Based on https://github.com/jaretburkett/electron-icon-maker.

• Node.js >= 14
• npm (preinstalled) or yarn

ℹ️ This is a hybrid CommonJS / ESM module.

Run yarn global add @ffflorian/electron-icon-generator or npm i -g @ffflorian/electron-icon-generator

electron-icon-generator --input /path/to/image.png --output /path/to/folder

Usage: electron-icon-generator [options]

An icon generator to generate all the icon files needed for electron packaging

Options:
  -V, --version          output the version number
  -i, --input <file>     Input PNG file (recommended size: 1024x1024) (default: "./icon.png")
  -o, --output <folder>  Folder to output new icons folder (default: "./")
  -s, --silent           Don't log anything beside errors
  -h, --help             output usage information

Input file should be 1024*1024px or larger. Make sure it is a 1:1 aspect ratio on width to height.

[output dir]
  -[icons]
    -[mac]
      - icon.icns
      -[png]
        - 16x16.png
        - 24x24.png
          ...
        - 512x512.png
        - 1024x1024.png
      -[win]
        -icon.ico