and use the minified output for production API responses and config files.