Bigger Stacks(Unofficial)

Raises the max stack size for almost every item and lets you fine-tune global and per-item caps (including totems, potions, enchanted books, tags, and custom items) via simple config files.

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About this Mod

Bigger Stacks (Unofficial)

NeoForge 1.21.1 fork that raises the stack size for almost every item. Global caps live in biggerstacks-rules.xml, and one-off overrides (totems, potions, enchanted books, etc.) are described in biggerstacks-template-overrides.json.

How to use

Place the jar in both client and server mods/ folders.
Run /biggerstacks quicksetup in-game to tweak the three preset categories, or edit run/config/biggerstacks-rules.xml manually if you prefer plain XML.
To stack normally unstackable items (Totem of Undying, custom items, tags), add entries inside biggerstacks-template-overrides.json.

Available Versions

Bigger Stacks(Unofficial) - 1.0.2release

MC 1.21.1neoforge

November 29, 2025

How to Install Bigger Stacks(Unofficial) on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Bigger Stacks(Unofficial)". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Bigger Stacks(Unofficial) server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Bigger Stacks(Unofficial) compatible with neoforge?

Bigger Stacks(Unofficial) officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Bigger Stacks(Unofficial) – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Bigger Stacks(Unofficial) consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.