Open Source
OpenFL is free, open-source, and MIT-licensed — with no hidden fees, royalty models, or usage restrictions. You own your code, your builds, and your publishing rights.
Its ecosystem is maintained by an active community of developers, indie studios, and contributors from around the world. You’re not locked into a walled garden — you’re part of a growing, transparent, developer-first movement that puts power back in your hands.
Reliability
With over a decade of active development and thousands of shipped projects, OpenFL is time-tested and stable. It has powered commercial releases, educational tools, medical interfaces, and indie games across nearly every major platform.
Backed by rigorous community testing, long-term maintainers, and real-world production deployments, OpenFL is a framework you can trust — from prototype to product launch.
Robust API
Based on the familiar Flash API (DisplayObject, Sprite, MovieClip, etc.), OpenFL offers a high-level programming model that makes interactive applications easy to build and reason about. But it's more than nostalgia — the API is fully extensible, modular, and cross-compatible.
From rendering and events to audio, input, and asset management, the OpenFL API helps you build fast and ship clean. Want something lower-level? Drop into OpenGL or Stage3D when you need direct control.
Libraries and Extension
OpenFL works seamlessly with hundreds of libraries and extensions from the Haxe ecosystem. Physics engines, particle systems, UI kits, audio systems, tweening, entity-component frameworks — if you need it, there’s probably a haxelib for it.
Need native functionality? Add platform-specific code using conditional compilation or integrate third-party C/C++ libraries when building natively — no need to hack the engine core.
Documentation
OpenFL has comprehensive docs, tutorials, and examples to help you get started quickly and scale up fast. Whether you're a beginner exploring the display list or an experienced developer diving into shader pipelines, there are guides to match your level.
Haxe's powerful type system, Dox-generated API docs, and autocomplete-ready metadata help keep the documentation close to the code — so you're always just a click away from what you need.
