The lxml XML toolkit for Python
Fast streaming XML parser written in C99 with >90% test coverage
Go package for easily rendering JSON, XML, binary data, and HTML
The Microsoft Build Engine (MSBuild) build platform for .NET and VS
A library to handle Apple Property List format in binary or XML
An extensible multilanguage static code analyzer
MyBatis SQL mapper framework for Java
Simple REST and HTTP API Client for .NET
Command-line XML and HTML beautifier and content extractor
Generate C# classes from XML Schema files
A popular high-performance JSON framework for .NET
High performance, open source universal RPC framework
Eases DOM navigation for HTML and XML documents
A fast and lightweight IDE
MLT Multimedia Framework
jQuery plugin to export a html table to JSON, XML, CSV, TSV, TXT, SQL
Helps you find, load, combine, autofill and validate configuration
Collection, processing, and rendering functionality for PHP code
Jekyll HTML/XML/CSS/JS Minifier utilising yui-compressor
Open-source, cross platform Qt based IDE for reverse-engineering
A fast, high-level web crawling and web scraping framework
Fast XML parser library in C
PHP library for easy 'jQuery like' DOM traversing and manipulation
YamlDotNet is a .NET library for YAML
Pure Clojure/Script logging library