Item Duper (Only Singleplayer)

Client-side Fabric mod for Minecraft 26.2. The "/makeunlimited" client command toggles the item in your main hand. The selected stack's count is preserved when vanilla code shrinks it, while its ordinary use action still runs.

介绍

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ItemDuper (Only Singleplayer)

Client-side Fabric mod for Minecraft 26.2. The /makeunlimited client command toggles the item in your main hand. The selected stack’s count is preserved when vanilla code shrinks it, while its ordinary use action still runs.

Multiplayer safety

The command refuses to activate unless the client is connected to its integrated singleplayer server and that server has not been published to LAN. If LAN is opened while an item is marked, a client tick disables the feature and clears its marker from the player’s inventory on both sides. The item hook also checks the private singleplayer state before preserving a stack, so consumption is allowed as soon as LAN is published. The mod metadata is client-only, so it cannot load on a dedicated server.

This is client-side behavior. It does not grant authority over remote servers or change server-side inventory rules.

Tutorial

You can watch the video for usage.

Build

Install JDK 25 or newer and use the included Gradle wrapper:

.\gradlew.bat build

The distributable JAR is written to build/libs/itemduper-1.0.0.jar.

Project details

Minecraft: 26.2
Java: 25
Fabric Loader: 0.19.3
Fabric Loom: 1.17-SNAPSHOT
Fabric API: 0.156.0+26.2
Package: az.org.shoriufoundation.itemduper
Mod ID: itemduper

Copyright

Project name and organization details are configured for Shoriu Foundation. Add the Foundation’s official website/contact details before publishing if desired.

常见问题

Item Duper (Only Singleplayer) 支持哪些 Minecraft 版本？

Item Duper (Only Singleplayer) 支持 Minecraft Java 版 26.2，可用的加载器：Fabric。下载时注意选择和你游戏版本一致的文件。

Item Duper (Only Singleplayer) 怎么安装？

先用 PCL2 或 HMCL 启动器安装对应版本的 Fabric，再把下载的 .jar 文件放进游戏目录的 mods 文件夹，重新启动游戏即可。开启了版本隔离的，mods 文件夹在 versions/版本名下面。