Stack Size Tweaks
A mod changing the default stack size of items for a better survival experience.
Screenshots
About this Mod
Stack Size Tweaks
Stack Size Tweaks increases the default stack size of items for a better survival experience.
It let's you change stack sizes up to 1 billion using the config.
Default Stack Sizes
Categories are ingredients, blocks, food items, items that normally stack to 16, stews, potions, filled buckets, enchanted books and discs
Font
Stack Size Tweaks includes a custom font that only renders inside the inventory (enabled by default).
It makes higher values inside the inventory much more readable alongside the formatting.
Config
This mod has a config where you can adjust the stack sizes for different item categories and specific items.
Editing max stack sizes requires a restart to take effect.
Access the config by using Mod Menu or NeoForge mods sreen or editing the stacksizetweaks.json5 file in the config folder.
Available Versions
How to Install Stack Size Tweaks 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 (26.2).
Install Mod
Open the mod browser in the dashboard and search for "Stack Size Tweaks". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.2, 26.1.2, 26.1.1 (+11 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Stack Size Tweaks 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 (26.2). You can switch loaders with one click in the panel.
Is Stack Size Tweaks compatible with fabric and neoforge?
Stack Size Tweaks officially supports fabric, neoforge for Minecraft 26.2, 26.1.2, 26.1.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Stack Size Tweaks – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Stack Size Tweaks 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.
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Rent Modded Server
Install Stack Size Tweaks with just one click on your server.