StacKit Mod (1.21.1, 1.21) – Make Unstackable Items Stackable
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ DownloadMany items in the game cannot be stacked and take up an entire inventory slot by themselves. This includes items like the Totem of Undying, which will take a lot of inventory slots if you want to carry a large number of them. StacKit Mod is here with a solution for this. This mod allows you to make unstackable items stackable. With this mod installed, you can store upto 16 Totems of Undying in a single inventory slot. You can hold 16 Totems in your offhand and they will activate one after the other, essentially making you invincible. The stack limit can be edited in the config file to make any item in the game stackable.
Features:
- Makes unstackable items stackable.
- Stack upto 16 Totems in your offhand.
- The configuration file allows you to edit stack sizes for any item in the game.
Screenshots:
StacKit Mod Download Links
For Minecraft 1.21.1, 1.21
Fabric version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 200051.mcaddon
- Download size: 10 KB
- Download link checked 17 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.