HitboxBackport
A small Mixin-type mod to backport sneaking through 1.5 block tall spaces from minecraft 1.13 and higher versions.
⬇ Download on ModrinthHitbox 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.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.12.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as PlayerHitBoxBackport-1.0.3.jar — drop this file into the mods folder
- Download size: 8 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.