ModsJava
Kalcium Client
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
Kalcium Client
Kalcium client is a Fabric-based utility client built and have a mod menu. It also have presents like PVP Focus, Streamers and Performance.
Left + Shift Key to open Mod HUD
Features why should you have to use it
- This mod have a mod menu.
- Compatible with many mods.
- If you dont like the Client's UI you can change back to Minecraft's original UI without removing your fav mods on our client mod menu.
- If you don't know which mod should I turn ON or turn OFF there is an inbuilt Mod Presents feature here.
Quick facts
- 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.
File checked by MCModsHub
- Ships as kalcium-client-1.21.11+2.5.jar — drop this file into the mods folder
- Download size: 13.1 MB
- Download link checked 19 Oct 2026 — working
These come from our own check of the pack file, not from the source page.