Microsoft Office Access - Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.
scriptcs - scriptcs makes it easy to write and execute C# with a simple text editor.
LiveCode Platform - It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...
Ecere SDK - A cross-platform Software Development Kit including a GUI toolkit, a 2D/3D graphics engine, a...
ESM Tools - ESM Tools is a powerful and widely known software development platform that comes with a centralized model infrastructure, providing the common frame for compiling, running, downloading, and organizing models (ones or multiple).
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.