JSON Validator & Formatter

What it does

Check whether pasted JSON can be parsed, inspect validation feedback, and format valid data for easier reading. It checks JSON syntax, not an application-specific schema.

How to use it

1. Paste or type JSON into the editor.
2. Review parse feedback, then format valid JSON with the available indentation setting.
3. Copy or download the formatted output when you are ready to use it.

Useful for

• Debugging malformed API responses or configuration files.
• Pretty-printing compact JSON before reviewing or sharing it.