RFTL Vanilla Edition Data Pack helps you to craft leather with rotten flesh. RFTL is shortened of Rotten Flesh to Leather. Now rotten flesh is more useful besides some uses you have already known such as breeding wolves or trading with villagers. All you have to do is put rotten flesh into a furnace and add some coal in it. Why are you waiting for the RFTL Forge Mod while you can download it and install right now without Forge?
How to Install:
Please visit the following link for full instructions: How To Download & Install Data Packs
RFTL Vanilla Edition Data Pack Download Links:
For Minecraft 1.13.2