
HotbarReplace
Refills placed blocks in your hotbar when you run out with the same type of block from your inventory
About this Mod
HotbarReplace is a simple Minecraft mod for the Fabric modding framework which refills your placed blocks in your hotbar with blocks from your inventory of the same type.
Available Versions
How to Install HotbarReplace 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 "HotbarReplace". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.5, 1.21.4, 1.21 (+7 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
HotbarReplace 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 HotbarReplace compatible with fabric?
HotbarReplace officially supports fabric for Minecraft 1.21.5, 1.21.4, 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with HotbarReplace – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if HotbarReplace 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.
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Rent Modded Server
Install HotbarReplace with just one click on your server.