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FastLib project artwork

CurseForge · Minecraft mod

FastLib

A fast library for mod developers

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which FastLib release should I use?

Updated 4 months ago
Latest stable file fastlib-1.0.jar
Game version 1.20.1
Loader Forge

fastlib-1.0.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.

Where it goes

Is FastLib required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

What else does fastlib-1.0.jar need?

fastlib-1.0.jar. Change the file and its required mods may change too.

All 1 required mods have matching files

Install Epic Fight first. We found matching files for this game-version and loader setup.

Epic Fight Needed by fastlib-1.0.jar
required
Matching file found Matched file: 20.14.17-mc1.20.1-forge

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add FastLib without breaking your instance.

Built for fastlib-1.0.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use fastlib-1.0.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install Epic Fight first. We found matching files for this game-version and loader setup.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside fastlib-1.0.jar. It opens that exact file at the source.

About this project

What does FastLib add?

FastLib

FastLib is a lightweight shared library for Minecraft Forge mods, built to provide reusable systems, optimized utilities, and a consistent development foundation across my projects — while remaining fully open source and available for anyone to use.

At its core, FastLib is designed to reduce duplicated code and make advanced mod development easier without sacrificing performance or flexibility.

Features

🎥 Built-in Camera System
Includes a powerful camera framework with support for:

  • Camera interpolation and smooth transitions
  • Lock-in / target tracking behavior
  • Programmable movement and positioning
  • Extensible architecture for custom camera behaviors

⚡ Performance-Oriented Utilities
A collection of optimized algorithms and helper utilities focused on keeping systems efficient and scalable.

🧠 Math & Development Toolkit
Includes reusable mathematical utilities and abstractions commonly needed during mod development.

🔔 Event Infrastructure
Flexible event systems designed to simplify communication between independent systems and reduce coupling.

🧱 Custom Data Structures
Purpose-built data structures and utilities intended to improve both usability and runtime efficiency.

🔓 Open Source & Developer Friendly
FastLib is fully open source and built to be extended. Whether you want to depend on existing systems or build your own modules on top of them, the library is designed to stay modular and accessible.

Goal

FastLib exists to act as a common foundation for modern Forge mod development — providing reliable building blocks and allowing developers to focus on creating features instead of rewriting infrastructure.

Project description from CurseForge.

Pick your setup

FastLib by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

FastLib versions and loaders

1 of 1 releases match

Looking for an older file? The official CurseForge project page is in Resources.