How to validate JSON before formatting

When a payload will not parse, formatting is not the first job. Validation is.

Start with correctness

If the JSON is invalid, a formatter can only take you so far. First confirm whether the structure can be parsed at all, then move into formatting once you know the payload is structurally sound.

Recommended sequence

  1. Paste the payload into the JSON validator.
  2. Fix missing commas, quotes, braces, or brackets until the validator passes.
  3. Then open the JSON formatter to make the payload readable for debugging or review.

Why this page exists

Searchers often use json formatter and json validator interchangeably. In practice they solve two different jobs, and this guide clarifies the workflow.