JSON Formatter & Pretty Printer
Format and pretty-print JSON instantly online. Minify or beautify JSON with proper indentation. Free JSON formatter — no sign-up required.
Output will appear here
Press ⌘ Enter to convert
How It Works
- 1Paste your minified or messy JSON
- 2DevConvert validates it and reformats with 2-space indentation
- 3Copy the pretty-printed result or download it
Examples
Input
{"id":1,"name":"Alice","roles":["admin","editor"]}Output
{
"id": 1,
"name": "Alice",
"roles": ["admin", "editor"]
}Input
{"status":"ok","data":{"token":"abc123","expires_in":3600}}Output
{
"status": "ok",
"data": {
"token": "abc123",
"expires_in": 3600
}
}Frequently Asked Questions
What is JSON formatting / pretty-printing?
JSON formatting adds newlines and spaces so each key-value pair sits on its own line with consistent indentation. This makes JSON human-readable without changing its data.
Can I minify JSON too?
DevConvert currently outputs pretty-printed JSON. To minify, paste your JSON and the output will be valid — you can then copy and run JSON.stringify(data) in your browser console to minify.
Does this work with large JSON files?
Yes, DevConvert handles JSON up to several MB in the browser. Very large files may be slow in the preview but the conversion itself is fast.