About the JSON Formatter
Turn minified API responses and config files into readable, indented JSON. If the input is invalid, you get the line and column of the problem instead of a vague failure. Optional key sorting makes two JSON documents easier to compare.
Your data is processed in the browser and never sent to a server, so it is safe to paste payloads that contain tokens or personal data.
How to use it
- Paste JSON or open a .json file.
- Pick indentation and whether to sort keys.
- Copy or download the formatted JSON.
Good to know
- Numbers larger than 2^53 lose precision when parsed by JavaScript; keep big IDs as strings.
- Comments and trailing commas are not valid JSON and will be reported as errors.