JSON Sorter & Formatter
Beautify JSON and sort object keys alphabetically
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
This tool takes messy or minified JSON and reformats it with clean indentation and line breaks. It also lets you sort object keys alphabetically (with recursive and reverse-order options), which is handy for developers comparing data structures or reviewing API responses. Everything runs locally in your browser, so nothing you paste in is ever sent to a server.
How to use
- Paste your JSON text into the input box on the left.
- Choose an indentation style: 2 spaces, 4 spaces, or a tab.
- Optionally enable 'Sort Keys Alphabetically', then decide whether to sort nested objects recursively and whether to reverse the order (Z-A).
- Copy the formatted JSON from the output panel with the copy button.
FAQ
- What happens if my JSON is invalid?
- The tool shows an error message describing what's wrong with the syntax, and no formatted output is produced until the JSON is valid.
- Does sorting affect array order?
- No. Key sorting only applies to object properties; the order of items inside arrays is left untouched. With recursive sorting on, keys inside objects nested in arrays are still sorted.
- Is my data uploaded anywhere?
- No. Parsing, sorting, and formatting all happen entirely in your browser, so your JSON never leaves your device.