JSON is the lingua franca of APIs. When a payload is minified or broken, a formatter turns it into indented structure and highlights syntax errors so you can fix them fast.
Format vs minify
Format adds whitespace for humans. Minify removes it for smaller bodies. Both should preserve the same data model when the input is valid JSON.
Common mistakes
- Trailing commas after the last property
- Single-quoted strings (use double quotes)
undefinedor functions — not valid JSON values
Try the JSON Formatter, compare objects with JSON Diff, or generate types via the Schema Generator.