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JSON Formatter - Format, Validate, and Minify JSON Online
Use this free JSON formatter to format, validate, minify, sort keys, and beautify JSON instantly online.
What this tool does
Format raw JSON into clean, readable output with proper indentation for debugging, editing, and documentation.
Minify JSON by removing spaces and line breaks to create compact output for production use.
Validate JSON instantly and show the error location when the syntax is invalid.
Sort JSON object keys alphabetically to make diffs, reviews, and comparisons easier.
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How this JSON formatter works
This JSON formatter parses your JSON input and converts it into clean, readable output with proper indentation.
You can also validate JSON to check for syntax errors before using it in an API, app, or configuration file.
The minify option removes spaces and line breaks to create compact JSON output for production use.
You can paste JSON directly into the editor or upload a JSON file from your device.
Frequently Asked Questions
What does a JSON formatter do?
A JSON formatter makes raw or messy JSON easier to read by adding indentation, spacing, and line breaks.
How do I validate JSON?
Paste your JSON into the input box and click Validate JSON. The tool will tell you whether the JSON is valid or show an error message.
What is minified JSON?
Minified JSON is compact JSON without extra spaces or line breaks. It is useful when you want smaller file sizes.
Can I upload a JSON file?
Yes. You can upload a .json file, edit it, then format, validate, minify, copy, or download the result.
What does Sort Keys do?
Sort Keys rearranges JSON object keys in alphabetical order, which makes the output easier to compare, review, and debug.