Stack Refill

When the item in a hand or slot is used up, the mod searches the inventory for a matching stack and moves it into the same slot, so tools, armor and off-hand items stay ready without manual inventory work. Players choose whether the search runs inventory first or hotbar first, and a mode can keep chosen hotbar slots topped up whenever matching items are present. Builders, miners, fighters and farmers can keep working through long sessions without stopping to reorganize items.

The mod can warn the player when only one matching stack remains, show a small counter on a hotbar slot and play an optional sound when a refill happens. Specific items can be placed on a blacklist so they are never refilled automatically. Settings are reached through an in-game configuration screen, and the mod only moves items that already exist in the inventory.

Stack Refill is published for Forge and NeoForge, both for 1.21.1 with a 1.0.0 file dated 2026-06-03. It runs on the client only, so players join servers without installing anything, and it is released under All rights reserved, which means it is not open source.