JSON Formatter
Format, validate, and beautify JSON data. Minify for production or pretty-print for readability. Instant client-side processing with syntax highlighting.
Quick answer
A JSON formatter turns minified or messy JSON into readable, indented JSON. ClickBuildLabs formats, validates, and minifies JSON directly in your browser, so your JSON is not uploaded or stored by this page.
What is a JSON Formatter?
Use this JSON formatter to make valid JSON easier to read, inspect, and share. Paste JSON into the tool to format it with indentation, minify it, or check for basic syntax errors.
How do you use JSON Formatter?
- Paste your JSON object, array, or value into the input area.
- Choose whether you want to beautify, minify, or validate the JSON.
- Review the formatted output or error message, then copy the result if needed.
What does JSON Formatter help with?
Formatting a compact API response
A compact string like {"name":"Alex","active":true} can be expanded into readable, indented JSON so keys and values are easier to scan.
How does JSON Formatter work?
What the formatter checks
The tool parses the input as JSON. If parsing succeeds, it can output an indented version or a minified version. If parsing fails, it reports a basic syntax error from the browser JSON parser.
JSON Formatter FAQ
What counts as valid JSON?
Valid JSON must use double quotes for strings, proper commas between items, and supported values such as objects, arrays, strings, numbers, booleans, and null.
Can this fix invalid JSON automatically?
No. It can show that parsing failed, but you still need to correct the invalid syntax in the input.
Is formatted JSON sent anywhere?
No. Formatting, minifying, and basic validation happen in your browser.
Can I minify JSON with this tool?
Yes. Use the minify option to remove unnecessary whitespace and produce compact JSON for copying or production use.