ModsFinder

Modder Name Lib

by quat

Modder Name Lib is a shared code library from quat that the Season 2 mods use for loader abstraction, registration, configuration and error reporting.

FabricForgeNeoForgeClient or server, optionalGNU Lesser General Public License v3.0 or laterOpen source1.20.1 – 26.1.2

What it does

The library provides basic mod scaffolding that hides differences between the Fabric, Forge and NeoForge loaders, so one codebase can target all three. It also includes a custom registration system that handles content registration and data generation in the same pass, an error-reporting system, and a configuration library that works through Fabric and NeoForge with its own config format. Fabric API is required, and the mod is listed as required by Rebind Narrator, Packages and Crowmap.

Mods that bundle the library carry it inside the jar through jar-in-jar on Fabric and NeoForge. Players and developers can also choose to install a specific version by hand, which the author suggests is the usual approach instead of the bundled copy. Installing it separately is noted as probably needed when another mod is used alone. The library is open source under the GNU Lesser General Public License v3.0 or later and is published for 1.20.1, 1.21.1, 1.21.5, 1.21.11 and 26.1.2. Each loader's latest file targets 26.1.2 for Fabric and NeoForge and 1.20.1 for Forge.

Key features

  1. Loader abstraction

    Shared scaffolding smooths over the differences between the Fabric, Forge and NeoForge APIs for mod code.

  2. Combined registration

    Content registration and data generation run through one custom system, so both are set up together.

  3. Error reporting

    A built-in error-reporting system gives mods a common way to report problems during development and play.

  4. Configuration library

    A configuration library reads and writes settings on Fabric and NeoForge using a custom config format.

Compatibility

Latest build for each game version and loader.

26.1.22026.08.31-fabric-26.1.2Not available2026.08.31-neoforge-26.1.2
1.21.112026.08.31-fabric-1.21.11Not available2026.08.31-neoforge-1.21.11
1.21.52025.12.23-fabric-1.21.5Not available2025.12.23-neoforge-1.21.5
1.21.12026.08.31-fabric-1.21.1Not available2026.08.31-neoforge-1.21.1
1.20.12026.08.31-fabric-1.20.12026.08.31-forge-1.20.12026.07.18-forge-1.20.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Required by 3 mods

How it compares

Full comparison

Atlas Lib is a library for Forge and NeoForge only, covering 1.12.2 – 1.21.1, under the GNU Lesser General Public License v2.1 only, and it is open source. Yet Another Mod Library is a NeoForge-only library for 1.21.1 under the Apache License 2.0, and it is open source. Modder Name Lib covers Fabric, Forge and NeoForge across 1.20.1 – 26.1.2 and is open source under the GNU Lesser General Public License v3.0 or later.

ModLoadersGame versionsEnvironmentUpdated
Modder Name LibFabric, Forge and NeoForge1.20.1 – 26.1.2Client or server, optional2026-08-31
Atlas LibForge and NeoForge1.12.2 – 1.21.1Client and server2026-06-06
Yet Another Mod LibraryNeoForge1.21.1Client and server2026-07-27

Questions

Does Modder Name Lib need Fabric API?

Yes. Fabric API is a required dependency, so it must be installed next to Modder Name Lib on Fabric.

Is it necessary to install Modder Name Lib separately?

The author notes say it is probably needed to install it separately, because mods that bundle it use jar-in-jar and the library does not depend on other content.

Which versions are available for Modder Name Lib?

Files exist for 1.20.1, 1.21.1, 1.21.5, 1.21.11 and 26.1.2, with the latest Fabric and NeoForge files for 26.1.2 and the latest Forge file for 1.20.1.

In the catalog

Modder Name Lib is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 15,189 mods support Minecraft 26.1.2.

More from quat

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What the author says

Modder Name Lib is my personal library of code shared between all Season 2 projects. You probably do not need to install Modder Name Lib separately. Modder Name Lib is included in all mods that use it using the "jar-in-jar" systems in Fabric and NeoForge. If you choose to manually install it, the version you select…
quat, on the Modrinth page

Official listing

Owner
quat
Published
2025-08-11
Updated on Modrinth
2026-08-31
Facts verified
2026-10-15

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