The lxml XML toolkit for Python
Dynamic, functional language designed for building scalable apps
Lexbor is development of an open source HTML Renderer library
Development toolkit for Web Services and XML data bindings for C & C++
ETL engine based on Groovy
Change encoding of text files.
C++ library for creating XLSX files for MS Excel 2007 and above.
Simple C++ XML processing
eXist-db is a feature rich Open Source native XML database
Pure Java HTML / CSS rendering engine
PDF Library for Developers
Modular JSON by trees and branches, pointers and patches
A framework for build smooth asynchronous iOS APP
DocBook Editing and Processing for Eclipse
Java RDF Framework