You can try more examples here:

http://www.stagexl.org/samples/

And you can look at some source code examples here:

https://github.com/bp74/StageXL_Samples

And StageXL also supports runtimes for Spine, Dragenbones, Flump, ...:

https://github.com/bp74/StageXL_Spine

https://github.com/bp74/StageXL_DragonBones

https://github.com/bp74/StageXL_Flump

https://github.com/bp74/StageXL_BitmapFont

This is pretty cool! Being able to use Dart easily and comfortable will go a long way I think.

Especially with new things like the Flutter toolkit for mobile apps, it'll be nice to have something like StageXL for porting those games to browser or from the browser to apps, etc.

Dart gives me the feeling that it'll be easy to port my code to another platform later. Nice and simple, but plenty fast enough and with good lang features.

I'm on a Chromebook, and none of the performance demos seem to work... nothing renders or happens at all

StageXL started as an easy migration path for Adobe Flash developers and their products to HTML5. Therefore StageXL provides the same display list API you may have used in Flash for many years. Furthermore the Dart programming language is easy to use for everyone who is familiar with ActionScript.

CreateJS is the same concept but with Javascript.

Yes, CreateJS was one of the first libraries providing a Flash display list in HTML5. But CreateJS uses the Canvas2D api and a very limited WebGL implementation. StageXL provides much more features with full WebGL support.

Seems similar to Pixi js. I like that Pixi uses WebGL though, with a canvas fallback. It also uses a Flash-esque API

StageXL does also use WebGL with a fallback to Canvas. Fortunately, most browsers supports WebGL nowadays.

Is there a feature comparison with Pixi somewhere? Why would one pick StageXL over Pixi, for example?

Sorry i missed your second question. I would choose StageXL over PixiJS because auf the Dart language. I also use TypeScript for other project but i prefer Dart. The Dart-to-JavaScript compiler does an awesome job. It not only transpiles Dart code to JavaScript (like the TypeScript compiler does for TypeScript) but it's a real compiler with great optimization and minification. The optimizations include inlining, dead code removal, hoisting, etc. The resulting JavaScript code is not pretty to look at, but pretty damned fast at runtime.

Thank you for both of your replies

Unfortunately no, but i'm not aware of any major feature that is not supported in comparision to Pixi.js. If you find something missing in StageXL i'm happy to receive a feature request :)

It does pretty well on the always-entertaining bunny benchmark! http://www.stagexl.org/samples/bunny_bench/ (You'll want to click and hold because clicking to try and get the FPS below 60 soon gets tedious.)

I always found the Display List in Flash to be a pleasant thing to work with.

There is also an updated version of this benchmark: http://www.stagexl.org/example/benchmark/bunny_mark/

That benchmark is amazing. I remember wanting to prototype an HTML5 tower defense game a number of years back but couldn't overcome the performance issues as more and more sprites were added. I may need to revisit...

Using this to port games from Flash. Would highly recommend.

Sneak Peek on a StageXL framework I am working on: http://rockdot.sounddesignz.com/template/

Screen Management + Responsive Layouts + Material Design UI library + Spring Application Context (IoC/DI) + MVC/Commands + Physics + Google API + Facebook API + whatnot.

To kind of prove that the Dart2JS compiler is amazing: What you see comes in 230KiB gzipped.

Also make sure to check out the button to the upper right. If it does magic, you're on WebGL.

Github: https://github.com/blockforest/rockdot-generator

would be fun to port Portal 2D: http://portal.wecreatestuff.com/