Install Minecraft Java Edition
Check your Minecraft version
Install a mod loader like Fabric, Forge, or Quilt
Download the correct mod loader for your Minecraft version
Run the installer and install the mod loader
Open the Minecraft Launcher
Select the mod loader profile
Launch the game once
Download mods that match your Minecraft version and mod loader
Open the Minecraft mods folder
Place the mod files into the mods folder
Start Minecraft with the mod loader profile
Verify the mods appear and work in-game
Back up your worlds before adding or removing mods
Keep mods, mod loader, and Minecraft version compatible