HitboxBackport
Modby Kwember
A small Mixin-type mod to backport sneaking through 1.5 block tall spaces from minecraft 1.13 and higher versions.
Type
Mod
CurseForge Downloads
1,530
CurseForge ID
1188561
Last Updated
Jul 25, 2026
Description
Hitbox Backport
A small Mixin-type mod to backport sneaking through 1.5 block tall spaces from minecraft 1.13 and higher versions.
The Minecraft 1.13 update included a change to the players hitbox when sneaking, allowing players to sneak under top slabs into 1.5 block tall spaces, this change was part a larger movement change for swimming, crawling and sneaking. This mod uses mixins to vanilla Minecraft's code to backport this change to sneaking to 1.12.2.
- REQUIRES A MIXIN LOADER (Like MixinBooter)
If you find any issues or bug in the mod, please report them on the GitHub issues page!
Authors note: While there are a few mods that backport 1.13 swimming, crawling and sneaking in its entirety, i noticed that there werent any mods that backported just the sneak mechanic. As such i made this mod for those who are just looking for this feature.
Recommended Gear
AffiliateHardware and extras that pair well with this mod.
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Screenshots
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