Smart Refill

Automatically refills empty hotbar slots with matching items from your inventory. Works in both Survival and Creative mode!

by adamjaroui23

Fabric

Loaders: Fabric
Downloads on Modrinth: 570
Followers on Modrinth: 0
versions: 2
Updated: September 29, 2026Sep 29
Published: in 2026

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At a glance

Runs on Fabric

For Minecraft 1.21.4, 1.21.11

Client only — no need to install it on the server

Latest version — 1.0.1 from September 29, 2026

Requires Cloth Config API, Mod Menu and Fabric API

License MIT — free

Where it's needed

In gamerequiredOn servernot needed

Install in the game only; not needed on the server

Game versions1.21.4, 1.21.11

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:

Requirements:

Fabric Loader
Fabric API
Minecraft 1.21.4

Optional:

Mod Menu (for config screen)
Cloth config API

FAQ

How to install Smart Refill?

Install Fabric for your Minecraft version, download Smart Refill for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Smart Refill support?

Smart Refill has builds for Minecraft 1.21.4, 1.21.11.

Is Smart Refill needed on the server?

Client only — no need to install it on the server

License and source

MIT Licensefree to use and share with credit to the author

Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders