I created this favicon generator a few weeks ago to generate minimal favicons for my side projects. I'm not good with design tools so it saves me time when I start a new project and want a simple favicon in ICO format.

I'm proud of it because it's server-less. I generate the multi-BMP ICO file in binary using ArrayBuffers and Typed Arrays in JavaScript. I use a <canvas> element to create the images/design.

It's not very polished and I'm sure there are bugs, but feedback would be appreciated!