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Format, validate, pretty-print and minify JSON directly in your browser. Paste JSON into the editor, choose your indentation, and get clean, readable output in seconds.
JSON Beautify turns compact or hard-to-read JavaScript Object Notation into consistently indented JSON. It also works as a JSON validator and JSON lint checker, so syntax problems can be found before you use data in an API, configuration file, log, application or database.
Use 2, 3 or 4-space indentation for pretty JSON, switch the formatted output to a tree view for nested objects and arrays, copy the result, or download it as a file. For production payloads, Minify / Compact removes unnecessary whitespace while preserving the data.
A JSON beautifier, also called a JSON formatter or pretty printer, adds indentation and line breaks to valid JSON so nested objects and arrays are easier to read.
Paste the JSON into the input editor and click Validate. The validator checks the JSON syntax and reports a parsing error when the document is invalid.
JSON minification removes unnecessary spaces and line breaks from valid JSON. The values and structure stay the same while the text becomes more compact.
Yes. Open a local JSON file in the editor, format it with your preferred indentation, then copy or download the formatted result.
Modern JSON is defined by RFC 8259 and ECMA-404. Valid JSON uses double-quoted strings and does not allow trailing commas or JavaScript comments.