NanoXML is a very small (5KB!) XML parser for Java. It currently performs no validation (the DTD is ignored).

MinML is an XML parser written in Java. It was written to be used in embedded Java systems where storage space is at a premium. The code is quite compact, but MinML was also designed to minimise the heap space used by the program when parsing a document. MinML does not support DTDs - MinML reads and ignores DTDs, and Mixed content - this is not allowed. Supported features are: Attributes, Empty elements, Entity references, Character references, and CDATA sections.

XML Parser for Java is a validating XML parser written in 100% pure Java. The package (com.ibm.xml.parser) contains classes and methods for parsing, generating, manipulating, and validating XML documents. XML Parser for Java is believed to be the most robust XML processor currently available and conforms most closely to the XML 1.0 Recommendation.