The lxml XML toolkit for Python
Fast streaming XML parser written in C99 with >90% test coverage
The Microsoft Build Engine (MSBuild) build platform for .NET and VS
Simple REST and HTTP API Client for .NET
A small library for converting tokenized PHP source code into XML
Go package for easily rendering JSON, XML, binary data, and HTML
Generate C# classes from XML Schema files
Command-line XML and HTML beautifier and content extractor
Go (golang) library for reading and writing XLSX files
A fast, high-level web crawling and web scraping framework
MyBatis SQL mapper framework for Java
A library to handle Apple Property List format in binary or XML
jQuery plugin to export a html table to JSON, XML, CSV, TSV, TXT, SQL
A popular high-performance JSON framework for .NET
Eases DOM navigation for HTML and XML documents
A fast and lightweight IDE
PHP library for easy 'jQuery like' DOM traversing and manipulation
Fast XML parser library in C
Self-hosted collection of powerful web-based tools for everyday tasks
MLT Multimedia Framework
High performance, open source universal RPC framework
An extensible multilanguage static code analyzer
An opinionated framework for creating REST-like APIs in Ruby
Open-source, cross platform Qt based IDE for reverse-engineering