JSON Formatter
Free online JSON formatter and validator. Paste your JSON to beautify and validate it with syntax highlighting, clear error messages, and line numbers. Also supports minification and clipboard copy.
Paste JSON here
input.json
output.json
Guide
How to Use
- 1
Paste your JSON into the left panel
- 2
Errors are highlighted with line numbers
- 3
Click Format to beautify or Minify to compress
- 4
Copy the result to clipboard
FAQ
Frequently Asked Questions
What is JSON formatting?
JSON formatting (or beautifying) adds proper indentation and line breaks to make JSON data human-readable.
Does it validate JSON?
Yes, it instantly validates your JSON and shows error messages with line numbers if the JSON is invalid.
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