WebGL (a 3D graphics library built into browsers) has for some years had the promise of becoming the next way of implementing 3D visualisation web-applications. While the benefits of WebGL are clear - a barrier-free user experience on any browser without installation of any plug-ins - the limited support by the browser vendors as well as the performance and feature gaps to the plug-in-technologies has so far slowed down the technology adoption. In our testing of various implementations we have now seen these issues diminished and believe that in 2015 WebGL will become the mainstream alternative for 3D visualisation solutions.