Free Developer Tool
JSON Formatter
Format, validate and prettify JSON instantly in your browser.
What is JSON Formatter?
A JSON formatter helps developers clean up and validate raw JSON data. It improves readability and detects invalid JSON instantly.
How to use
- Paste your JSON into the input field.
- Click the format button.
- Copy the formatted result.
Features
- Format and beautify JSON
- Validate JSON syntax
- Minify JSON data
- 100% client-side processing
- No data uploaded or stored
Example
Input
{"name":"John","age":30}Output
{
"name": "John",
"age": 30
}FAQ
Is this tool secure?
Yes. Everything runs locally in your browser. Your data never leaves your device.
Can I validate JSON?
Yes. Invalid JSON structures automatically show an error.
Does this tool work offline?
Yes. Once loaded, the tool can work entirely in your browser.