Mixed Stacks

Combine similar items to save inventory space.

114 Downloads

fabricgame-mechanicsmagicutility

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Screenshots

About this Mod

Mixed Stacks

We've all been here before. You have 2 of basically the same item (e.g. charcoal and coal), but they take up 2 different inventory slots? Introducing... Mixed Stacks!

A player's inventory, containing a Mixed Stack with Cooked Beef and Cooked Porkchop.

How They Work

Grab an item from your inventory.
Right-click on another item.
If it allows them to combine, they'll combine into one inventory slot!

Advanced Info

The default config looks like this:

{
  "tagKeywords": [
    "logs",
    "wool",
    "planks",
    "stone_bricks",
    "concrete",
    "glass",
    "carpets",
    "terracotta",
    "beds",
    "banners",
    "candles",
    "shulker_boxes",
    "stairs",
    "slabs",
    "walls",
    "fences",
    "fence_gates",
    "doors",
    "trapdoors",
    "buttons",
    "pressure_plates",
    "signs",
    "boats",
    "flowers",
    "saplings",
    "leaves",
    "crops",
    "seeds",
    "vegetables",
    "fruits",
    "ores",
    "raw_materials",
    "ingots",
    "dusts",
    "plates",
    "gears"
  ],
  "compatibleItemPairs": [
    [
      "minecraft:beef",
      "minecraft:porkchop"
    ],
    [
      "minecraft:cooked_beef",
      "minecraft:cooked_porkchop"
    ],
    [
      "minecraft:chicken",
      "minecraft:rabbit"
    ],
    [
      "minecraft:cooked_chicken",
      "minecraft:cooked_rabbit"
    ],
    [
      "minecraft:sand",
      "minecraft:red_sand"
    ],
    [
      "minecraft:sandstone",
      "minecraft:red_sandstone"
    ],
    [
      "minecraft:dirt",
      "minecraft:coarse_dirt"
    ],
    [
      "minecraft:brown_mushroom",
      "minecraft:red_mushroom"
    ],
    [
      "minecraft:crimson_fungus",
      "minecraft:warped_fungus"
    ],
    [
      "ae2:certus_quartz_crystal",
      "ae2:charged_certus_quartz_crystal"
    ]
  ]
}

You can add specific item pairs via compatibleItemPairs, or specify tags that can combine using tagKeywords.

If you want items from your favorite mod added, you can do so here.

Also on CurseForge, if that's your thing.

Available Versions

Mixed Stacks 1.0.0-beta.1+1.21beta

MC 1.21, 1.21.1fabric

December 31, 2025

How to Install Mixed Stacks on Your Server

Order Server

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

Set fabric Loader

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

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1, 1.21

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Mixed Stacks server crashes on startup – what to do?

Most common cause: wrong fabric 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 Mixed Stacks compatible with fabric?

Mixed Stacks officially supports fabric for Minecraft 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Mixed Stacks – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mixed Stacks 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.