Current State of Javascript Canvas Libraries? [closed]

Disclaimer: I'm the author of Fabric.js.

I would say that Easel.js, Fabric.js, and Paper.js are among the most used at the moment. I'm judging by the number of Github watchers for each repository, volume of discussion in their Google Groups, and how often I hear about them used as canvas libraries on Twitter.

These are also the ones with more or less decent documentation, examples/demos, discussion groups, and unit tests (the state of testing in most other canvas libraries is pretty sad).

I'm also maintaining this comparison table of various canvas libraries, where you can see how recently the library was updated, its size, support for IE<9 or node.js, and more.

EDIT: KineticJS is no longer being actively maintained.

Disclaimer: I created KineticJS

KineticJS is actually doing pretty well. You can find the source code at Github, where it is starred by 2180 people at the moment.

It can handle thousands of concurrent shapes:

10,000 drag and drop stress test: http://www.html5canvastutorials.com/labs/html5-canvas-kineticjs-drag-and-drop-stress-test-with-1000-shapes/

10,000 shapes with tooltips: http://www.html5canvastutorials.com/labs/html5-canvas-10000-shape-stress-test-with-kineticjs/

It has very good event support, including mobile events, and it has a pretty solid suite of 100's of unit tests so the code base feels pretty solid.

kangax: P.S. awesome work with fabric.js! Other than KineticJS (of course), my other two favorite libraries are fabric and paper.