JSON Formatter
Format, validate and minify JSON data online for free directly in your browser.
JSON Input
Paste your JSON below to format, validate or minify it.
JSON Output
Formatted or minified JSON will appear here.
Browser-Based JSON Processing
JSON formatting, validation and minification are performed directly in your browser by the current tool. Your JSON does not need to be uploaded to a ConvertTools processing server.
Free Online JSON Formatter
ConvertTools JSON Formatter helps developers, students and anyone working with structured data make JSON easier to read and inspect. Paste your JSON into the editor and format it with consistent indentation in seconds.
You can also validate JSON to identify syntax problems or minify the data when you need a smaller compact representation.
How to Format JSON Online
- Paste or type your JSON into the input editor.
- Select 2-space or 4-space indentation.
- Click Format JSON.
- Review the formatted output.
- Copy the result when needed.
JSON Formatter Features
Beautify JSON
Add readable indentation and line breaks to compact JSON data.
Validate JSON
Check whether your JSON input contains valid syntax.
Minify JSON
Remove unnecessary spaces and line breaks to create compact JSON.
No Signup Required
Use the formatter immediately without creating an account.
Frequently Asked Questions
What is a JSON formatter?
A JSON formatter makes JSON data easier to read by adding indentation, line breaks and consistent spacing.
Can this tool validate JSON?
Yes. The validator checks whether your input can be parsed as valid JSON and reports an error when the structure is invalid.
Can I minify JSON?
Yes. The Minify JSON option removes unnecessary whitespace and line breaks to produce a compact JSON string.
Is the JSON formatter free?
Yes. The ConvertTools JSON formatter is free and does not require registration.
Is my JSON uploaded to a server?
The current JSON formatter processes the entered JSON directly in your browser and does not need to send it to a ConvertTools processing server.