

ItemsAdderAdvancedTooltip is a simple Clientside Fabric Mod for 1.21.11 that modifies the minecraft:<id> text usually shown in Advanced Tooltips with a custom <namespace>:<id> one, if you're hovering over an item that was created by the Server Plugin ItemsAdder.
How it works
The Mod looks for the following components structure in an item:
components: {
"minecraft:custom_data": {
itemsadder: {
namespace: "namespace",
id: "id"
}
}
}
If such a component structure is found does the mod take the namespace and id value and use them as the Tooltip's <namespace>:<id> content, replacing the minecraft:<id> one usually displayed.
Example: Instead of minecraft:paper would it display example:custom_item.
Modpack inclusion?
This mod can be included in Modpacks, as long as you respect the MIT license and also give credit to me and this original project page.
(Neo)Forge version?
Tried to add support for NeoForge using Architectury, but due to way too many issues did I make this mod a Fabric-only version. This mod may work on NeoForge using the Connector mod but no guarantee is provided here. Maybe in the future will I consider a NeoForge version to be created.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as iaat-1.0.1+1.21.11.jar — drop this file into the mods folder
- Download size: 7 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.