This is a simple JavaScript project that implements 2D FFT and IFFT functions. For a usage example, see the benchmark() function in index.html.

The implementation is based on the Kiss FFT library, which has been compiled to JavaScript using emscripten. This is the first time I've used Kiss or emscripten, so expect bugs. Works for me™ in Firefox 44 and Chrome 48.

$ git clone https://github.com/frederikhermans/js-kiss-fft2
$ python -m SimpleHTTPServer

Open http://localhost:8000 in your browser, click the "Benchmark" button.

To build the library yourself, you need emcc on your $PATH. Just run:

$ make

• Simplify memory handling
• Compare performance to other JavaScript 2D FFT libraries