Softer Hay Bales
Requires the library mod Collective.
This mod is part of The Vanilla Experience.
Softer Hay Bales is a drag-and-drop mod which makes hay bales negate fall damage entirely, Assassin's Creed style.
You can freely jump off the highest tower in your world without a worry.
You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge ecosystem.
Serilum.com contains an overview and more information on all mods available.
Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!