XSLT: Not Legacy, But Underrated XML Transformation Powerhouse

2025-07-21

While JSON and microservices dominate modern development, XML and its transformation language, XSLT, quietly power enterprise systems in finance, healthcare, and more. Many teams mistakenly replace XSLT with verbose procedural code, leading to slower development cycles and underperforming systems. This article highlights XSLT's advantages: declarative pattern matching, efficient memory usage (via streaming), powerful XPath querying, modular design, error handling, and interoperability with non-XML data like JSON. XSLT 3.0 enhances its capabilities for modern data challenges. The author advocates for appreciating XSLT's strengths and using skilled developers to leverage its power for efficient and robust systems.

Development Data Transformation