Literally Canvas

Create custom HTML-canvas

Screenshots

Hunter's comment

Literally Canvas is an extensible, open source (BSD-licensed), HTML5 drawing widget. You can use it to embed drawing boards in web pages. source

Literally Canvas gives users the capability to construct drawings and export or embed the drawings in web pages.

Literally Canvas can be viewed as an extensible MS Paint in JavaScript. With this tool, you can sketch drawings and d everything you would while drawing with this tool.

Literally Canvas’s features:

Basic drawing tools

Saving and loading JSON

API to add more drawing tools

Panning & zooming

Background images/shapes and watermarks

Retina support

Exporting drawings to PNG and SVG. source

Image source