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Stackable

Stackable is a mod that increases all block stacking limits to any value less than 127 for Minecraft 1.20.4-1.19.2 and 2.147B for versions after 1.20.6

FabricNeoForgeForge
Loaders
FabricNeoForgeForge
Downloads on Modrinth
382K
Followers on Modrinth
182
versions
57
Updated
September 30, 2026Sep 30
Published
in 2023
Stack sizes of 127 — Most of vanilla objects should work with the 127 stack sizes. · swipe

At a glance

Runs on Fabric, NeoForge and Forge
For Minecraft 1.21.8–26.1, 26.1.2–26.3 …
Needed in the game and on the server
Latest version — 2.1.1 from September 30, 2026
Requires Fabric API
License CC0-1.0 — free
Where it's needed
In gamerequiredOn serverrequired

Needed both in the game and on the server

Game versions1.21.3–1.21.5, 1.21.8–26.1, 26.1.2–26.3 …

Stackable

Stackable is a mod that increases all block stacking limits to any value less than 127 for Minecraft 1.19.2-1.20.4 and 2.147B in 1.20.6+.

Why 127?

Effectively, I'm lazy, but in reality, Minecraft stores all items with a single signed byte which for our purposes only can be between -128 to 127, since negative values are invalid that leaves a maximum stack size of 127. Moreover, this mod is intended to be compatible with other mods which may also use signed bytes to store items.

Why make this mod

I don't know, other mods already exist that allow for stack sizes above 127. This was more for experimentation with creating mixins and understanding Minecrafts code a little better.

Will you update to X?

Maybe.

Will you backport to X?

Eh, not really.

There's a bug here?

I might fix bugs that are Vanilla specific, but mod compatibility is gonna be kinda hard to do

Mod support?

This mod should be compatible with most other mods, I've tested this mod in all of Fabric Orion, and it generally works, some blocks will limit their storage size to 64 but shouldn't crash. Most of my mixins to the code surround editing the interface that all inventory mods should implement to begin with, so if they call the stack size from that interface they should receive the appropriate value.

FAQ

How to install Stackable?

Install Fabric for your Minecraft version, download Stackable for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Stackable support?

Stackable has builds for Minecraft 1.19.4–1.21.1, 1.21.3–1.21.5, 1.21.8–26.1, 26.1.2–26.3 ….

Is Stackable needed on the server?

Needed in the game and on the server

License and source
Creative Commons Zero v1.0 Universalfree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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