JSON Formatter
Paste JSON to validate, pretty-print, minify, or sort its keys — with syntax highlighting and precise error locations.
Runs on your device
Works offline
Ctrl↵ to format
Output
Formatted JSON appears here.
Clean JSON, quickly
Pretty-printing makes API responses and config files readable; minifying strips whitespace for transport; sorting keys makes two documents easy to diff. Large documents stay on your machine — nothing is uploaded.
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