What does this JSON formatter do?
It checks standard JSON and outputs either readable, indented JSON or a compact version without unnecessary whitespace. The conversion happens in your browser.
JSON Formatter
Format or minify standard JSON in your browser. Choose the indentation for formatted output. Nothing is uploaded. Up to 50000 characters at a time.
Indent
JSON input
Paste valid JSON here...
0 / 50000
Common questions
What is the difference between Format and Minify?
Format adds line breaks and indentation so JSON is easier to read. Minify removes unnecessary whitespace to make the JSON smaller while keeping the same data.
Which JSON syntax is accepted?
The tool accepts standard JSON: double-quoted property names and strings, numbers, booleans, null, arrays, and objects. Comments, trailing commas, and single-quoted strings are not valid JSON here.
Is the JSON uploaded?
No. Validation and formatting run in your browser. No account is required, and the JSON is not sent anywhere.