ModsFinder

Stack Config

by linked

Stack Config lets server owners set custom maximum stack sizes for individual items, tags and mods through a config file.

FabricForgeNeoForgeClient and serverGNU General Public License v3.0 or laterOpen source1.18.2 – 26.2

What it does

Custom maximum stack sizes can be set for single items, or for a whole tag, so one rule covers many entries at once. Each rule applies per item and per tag, and an entry such as an ender pearl can be pinned to one value while boats or the catch-everything tag receive another. Changes take effect the next time the game asks an item for its maximum stack size, so no restart is needed after editing the file.

The mod is open source under the GNU General Public License v3.0 or later and runs on client and server, so both sides need it. Files are published for Fabric, Forge and NeoForge across 24 release versions, 1.18.2 – 26.2, and Cloth Config API is an optional dependency that adds a settings screen.

Key features

  1. Custom max stack sizes

    Any item can be given its own maximum stack size, written in the config file.

  2. Per-item and per-tag rules

    A rule can target one item or a whole tag, with single entries overriding broader tag rules.

  3. Live config reload

    Edits to the config file apply the next time a stack size is read, without restarting the game.

Compatibility

Latest build for each game version and loader.

26.x1 of 1 version with builds
26.21.1Not availableNot available
1.21.x12 of 12 versions with builds
1.21.111.1Not available1.1
1.21.101.1Not available1.1
1.21.91.1Not available1.1
1.21.81.1Not available1.1
1.21.71.1Not available1.1
1.21.61.1Not available1.1
1.21.51.1Not available1.1
1.21.41.1Not available1.1
1.21.31.1Not available1.1
1.21.21.1Not available1.1
1.21.11.1Not available1.1
1.21Not availableNot available1.1
1.20.x5 of 5 versions with builds
1.19.x5 of 5 versions with builds
1.18.x1 of 1 version with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Optional 1

Cloth Config APIConfiguration Library for Minecraft Mods
Optional

How it compares

Full comparison

Stack Manager is server-side only and covers Fabric and NeoForge under the MIT License, for 1.18.2 – 1.21.11. Mega Stacks is open source under the MIT License and needs the server while clients may skip it, for 1.21.4 – 26.2. Items Stack is open source under the GNU Lesser General Public License v3.0 only and is client and server, for 1.21 – 26.2.

ModLoadersGame versionsEnvironmentUpdated
Stack ConfigFabric, Forge and NeoForge1.18.2 – 26.2Client and server2026-10-12
Stack Manager (Fabric/NeoForge)Fabric and NeoForge1.18.2 – 1.21.11Server-side only2026-01-01
Mega StacksFabric, Forge, NeoForge and Quilt1.21.4 – 26.2Server required, client optional2026-06-17
Items StackFabric1.21 – 26.2Client and server2026-10-01

Questions

Does Stack Config need Cloth Config API?

No. Cloth Config API is an optional dependency that adds an in-game settings screen; the config file works without it.

In the catalog

Stack Config is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 13,894 mods support Minecraft 26.2.

Storage mods4,058Fabric modsMods for 26.213,894

More from linked

All projects
Flap26.2

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Mouse Tweaksb1.7.3 – 26.3Inventory Profiles Next1.14.1 – 26.3Clumps1.10.2 – 26.3Shulker Box Tooltip1.16.5 – 26.3Traveler's Backpack1.12.2 – 26.3Tom's Simple Storage Mod1.15.2 – 26.3

What the author says

Set custom max stack sizes for any item. Edit the config/stack_config.json and set stack sizes however you like, by item ID or by tag. The mod hooks into ItemInstance.getMaxStackSize to override the vanilla limit at the source.
linked, on the Modrinth page

Official listing

Owner
linked
Published
2025-11-04
Updated on Modrinth
2026-10-12
Facts verified
2026-10-15

Tags

StorageUtility
Open on ModrinthCompare