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FTB Library (Fabric) Mod for Minecraft 1.20.1, 1.21.1

Common code for all GUI stuff in FTB Mods. Component/layer based GUI creation. Used by mods such as FTB Chunks, FTB Quests, etc. (Fabric version)

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78 downloads
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181 views
Updated
Updated 02.11.2026

About the FTB Library (Fabric) mod

If you are looking for Forge version, it's here! https://curseforge.com/minecraft/mc-mods/ftb-library-forge

FTB Library serves as a foundational component for FTB Mods. It's designed to simplify and enhance the modding experience for our developers, streamlining the development process for mods within the Feed the Beast ecosystem. While primarily intended for use by FTB Mods such as FTB Chunks and FTB Quests, it is not explicitly prohibited for integration into non-FTB mods. However, please note that using it in such contexts may pose challenges, and the responsibility for resolving any resulting issues falls upon the mod developer.

Read more about FTB Library on our docs https://go.ftb.team/docs-library

Supports and requires

Pairs with

Key Features

  • Streamlined GUI Development: FTB Library offers a structured framework for GUI creation, allowing us to enhance the user experience within the FTB Mods Suite.
  • Sidebar System: FTB Library introduces a convenient sidebar system located at the top left of your inventory screen, providing quick access to essential features.
  • Config Library: Easily manage configurations and settings for your mods with FTB Library's built-in config library, making it simple to customize your gaming experience.
  • SNBT System: FTB Library includes an SNBT (String Named Binary Tag) system, which simplifies data storage and manipulation within your mod, ensuring smooth integration and compatibility.
  • SNBT-Based Config System: Utilize the SNBT-based config system to streamline the configuration of your mod, enabling quick adjustments to its behavior and appearance.
  • NBT Editor: Access a powerful NBT editor through the "/ftblibrary nbtedit" command. This tool allows you to modify the NBT data of block entities, entities, or players directly from a user-friendly GUI.
  • Utility Commands: FTB Library provides handy utility commands, such as "/ftblibrary night" and "/ftblibrary day" to control the in-game time and "/ftblibrary rain" to start or stop rain, simplifying your gameplay experience.

Example GUI's

Extensible Sidebar Buttons

FTB Library introduces the capability for other mods to create sidebar buttons via JSON files, enhancing the overall functionality and versatility of FTB Mods.

Note: While FTB Library is not designed for use in non-FTB mods, it is not explicitly restricted. Developers choosing to integrate it into such projects should be prepared for potential challenges.

Please proceed with caution and take full responsibility for any compatibility or integration issues that may arise. You can report bugs or feature requests on our GitHub issues page.

Support

  • For Modpack issues, please go here: https://go.ftb.team/support-modpack
  • For Mod issues, please go here: https://go.ftb.team/support-mod-issues
  • Just got a question? Check out our Discord: https://go.ftb.team/discord

How to install FTB Library (Fabric)

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.20.1–26.1.2 on Fabric automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Fabric

    The loader must match the game version of the mod file, for example Minecraft 26.1.2. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file ftb-library-fabric-26.1.2.6.jar (1.6 MB) for your game version.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: FTB Library (Fabric) should be in the list.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.21.1Fabric[FABRIC][1.21.1] FTB Library 2101.1.371.4 MB 25
26.1FabricFTB Library Fabric 26.1.2.61.6 MB 9
1.20.1Fabricftb-library-fabric-2001.1.3.jar589 KB 44

FAQ

Which Minecraft versions does FTB Library (Fabric) work on?

There are files for 26.1.2, 26.1.1, 26.1, 1.21.1, 1.20.1. The newest is 26.1.2.

Is FTB Library (Fabric) for Forge or Fabric?

Only for Fabric: 1.20.1–26.1.2. There are no files for Forge or NeoForge: a mod for another loader will not start.

Does FTB Library (Fabric) need other mods?

The author lists no required dependencies: the Fabric loader is enough.

Where can I download FTB Library (Fabric) safely?

On this page: the file ftb-library-fabric-26.1.2.6.jar (1.6 MB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: f3ccd150de839a7c73d4ebd60e58a4a8c6ef9d17.

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