Auto Refill Slot

When you break/place your last item in a hotbar slot (e.g., last dirt block or torch), it auto-refills from inventory if available.

3.8K Downloads

fabricgame-mechanicsutility

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About this Mod

🧱 About Auto Refill Slot

Never get interrupted mid-build or mid-fight again. Auto Refill Slot ensures seamless gameplay by automatically refilling your hotbar slot when you use up the last item — whether it's a dirt block, torch, snowballs, or any stackable item.

When a stack runs out, the mod instantly pulls a matching item from your inventory, keeping the flow going without needing to open your inventory.

⚙️ Smart Refill Logic

Works with blocks, tools, and more
Only activates if the same item is available

🚀 Lightweight and Client-Side Only

Designed for convenience without any server-side requirements. Ideal for builders, redstoners, and adventurers alike.

📦 Perfect for survival gameplay, building sessions, or any time you want less hassle and more action.

Available Versions

Auto Refill Slot 1.0-SNAPSHOTrelease

MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5fabric

May 7, 2025

How to Install Auto Refill Slot on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.5).

Install Mod

Open the mod browser in the dashboard and search for "Auto Refill Slot". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.5, 1.21.4, 1.21.3 (+3 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Auto Refill Slot server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.5). You can switch loaders with one click in the panel.

Is Auto Refill Slot compatible with fabric?

Auto Refill Slot officially supports fabric for Minecraft 1.21.5, 1.21.4, 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Auto Refill Slot – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Auto Refill Slot consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.