eXeMeL
- XML browser in Alpha testing stage; comments welcome.
- http://freespace.virgin.net/simon.maticlangford/

XSBrowser
- Open source browser that creates a human readable document model from a given DTD or XML schema.
- http://www.lumrix.net/

X-Smiles
- X-Smiles is a Java based Open Source XML browser capable of displaying documents written in various XML languages.
- http://www.xsmiles.org/

XNGR XML Browser
- An open source browser and editor framework written in Java. Development information and downloads.
- http://www.xngr.org/

Voice Browsers - W3C Note
- This note describes features needed for effective interaction with Web browsers that are based upon voice input and output.
- http://www.w3.org/TR/NOTE-voice

DocZilla
- DocZilla is an SGML/HyTime-enables browser based on the Mozilla Gecko rendering engine. Support for SGML, HyTime, CALS tables, RDF, and Xlink is currently being worked on.
- http://www.doczilla.com/