JSON Formatter & Validator
Beautify, minify, and validate JSON. Detects syntax errors and shows them with line numbers. All processing is done in your browser.
What Is a JSON Formatter?
A JSON formatter (also called a JSON beautifier) takes compact or unreadable JSON text and adds proper indentation and line breaks, making it easy to read and debug. A JSON validator checks whether the input conforms to the JSON specification (RFC 8259) and reports any syntax errors.
🔧 Common Use Cases
- API Debugging — Format raw API response bodies for quick inspection.
- Config Files — Beautify minified
package.json,tsconfig.json, or settings files. - Data Exchange — Minify JSON before including it in source code to reduce size.