JSON Formatter
Format, beautify, and validate JSON instantly.
What does JSON Formatter do?
JSON Formatter takes raw, minified, or malformed JSON and outputs clean, indented, human-readable JSON. It also validates the input against the JSON specification, highlighting errors with their exact position. Supports custom indentation and key sorting.
Use Cases
- •Debugging a malformed API response from a REST endpoint
- •Reviewing a Kubernetes ConfigMap stored as a JSON string
- •Sharing readable JSON in a Slack message or pull request comment
- •Validating a JSON schema before sending to a third-party service
- •Converting minified package.json back to readable form
How to Use
- 1Paste or type your JSON into the input panel on the left
- 2Click "Format" to beautify the JSON
- 3Click "Minify" to remove whitespace
- 4Click "Validate" to check for syntax errors
- 5Upload a .json file using the upload button
- 6Copy the output or download it as a file
Frequently Asked Questions
Does this tool store my JSON data?
No. The JSON Formatter runs entirely in your browser. Your data never leaves your device and is never sent to our servers.
What's the difference between format and minify?
Format adds indentation and line breaks to make JSON human-readable. Minify removes all whitespace to make JSON as compact as possible.
Can I format JSON with comments (JSON5)?
Standard JSON does not support comments. This tool validates against the official JSON specification. For JSON5 support, we recommend removing comments first.
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