JSON Formatter & Validator
Paste your messy JSON data below to instantly format, beautify, or minify it. All processing happens locally in your browser.
How to use this tool
- Paste your raw JSON data into the input box on the left (or top on mobile).
- Select your preferred indentation level (2 spaces, 4 spaces, or tabs).
- Click "Format JSON" to beautify the code, or "Minify JSON" to compress it.
- If your JSON is invalid, an error message will appear explaining the issue.
- Click the "Copy" button to copy the formatted result to your clipboard.
Why use our JSON Formatter & Validator?
Working with raw JSON data from APIs or databases can be incredibly difficult to read. Our JSON Formatter instantly organizes the data into a readable structure, making debugging and development much faster. Because it runs entirely in your browser, you can safely format sensitive data without worrying about it being intercepted or stored on a remote server.
Frequently Asked Questions
What is JSON formatting?
JSON formatting (or beautifying) is the process of taking raw, minified, or disorganized JSON data and adding proper indentation, line breaks, and spacing to make it easily readable by humans.
Is my JSON data sent to a server?
No. Our JSON Formatter processes all data locally in your web browser. Your data is never uploaded, stored, or transmitted to our servers, ensuring complete privacy for sensitive information.
What does "minify" mean?
Minifying JSON removes all unnecessary whitespace, line breaks, and indentation. This reduces the file size, making it ideal for transmitting over a network or storing in a database where human readability is not required.
Why am I getting an "Invalid JSON" error?
JSON has strict syntax rules. Common errors include missing quotes around keys, trailing commas after the last item in an array or object, or using single quotes instead of double quotes. Check your data for these common mistakes.