Cat Client

A Fabric mod for Minecraft 1.21.11 featuring HUD modules (FPS, TPS, armor, zoom), a customizable main menu, a cape system, and QoL features like Fullbright and Toggle Sprint.

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fabricgame-mechanicsutility

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About this Mod

Cat Client is a client-side Fabric mod for Minecraft 1.21.11 that enhances your gameplay experience with a variety of useful features.
🖥️ HUD Modules
Keep track of important information at a glance with customizable HUD modules, including FPS, TPS, armor display, and a smooth zoom function.
🎨 Customizable Main Menu
Make Minecraft feel like your own with a fully customizable main menu that gives the game a fresh and personal look.
🦺 Cape System
Stand out from the crowd with Cat Client's built-in cape system, allowing you to wear and display your own cape in-game.
⚡ Quality-of-Life Features
Small but impactful improvements to your daily gameplay:

Fullbright – See clearly in dark areas without torches
Toggle Sprint – Sprint without holding the key

Available Versions

Cat Client 0.1.0release

MC 1.21.11fabric

June 13, 2026

How to Install Cat Client 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 "Cat Client". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Cat Client 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 Cat Client compatible with fabric?

Cat Client officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Cat Client – how to optimize performance?

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