Fall 'N' Roll Add-on 1.21+

Mod Fall 'N' Roll adds a unique roll mechanic when falling in Minecraft. If you hit jump a second before landing, you'll avoid fall damage. A great solution for those who love parkour and dynamic movement.

If a player falls from a height that usually deals damage, they can press the jump button right before hitting the ground to perform a roll and avoid damage. The player will receive a small speed boost.