JSON Formatter
Beautify, validate and minify JSON with precise error locations. Format and validate JSON online. Pretty-print with 2 or 4 spaces, minify, and pinpoint syntax errors with line and column. Free JSON beautifier for developers.
About the JSON Formatter
A single misplaced comma can break a 2,000-line config file. Paste any JSON here to pretty-print it with your preferred indent, minify it for production, or validate it with error reporting that points to the exact line and column of the problem. The formatter handles large payloads, preserves your data exactly, and includes a key-sorting option for diff-friendly output — all locally in your browser.
How to use the JSON Formatter
- Paste your raw or minified JSON into the editor.
- Click Format to pretty-print, or Minify to compact it.
- Fix any syntax error where the validator points you.
- Copy the result back into your project.
Key features
- Pretty-print with 2, 4 or 8 space indentation
- Minify to a single compact line
- Validation with exact line/column error positions
- Optional alphabetical key sorting
Is my JSON sent to a server?
What JSON dialect is supported?
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