JSON Formatter & Validator
Paste messy or minified JSON, and get a clean, indented, validated version back instantly.
Input JSON
Formatted output
Why format JSON?
JSON returned from APIs is often minified — all on one line with no spacing — to save bandwidth. That's efficient for machines but hard for humans to read. Formatting adds consistent indentation so nested objects and arrays are easy to scan, which makes debugging API responses or config files much faster.