Auto Replace

Auto-replacing blocks in your main-hand or off-hand while breaking the block!

363 Downloads

neoforgegame-mechanicsoptimizationutility

Rent Server with this Mod

Screenshots

About this Mod

With this mod, if you have blocks at your main-hand or off-hand and break the blocks, it will replace the blocks automaticly.

This action is possible with few conditions:

-If you have blocks at your main-hand and break any block with your main-hand, it will automaticly replace the block at your main-hand.

-If you have blocks at your off-hand and have pickaxe, axe, shovel, hoe, at your main-hand or empty main-hand,
it will automaticly replace the block at your off-hand(If you have any other item at your main-hand, this action will not work!).

Also you can disable this feature at the Game Rules menu(Disable Auto Replace), or /gamerule command(disableAutoReplace, default is false).

Available Versions

Auto Replace 1.0.0release

MC 1.21.1neoforge

July 5, 2025

How to Install Auto Replace on Your Server

Order Server

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

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Auto Replace server crashes on startup – what to do?

Most common cause: wrong neoforge 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 (1.21.1). You can switch loaders with one click in the panel.

Is Auto Replace compatible with neoforge?

Auto Replace officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Auto Replace – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Auto Replace 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.