JSON Formatter
Format, beautify, and minify JSON online. Free, fast, and private, everything runs in your browser.
How to use
- Paste your JSON into the input box.
- Choose an indent size, 2 spaces, 4 spaces, tab, or minify.
- Copy the formatted result.
Examples
- Minified object:
{"name":"Ada","langs":["Go","TS"]} - Nested array:
{"items":[{"id":1},{"id":2}]}
FAQ
- Is my JSON sent to a server?
- No. All formatting happens locally in your browser, your data never leaves your device.
- What does minify do?
- Minify removes all whitespace and newlines, producing the smallest valid JSON on a single line.
- Why does it say invalid JSON?
- Your input is not valid JSON. Common causes are unquoted keys, trailing commas, or single quotes instead of double quotes.