JSON Formatter & Beautifier
Pretty-print JSON with configurable indentation, minify it to a single line, or sort object keys alphabetically. Free online JSON formatter and beautifier.
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Format JSON online, instantly
Our free JSON formatter and beautifier turns messy, minified JSON into clean, readable, properly indented output in one click. Choose 2 spaces, 4 spaces or tabs, sort keys alphabetically for canonical diffs, or minify JSON to the smallest possible size for production payloads.
Everything runs locally in your browser, so even sensitive data stays private. It is the fastest way to pretty-print JSON, fix indentation and prepare clean documents for code review.
Frequently asked questions
Is this JSON formatter free?+
Yes. The JSON formatter, beautifier and minifier are completely free and run entirely in your browser — no sign-up required.
Does my JSON get uploaded to a server?+
No. Formatting, minifying and sorting keys all happen client-side, so your data never leaves your device.
What indentation options are supported?+
You can pretty-print JSON with 2 spaces, 4 spaces or tabs, and optionally sort object keys alphabetically for clean, canonical output.
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