Generate favicon for website on Windows

favicongenerator.bat

@echo off
setlocal enabledelayedexpansion

set IMAGE=favicon.png
set OUTPUT=favicon.ico
set SIZES=16 32 64 128 192 256

:: Create a temporary directory for resized images
set TEMP_DIR=%~dp0temp_ico
mkdir "!TEMP_DIR!"

:: Resize the image to each size and save temporarily
for %%s in (%SIZES%) do (
  magick "!IMAGE!" -resize %%sx%%s "!TEMP_DIR!\%%s.png"
)

:: Combine all resized images into a single ICO file
magick "!TEMP_DIR!\*.png" "!OUTPUT!"

:: Clean up the temporary directory
rd /s /q "!TEMP_DIR!"