JSON Formatter, Validator, and Minifier
Format JSON online for free. Validate API payloads, pretty print nested data, and minify JSON instantly in your browser.
Input JSON
Example JSON
Input JSON
{
"name": "John Doe",
"age": 30,
"isStudent": false,
"courses": ["Math", "Science"],
"address": {
"street": "123 Main St",
"city": "Anytown",
"zip": "12345"
}
}Formatted JSON
{
"name": "John Doe",
"age": 30,
"isStudent": false,
"courses": [
"Math",
"Science"
],
"address": {
"street": "123 Main St",
"city": "Anytown",
"zip": "12345"
}
}Popular search phrases
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Guides & Resources
Learn how to use this tool effectively with our comprehensive guides and tutorials.
How to Format JSON, Decode Base64, and Fix API Payloads
Help developers clean API responses, inspect encoded strings, and resolve formatting issues without leaving the browser.
JSON Formatter Guide: Pretty Print, Validate, and Fix Common Errors
Format and validate JSON quickly in your browser. Learn how to pretty print JSON, minify JSON, and fix common parse errors for APIs and configs.
How to Compare Two Files for Code Review
Spot text and code differences faster when reviewing snippets, config files, and version changes.
Frequently Asked Questions
Find answers to common questions about this tool
How do I format JSON online?
Paste your JSON, then choose format or beautify to turn it into clean, readable output.
Can this tool validate JSON?
Yes. It checks whether the structure is valid JSON before you reuse the data.
Can I minify JSON after formatting it?
Yes. You can switch from pretty printed JSON back to a compact minified version.
Is this JSON Formatter useful for API payloads?
Yes. It is useful for API responses, request bodies, config files, and code examples.
Is this JSON Formatter free?
Yes. You can use it online for free without signup.
Can I use JSON Formatter online for free?
Yes. You can use json formatter online for free with no signup or paid plan required.