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About JSON Formatter
The JSON Formatter pretty-prints, validates, and minifies JSON. Paste raw or messy JSON and it re-indents the structure with consistent spacing and syntax highlighting, making nested objects and arrays easy to read.
If the JSON is invalid, it points out the error so you can fix it quickly. You can also sort object keys for consistent diffs, or minify the output to remove all whitespace before shipping to production. Everything runs in your browser — your data is never sent to a server.
How to use JSON Formatter
- Paste your JSON into the input area.
- Choose Format to pretty-print, or Minify to compact it.
- Review any validation errors and fix them.
- Copy or download the result.
Frequently asked questions
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