Common Lisp compiler and runtime
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A cross-platform GUI library
The PHP Framework For Web Artisans
The DB Browser for SQLite
Browser automation framework and ecosystem
Programmer-friendly testing framework for Java and the JVM
A pure PHP library for reading and writing spreadsheet files
Command-line shell and scripting language built on .NET
Simple handling of a tomcat server in Eclipse IDE
Market leading real time kernel for 40+ microcontroller architectures
Cross-platform tool to build, test and package software
Dynamic instrumentation toolkit for developers
Open-source electronics platform
A free COBOL compiler
Dev-C++ with wxWidgets designer