JSON Formatter — Beautify and Indent JSON Code Instantly
Beautify and format minified or ugly JSON into clean, readable, indented output.
What Is JSON Formatter?
Beautify and format minified or ugly JSON into clean, readable, indented output.
JSON (JavaScript Object Notation) is the universal data exchange format for web APIs — virtually every REST API sends and receives data as JSON. But JSON transmitted over a network is typically minified (all whitespace removed) to reduce payload size, making it unreadable to humans.
The JSON Formatter takes minified or poorly indented JSON and reformats it with proper 2-space indentation and line breaks, making the structure immediately visible. It also validates the JSON as a side effect — invalid JSON produces a syntax error message, helping you pinpoint problems in malformed payloads instantly.
{"name":"John","age":30}→{
"name": "John",
"age": 30
}When to Use the JSON Formatter
- →Debugging API responses — API responses come back as minified single-line JSON; formatting makes the structure readable for debugging
- →Validating JSON syntax before importing — a formatting attempt that fails immediately reveals the syntax problem (missing quotes, trailing commas)
- →Reviewing webhook payloads — webhooks from Stripe, GitHub, and other services send JSON payloads that need formatting for human review
- →Reading complex configuration files — nested JSON config files (package.json, tsconfig.json) are far easier to read with consistent indentation
- →Presenting JSON in API documentation — code examples in API docs should use formatted, indented JSON for readability
How to Use the JSON Formatter
- Paste or type your text into the Input Text box.
- The result appears instantly on the right.
- Click Copy to copy the output to your clipboard.
- Click Clear to reset and process new text.
Frequently Asked Questions
Everything you need to know about JSON Formatter
JSON formatting (also called "pretty-printing" or "beautifying") adds proper indentation and line breaks to minified or compact JSON, making it easy for humans to read and debug.