Smart Refill

Smart Refill is a lightweight client-side Fabric mod for Minecraft 1.21.4 that automatically refills empty hotbar slots with matching items from your inventory.

The mod is designed to feel instant and seamless during gameplay, making building, PvP, movement, and general survival gameplay much smoother.

Features:

• Instant hotbar refill
• Works in Survival mode
• Infinite-style refill support in Creative mode
• Preserves item data/NBT/components
• Lightweight and optimized
• Multiplayer compatible
• Toggle keybind support
• In-game config screen with Mod Menu integration
• Clean and minimal design

Supported item types include:

• Blocks
• Food
• Fireworks
• End Crystals
• Potions
• Snowballs
• Pearls
• Any stackable item

Default Toggle Key:

R

Requirements:

• Fabric Loader
• Fabric API
• Minecraft 1.21.4

Optional:

• Mod Menu (for config screen)
• Cloth config API