When comparing Pixi.js vs GraphicsJS, the Slant community recommends GraphicsJS for most people. In the question“What are the best JavaScript drawing libraries?” GraphicsJS is ranked 10th while Pixi.js is ranked 12th. The most important reason people chose GraphicsJS is:
Not only Bezier curves but also any lines, shapes, arcs, etc. out-of-the-box.
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Pros
Pro Supports WebGL w/ canvas fallback
Pixi is a WebGL renderer, but can fall back to canvas if WebGL is not supported or turned off.
Pro Will be familiar to ActionScript developers
Pixi.js uses a code structure that's very similar to ActionScript.
Pro Powerful line drawing
Not only Bezier curves but also any lines, shapes, arcs, etc. out-of-the-box.
Pro Convenient API
Clear and concise API with chaining support.
Pro Virtual DOM
Rapid drawing. Only what is necessary is drawn.
Pro Has its own transformation engine
No need to use embarrassing in-browser transformations.
Pro Legacy browser support
IE6+.
Pro Smart layering system
With z-index.
Pro Rich text features
Multiline text support, text measurement, wrap, indent, spacing, align, etc.
Pro Full accessibility (Section 508)
Pro Events support
All browser events are dispatched in the same way in virtual DOM structure also.
Cons
Con Not a complete solution
Pixi only provides the renderer.