Bigstacks
by Nertflik
Bigstacks lifts the usual cap on how many of one item a single inventory slot can hold, which lets players group bulk materials into fewer slots.
What it does
Bigstacks removes the standard stack cap and replaces it with a maximum that the player or server owner sets. Items can be grouped into larger stacks, so fewer slots are needed for bulk materials. Custom rules can target specific items, which means a value can differ from one item to the next rather than applying to the whole inventory.
Configuration happens through a config file and through a bigstacks command. Running the command opens a settings menu where the stack size and the increased-stack option can be adjusted. The increased stack sizes can be switched on or off, and values such as 128 or 256 or higher can be chosen as the maximum. The mod works on servers, where the server owner decides the limits for everyone who joins.
Bigstacks is built for NeoForge 1.21.1 only and runs on client and server, so both the server and every player need it. It is not open source and is released as All rights reserved. Bigstacks was first published on 2026-06-21 and was last updated on 2026-09-19, when version 2.0.0 for 1.21.1 became the latest file.
Key features
Raised stack limit
The default cap of 64 items per stack is removed, and the maximum can be set to a higher value.
Per-item rules
Custom rules apply to specific items, so one item can stack higher than the rest of the inventory.
Settings menu
The bigstacks command opens a menu where the stack size and the increased-stack option are adjusted.
Config file control
The same values can be set in the config file, which lets a server owner fix limits before players join.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Bigstacks have to be installed on the server?
Which loader does Bigstacks support?
Can the stack size be changed after the game starts?
In the catalog
Bigstacks is one of 29,952 Game mechanics mods on ModsFinder, and one of 12,140 Game mechanics mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
BigStacks is a mod for NeoForge 1.21.1 that increases the stack size of items in the inventory. It removes the default limit of 64 items per stack and allows you to configure the maximum stack size through a config file or with the /bigstacks command.
Official listing
- Modrinth page
- modrinth.com/mod/bigstacks
- Owner
- Nertflik
- Published
- 2026-06-21
- Updated on Modrinth
- 2026-09-19
- Facts verified
- 2026-10-15