JSON vs XML: Which Is Better? Full Comparison
JSON vs XML comparison: syntax, performance, parsing speed, use cases, and when to use each format in APIs, configs, and data exchange.
JSON vs XML: Side by Side
JSON is lighter, faster to parse, and native to JavaScript. XML is more verbose but supports schemas, namespaces, and mixed content. For REST APIs, JSON wins. For document markup and SOAP services, XML is still used.
Performance Comparison
JSON parsing is 10-100x faster than XML across languages because JSON maps directly to native data structures (objects, arrays) while XML requires tree traversal.
When to Use JSON
- REST APIs and web services
- Configuration files (with YAML as alternative when comments needed)
- Data storage and NoSQL databases
When to Use XML
- SOAP web services
- Document formats (HTML, SVG, RSS)
- Complex data with attributes and mixed content
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