WebCL is a new standard of the Khronos Group that allows web applications to benefit from the massive power of todays GPUs. It is based on OpenCL, like WebGL is based on OpenGL. Recently, I wrote a small demo that shows how WebCL can be used in image processing. I decided to implement the Edge-Avoiding À-Trous Wavelet transformation, as the algorithm is simple and gives very nice results. You need the Nokia WebCL plugin for Firefox to run the demo.