When comparing OpenFL vs MelonJS, the Slant community recommends MelonJS for most people. In the question“What are the best HTML5/JavaScript frameworks for web-based games?” MelonJS is ranked 7th while OpenFL is ranked 8th. The most important reason people chose MelonJS is:
Devs help resolve issues in a timely manner and are friendly throughout the process.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Cross-platform
Web, desktop (win, osx, linux) and mobile (android, ios) targets are all supported at native speeds.
Pro Good support
Devs help resolve issues in a timely manner and are friendly throughout the process.
Pro Tiled support
Natively integrates Tiled map editor. Tiled is a free, open-source map editor that supports orthogonal, isometric and staggered maps.
Pro Good docs
The documentation is intuitively structured and comprehensive allowing you to quickly find information about the engine.
Pro Has tutorials to help you get started
To understand basics of MelonJS, the developers maintain 2 tutorials that are available on the site.
Pro Javascript (and webGL support in latest version)
Cons
Con Hasn't matured yet
OpenFL is a relatively young framework and unexpected behaviour can still be encountered.
Con API breaks all the time
API breaks are common between version changes.