Description
Stacker
Minecraft mod to change the stack size of all items. For Fabric 1.17.x, 1.18.1, 1.18.2, and 1.19!

This mod has a config that defaults to 64. Change it to be whatever you like (below int_max), but I do not recommend anything too far over 1 Billion (No support will be given for stacks larger than 1,073,741,823).
Requires Stacc API and Cloth Config API. Stacc API is an embedded library, so don't worry about downloading it. I recommend installing with Mod Menu (for in-game access to the configs), but it is not needed to run.
Note: The maximum you can put into a crafting table at once is capped at 1,000 items per slot. This is done to prevent lag. This is increased to 100,000 if installed alongside FastBench for Fabric.
New in 2.0.0! Config can now be edited in-game (with ModMenu installed):

New config vales are also added in this update, allowing for font size customization.
New in 3.0.0! Configure individual item or tag stack sizes, and a restart is no longer required anymore!

Changes are applied on when saving config, but you can also use the /reload command.
If you want this for 1.15.2 or 1.16.5 (Fabric): https://www.curseforge.com/minecraft/mc-mods/stacc
If you want this for 1.12.2 or 1.13 (Forge, Rift): https://www.curseforge.com/minecraft/mc-mods/stackup
If you want this for 1.18.2 or 1.19 (Forge): https://www.curseforge.com/minecraft/mc-mods/bigger-stacks
I am not associated with these projects, please send their issues to the respective locations.
Videos:
Here is a video by Alfoko showcasing some crazy things that you can do with a stacksize set to 1 Billion.
Github: https://github.com/Andrew6rant/Stacker
Modrinth: https://modrinth.com/mod/stacker
Only download my mods from CurseForge, Github, or Modrinth. Any other site can host a file that is not vetted by me.
Be sure to check out my other mods, Teeny Coal, Workings, End Stone, Precise Armor, and Inventory Tabs (updated)!
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What means Verified?
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Compatibility: The mod should be compatible with the latest version of Minecraft and be clearly labeled with its supported versions.
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Functionality: The mod should work as advertised and not cause any game-breaking bugs or crashes.
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Security: The mod should not contain any malicious code or attempts to steal personal information.
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Performance: The mod should not cause a significant decrease in the game's performance, such as by causing lag or reducing frame rates.
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Originality: The mod should be original and not a copy of someone else's work.
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Up-to-date: The mod should be regularly updated to fix bugs, improve performance, and maintain compatibility with the latest version of Minecraft.
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Support: The mod should have an active developer who provides support and troubleshooting assistance to users.
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License: The mod should be released under a clear and open source license that allows others to use, modify, and redistribute the code.
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Documentation: The mod should come with clear and detailed documentation on how to install and use it.
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How to Install
Download Forge & Java
Download Forge from the offical Site or here. If you dont have Java installed then install it now from here. After Downloading Forge you can run the file with Java.
Prepare
Lounch Minecraft and select your Forge istallation as Version this will create a Folder called Mods.
Add Mods
Type Win+R and type %appdata% and open the .minecraft Folder. There will you find your Folder called Mods. Place all Mods you want to play in this Folder
Enjoy
You are now Ready. Re-start your Game and start Playing.