AirClient

An Open Source Minecraft Client

273 Downloads

fabricutility

Rent Server with this Mod

About this Mod

An Open-Source Minecraft Client inspired by Badlion Client and Lunar Client

About

AirClient is a Minecraft Client Mod inspired by Badlion Client and Lunar Client meant to be completely Open-Source. As such, it does not have a lot of features and is still early in development.

Current Feature-Set

Cosmetics
- Capes
  - Animated Capes
  - Capes from HTTP Server
  - Selection Screen
- Deadmau5 Ears
- Player Name Prefixes
  - Color Coding (Reference)
- Sharing Cosmetics to other Players using a Websocket Server
Overlays
- Keystrokes
- FPS
- Position
- Draggable HUD
Setting Window Title and Title Screen Version Text

Available Versions

AirClient 0.7.1release

MC 1.21.9, 1.21.10, 1.21.11fabric

December 14, 2025

AirClient 0.7release

MC 1.21.9, 1.21.10fabric

December 13, 2025

AirClient 0.6release

MC 1.21.7fabric

July 16, 2025

How to Install AirClient 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 "AirClient". 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 (+1 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

AirClient 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 AirClient compatible with fabric?

AirClient 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 AirClient – how to optimize performance?

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