How do I install FLIB?

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 FLIB work with?

The listing gives Minecraft 1.21.1, 1.20.1, 1.20, among others. This is the version stated by the author or source site, not something we verified ourselves.

Home›Java›Mods›FLIB

ModsJava

FLIB

by Lothrazar · 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 NeoForge2 builds
Mod loader Forge5 builds

Minecraft version

Minecraft 1.21.1Newest
Minecraft 1.20.1

Minecraft 1.20.1Newest
Minecraft 1.20
Minecraft 1.19.4
Minecraft 1.19.2
Minecraft 1.18.2

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · NeoForge ⬇ Download for 1.20.1 · Forge ⬇ Download for 1.20 · Forge ⬇ Download for 1.19.4 · Forge ⬇ Download for 1.19.2 · Forge ⬇ Download for 1.18.2 · Forge

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 →

FutureLibrary aka FLIB

Just shared code for many mods that i made. Enables me to speed up the process of creating new mods, and make porting between versions easier.

partial list of java features - See GitHub for more

- coremod data

- BlockSettings (tooltip, rotateColor, litWhenPowered, facingAttachment)

- inventory wrappers

- newmod template with buildscripts

- Worldgen feature builders (simple, patch, ore)

- dimension utilities

- EnergyIngredient for recipes

- FluidTagIngredient for recipes

- RandomizedOutputIngredient for recipes

- Brewing recipe

- many misc utilities

- /flib commands : can disable them in config flib.toml

-- /flib tpx: teleport across dimensions

-- /flib health add/set/random/factor

-- /flib hunger add/set/random/factor

-- /flib hearts add/set/random/factor

-- /flib gamemode @p 1

-- /flib scoreboard random @p 4 9 OBJECTIVE

-- /flib attribute minecraft:reach_distance random @p 3 8

Upcoming features

- item projectile weapon capabilities

- item capabilities

- mixins

- GUI Screen libraries

Other Stuff

"flib - /flib/ (WPI) A meta-number, said to be an integer between 3 and 4.
See grix, N. "

- Dictionary of Computing https://www.webster-dictionary.org/definition/flib

1.18.2 small mods using this library

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1, 1.20
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.

Verified by MCModsHub

Ships as flib-1.20-0.0.5.jar — drop this file into the mods folder
Download size: 159 KB
Download link checked 9 Sept 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 Java mods for 1.20 Java mods for 1.19 Java mods for 1.18