JSON Formatter & Validator
❌ Invalid JSON:
✅ JSON is Valid!
Why Format and Validate JSON?
JSON (JavaScript Object Notation) is the standard data interchange format used by APIs, web servers, and blockchain configuration files. However, compact machine-generated JSON is hard for humans to read, debug, or edit.
Formatting JSON adds indentation and line breaks, turning dense strings into readable trees. Validating verifies that the code complies with JSON specifications (requiring double quotes, trailing comma exclusions, etc.).
Safe client-side verification
Many online JSON beautifiers send your code to their backend servers. Because JSON often contains sensitive API responses, private parameters, or configurations, this exposes key data. This formatter runs 100% locally in your browser so your inputs never leave your device.