JSON Formatter & Validator
Beautify or minify JSON data instantly.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is the primary format for data exchange in modern REST APIs and NoSQL databases.
Why use a Formatter?
Raw JSON data often comes "minified" (removed of all whitespace) to save bandwidth. While efficient, this is unreadable to developers debugging an issue. Our tool solves this by:
- Pretty Printing: Adding proper indentation (2 spaces or 4 spaces) and newlines to reveal the structure.
- Error Detection: Instantly flagging syntax errors like trailing commas, missing quotes, or mismatched brackets.
- Tree Visualization: helping you understand nested objects and arrays at a glance.
Validation features
Strict JSON standards require double quotes for keys and strings, and do not allow trailing commas. This tool validates your input against RFC 8259 standards to ensure your JSON is ready for production APIs.