FlashDevelop is an integrated development environment (IDE) for development of Adobe Flash websites, web applications, desktop applications and video games. Developed by flashdevelop
License: Open Source
Stencyl is a game development platform that emphasizes visual scripting and ease of use, making it ideal for beginners and those looking to create 2D games without extensive coding knowledge. FlashDevelop, on the other hand, is a powerful coding environment aimed at experienced developers who prefer more control and flexibility in their projects, supporting various programming languages and offering advanced debugging tools.