Introduction
JSON and XML are two popular data interchange formats. This guide compares their strengths and use cases.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight, easy-to-read data format. Born from JavaScript, it's now language-agnostic.
What is XML?
XML (eXtensible Markup Language) is a markup language designed for document storage and transport. More verbose than JSON.
JSON vs XML: Key Differences
Syntax Comparison
JSON uses key-value pairs with curly braces. XML uses opening/closing tags. JSON is more compact.
Readability
JSON is generally easier to read for humans. XML has more overhead with closing tags.
Data Types
JSON supports strings, numbers, booleans, arrays, objects, null. XML treats everything as strings.
When to Use JSON
Use JSON for APIs, web services, configuration files, and when you need lightweight data transfer.
When to Use XML
Use XML for document markup, complex hierarchies with metadata, SOAP services, and legacy systems.
Performance Comparison
JSON parsing is typically faster. Smaller payload size. XML has more overhead but better for complex documents.
Tools and Ecosystem
Try our JSON Editor to work with JSON files, or use our XML to JSON converter.
Conclusion
Choose JSON for modern APIs and lightweight data. Choose XML for documents and complex metadata.