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JSON Beautifier
Beautify JSON with readable indentation locally
Pretty-print valid JSON with two spaces, four spaces or tabs and optional recursive key sorting, entirely in your browser.
Result
Beautified JSON output
No output yet.
Processing stays inside this browser.
Instructions
How to use JSON Beautifier
Paste JSON or choose a local .json file, select indentation, optionally sort keys, then choose Beautify JSON.
Real input and output example
{"z":1,"a":{"ready":true}} becomes a readable multi-line document while values and array order remain unchanged.
Diagnostics and limitations
What this tool reports clearly
Key sorting changes object member order in the generated output. Although JSON object order has no semantic meaning, some human workflows rely on its presentation.
Privacy
Files are read with browser APIs and processing runs in a dedicated local Worker. Your JSON is never placed in a network request.
FAQ
Common question
Does beautifying change values?
No. The document must parse first, and serialization preserves values and array order.