To install these mods, you'll need to use a free add-on called Minecraft Forge. This will let you customize Minecraft: Java Edition with mods.

What is Minecraft Forge? Minecraft Forge is a free mod management tool for Minecraft Java Edition players which allows them to install Minecraft mods.

How to Buy and Install Minecraft on (Almost) Anything: Where to Download, What Version, and More Punch a tree.