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Format, validate, and explore JSON data
{
"name": "John Doe",
"age": 30,
"active": true,
"emails": [
"john@example.com",
"doe@work.com"
],
"address": {
"city": "New York",
"zip": "10001"
}
}Paste your raw JSON into the input field and the formatter will instantly pretty-print it with proper indentation. You can choose 2-space or 4-space indentation and optionally sort keys alphabetically.
Common JSON errors include missing commas between items, trailing commas after the last element, single quotes instead of double quotes, unquoted keys, and comments (JSON does not support comments). The validator highlights the exact line with the error.
Formatting adds indentation and line breaks for human readability. Minifying removes all unnecessary whitespace to reduce file size, which is ideal for API payloads and production configuration files.
Yes. Copy the raw API response body and paste it into the input field. The tool will validate the syntax and show you a formatted version with statistics like object count, array count, and total size.
Yes. All formatting, validation, and minification happens entirely in your browser. No data is sent to any server, so it is safe to use with sensitive or proprietary JSON data.