JSON Validator
Validate JSON and see a clear success message or parse error.
Open ToolJSON Formatter
Format messy JSON into readable, indented output directly in your browser.
About JSON Formatter
JSON Formatter formats minified or messy JSON into readable, indented output.
It helps developers inspect objects, API responses, config files, and sample payloads without manually adding line breaks.
How to Use JSON Formatter
- Paste the JSON text.
- Run the formatter.
- Review the indented output.
- Copy the formatted JSON for debugging or documentation.
Common Use Cases
- Reading API responses.
- Cleaning config snippets.
- Preparing JSON examples for docs.
Why Format JSON?
Raw JSON can be hard to read when it is minified or pasted on one line. Formatting adds indentation so objects, arrays, keys, and values are easier to inspect.
This is useful when checking API responses, configuration snippets, logs, sample payloads, or data copied from a browser console.
Common JSON Checks
- Confirm that braces, brackets, and commas are in the right place.
- Look for unexpected missing fields or wrong values.
- Format small payloads before sharing them with a teammate.
- Remove private tokens or user data before pasting examples online.
Frequently Asked Questions
Does formatting change the JSON values?
Formatting should only change spacing and indentation. Review the result if the original JSON is invalid.
Can I paste API responses?
Yes, but remove private tokens, emails, IDs, or customer data before using any online formatter.
What if my JSON has an error?
Use a JSON validator to identify syntax errors such as missing commas, extra brackets, or unquoted keys.