Why formatting JSON helps
Raw JSON can be difficult to read when it arrives on one long line. Formatting adds indentation and line breaks so objects, arrays, keys, and values are easier to inspect. Validation checks whether the text is valid JSON before you paste it into code, a request body, or documentation.
Good times to use a formatter
- Reviewing an API response.
- Cleaning a configuration sample.
- Checking a webhook payload before sharing it with a teammate.
- Finding the location of a syntax error.
Common mistakes
Do not paste production secrets, private tokens, or customer data into any online tool unless you understand how it is processed. If the data is sensitive, use a local-only tool or redact the private parts first.
FAQ
Does formatting change the data?
It should not change the values. It changes spacing and layout so the structure is readable.
What usually breaks JSON?
Missing quotes around keys, trailing commas, unescaped line breaks, and mismatched brackets are common causes.