How do I install MobLiB?

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. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does MobLiB work with?

The listing gives Minecraft 1.21.1, 1.21, 1.21.10. This is the version stated by the author or source site, not something we verified ourselves.

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MobLiB

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by GaraKrral · on CurseForge

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric2 builds
Mod loader Quilt2 builds

Minecraft version

Minecraft 1.21.10Newest
Minecraft 1.21–1.21.1

Minecraft 1.21.10Newest
Minecraft 1.21–1.21.1

⬇ Download for 1.21.10 · Fabric ⬇ Download for 1.21–1.21.1 · Fabric ⬇ Download for 1.21.10 · Quilt ⬇ Download for 1.21–1.21.1 · Quilt

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

A KaplanBedwars Original Team: MobLiB

Compatible with Modpacks

MobPvP

MobLiB is a core library mod required by several other mods to function properly.
It does not add any gameplay features on its own, but provides the essential framework that other mods rely on.

Features

Required dependency for the latest versions of MobPvP.
Provides important tools and utilities for mod developers, including:
- Extra build code support for blocks and items
- Mod paths and version management
- Beta testing and update control
- Automatic version generator
And many more internal features that make mod development and compatibility easier.

How It Affects Players

For regular players, MobLiB does not change gameplay directly. However, if you want to use MobPvP or any other mods that depend on this library, installing MobLiB is required.

For modpack creators, MobLiB ensures stability, better compatibility, and easier integration of dependent mods.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.21, 1.21.10
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 CurseForge — 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 MobLiB-1.5-build.2.jar — drop this file into the mods folder
Download size: 35 KB
Download link checked 2 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21