Fabric.js vs GraphicsJS

Fabric supports node.js, and has an npm package available for server side rendering with all the dependencies handled for you. This allows you to provide graceful degradation for image fallbacks to canvas or SVG content.

Drawing objects in fabric are vector focused, so everything is easily transformable. It makes it easy to create complex pathed shapes, add gradients, or filters. Although fabric is great for vector rendering, it also has image support as well.

When it comes to format compatibility, Fabric is the best, with the ability to output to Canvas, SVG, and JSON. SVG provides backwards compatibility for older browsers, and JSON allows you to store rendered output for later use.

If you are about to customize the library to your needs, this is the project of choice! Great programming work!

Allows creating multi-line text that can even be interactively edited by user interaction.

If the node-canvas dependency is a problem you can now look for npm install fabric@x.y.z-browser

Not only Bezier curves but also any lines, shapes, arcs, etc. out-of-the-box.

Clear and concise API with chaining support.

Rapid drawing. Only what is necessary is drawn.

No need to use embarrassing in-browser transformations.

IE6+.

With z-index.

Multiline text support, text measurement, wrap, indent, spacing, align, etc.

All browser events are dispatched in the same way in virtual DOM structure also.