JSON Formatter - Beautify & Pretty-Print JSON
Format and beautify raw JSON with syntax highlighting and custom indentation.
Processed 100% locally in your browser. Never sent to our server.
Motore di elaborazione JSON
Spaziatura rientro:
Informazioni su JSON Formatter - Beautify & Pretty-Print JSON
Parses raw JSON strings and re-serializes them with configurable indentation (2-space, 4-space, tab) for readability.
How to Format and Beautify JSON
1. Paste your raw or minified JSON string into the input editor.
2. Select your preferred indentation (2 spaces, 4 spaces, or tab).
3. The tool instantly parses, formats, and validates your JSON syntax.
4. Click "Copy Output" or "Download JSON" to save your clean formatted JSON.
Esempi di utilizzo
Formatting Minified API Response
Input: {"user":{"id":101,"name":"Alice","roles":["admin","editor"]}} Output (2 spaces): { "user": { "id": 101, "name": "Alice", "roles": [ "admin", "editor" ] } }
Domande frequenti
Does this JSON formatter send my data to a server?
No. All JSON parsing, syntax highlighting, and formatting happen 100% client-side in your web browser. Your data never leaves your device.
What happens if my JSON has syntax errors?
The built-in validator highlights the exact line and character position of syntax errors (e.g. missing commas or unquoted keys) so you can fix them immediately.
Can I format large JSON files?
Yes, our browser-native JavaScript parser handles JSON payloads up to tens of megabytes smoothly.