2FrshItemStacker

2FrshItemStacker is a lightweight item stacking mod for Minecraft that
prevents item entity lag by merging ground items into a single entity with a virtual stack count. Instead of having 500 separate item entities on the ground,
you get one — with a hologram showing exactly what it is and how many there are.

Available for Forge, Fabric, and Paper/Spigot.

Features:

• Ground items automatically merge within a configurable radius

• Holograms display item name and count above each stack

• Stacks split correctly when picked up by players or hoppers

• Fully configurable: max stack size, merge radius, per-item overrides

• Blacklist support for items that should not be stacked

• No client mod required