MaxStack
by CHfanxin
MaxStack raises the stack limit of most items from 64 up to 9999 on Fabric, and it is built to be lightweight.
What it does
Most items that normally stack to 64 can be stacked up to 9999 once the mod is installed. A stack limit is set per item type, so the change applies to the items the mod covers rather than to every item in the game. Both the server and every player need the mod, because stack sizes are synchronized between them. Files cover 10 release versions, 1.21.6 – 26.2, for Fabric only, and the mod is released under All rights reserved, so it is not open source.
Key features
Stack limit up to 9999
Most items that normally stack to 64 can hold up to 9999 in a single slot.
Lightweight design
The mod changes stack limits and does little else, keeping its footprint small.
Per-type stack limits
The maximum stack size is set for each item type, so the change is applied item by item.
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x6 of 6 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Stackable (items too) is a Fabric mod for 1.20.1 – 1.20.6 that runs on client and server and is released under CC0 1.0 Universal, so its code is not restricted. Hotbar Inventory Transfer works for 1.21 – 26.2 under CC0 1.0 Universal and is client-side only, so it is not a stack-size mod.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| MaxStack | Fabric | 1.21.6 – 26.2 | Client and server | 2026-08-28 |
| Stackable (items too) | Fabric | 1.20.1 – 1.20.6 | Client and server | 2026-03-30 |
| Hotbar Inventory Transfer | Fabric | 1.21 – 26.2 | Client-side only | 2026-07-18 |
Questions
Does MaxStack need to be installed on the server?
Which versions does MaxStack support?
In the catalog
MaxStack is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 13,894 mods support Minecraft 26.2.
More from CHfanxin
Similar mods
What the author says
EN：This is an amazing mod that changes the original stacking limit. You just need to type /max stack [number] to set the stack limit, up to a maximum of 9999, and it really works. The mod is built to be lightweight and easy to use. Hope you enjoy it! 中文：这是一个令人惊叹的模组，他修改了原版的堆叠上限，你只需要输入/max stack…
Official listing
- Modrinth page
- modrinth.com/mod/maxstack
- Owner
- CHfanxin
- Published
- 2026-08-28
- Updated on Modrinth
- 2026-08-28
- Facts verified
- 2026-10-15