Whats This Item?

This Mod adds back the What's This button from legacy console versions of the game

154 Downloads

fabricgame-mechanicsutility

Rent Server with this Mod

Screenshots

About this Mod

This Mod adds back the What's This button from legacy console versions of the game

🚨DISCLAMER!🚨
Im not great at modding, so this was made with a lot of help with Claud AI

To use, press the programmable Button while hovering over an item to get a description

If you find any bugs please report them here

Available Versions

Whats This Item? 1.0.0release

MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric

March 11, 2026

How to Install Whats This Item? 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 (1.21.11).

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+9 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Whats This Item? 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 (1.21.11). You can switch loaders with one click in the panel.

Is Whats This Item? compatible with fabric?

Whats This Item? officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Whats This Item? – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Whats This Item? 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.