Minecraft Java 1.21 Mods
Browse 9 free mods for Minecraft Java 1.21 — popular picks include Iron Shulkers, Shulkers In Shulkers *updated version*, Chest Looter.
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Iron Shulkers
The Iron Shulkers Mod for NeoForge and Fabric
Shulkers In Shulkers *updated version*
The updated version of Shulkers In Shulkers for the later versions of minecraft. Supports 1.20.1-1.21.6
Chest Looter
A Mod that allows you to quickly take whatever items are in a chest/shulker/storage. It provides a simple UI when you open storage, which lets you change the keybind, and how fast the items get taken.
HM Shulker Refill
Automatically refills blocks in your hotbar from your inventory or shulker boxes.
MassRenameGUI
Plugin that adds a GUI to rename multiple Stacks of Items or unstackable Items at once, requiring only an already renamed item as a template. Useful for mass-renaming Shulkers for example.

Xiaoklunar Shulker
Inventory shulker opening + overflow pickup vacuum that stores into carried shulkers.
Shulker Packer Mod
This mod adds the ability to automate packing items into shulker boxes.
Cameraman
Allows another player or instance of minecraft to record replay/flashback files for you, without them needing to follow you around manually

Rype's Auto GSet / GTools Maker
Automates enchanting gear and tools using anvils and items from shulkers with configurable speeds, XP collection, and resume support. Enchants Everything.