Generate a noise map with this.
By ajusting the Sliders you can modify the output of the Noise
You can also update the Seed of the noise if you want.
You can download the map either by right clicking it (Resolution = 250x500)
or you can enter your desired Resolution (just one Numer, for example 400, Map will be 400x400)
Note that I had to limit the max resolution of the downloadable noise maps to 2000 by 2000 pixels
because otherwise it would take to long to process and your browser might run very slow due to it.