This is how you can check for HTML5 Canvas support in your browser by using JavaScript, there’s no need of an external library like Modernizer to do a simple check like this. In fact most of the feature checks can be done natively, that’s what I prefer. For the full post download this file or visit the actual blog post link: http://jbkflex.wordpress.com/2013/05/02/html5-canvas-support-check-using-javascript-the-simple-way/