MonoLib
Developers who write several mods often copy the same helpers, and MonoLib is a library that gathers that shared code for Fabric, Forge and NeoForge projects.
What it does
MonoLib provides event callbacks, commands, registration binding and other utility code that its authors reuse across their projects. It is a library rather than a gameplay mod, so it adds no content of its own, and it has to be present on the client and the server alongside the mods that depend on it.
The library is the base for 21 other catalog mods, including Dis-Enchanting Table, Animal Armor Trims - Horse & Wolf, More Beautiful Torches, Golden Foods! and EnderPack. Builds exist for Fabric, Forge and NeoForge, with the latest files for 26.1.2 and 1.20.1, both published on 2026-10-03. The authors say the library is kept current for their own projects.
The code is released under The Unlicense, so the mod is open source and its source code and issue tracker are public. The mod was first published on 2024-03-13 and last updated on 2026-10-03, and it is one of 704 Library mods with Fabric files for 26.1.2.
Key features
Event callbacks
Shared callback hooks let other mods react to game events through one common interface.
Command utilities
Helpers for registering and organizing commands are included, so dependent mods do not each write the same setup.
Registration binding
Code for binding registry entries is gathered in one place, reducing repetition across projects.
Shared utility code
General-purpose helpers from the author's projects are packaged together for reuse.
Compatibility
Latest build for each game version and loader.
26.x3 of 3 versions with builds
1.21.x8 of 8 versions with builds
1.20.x6 of 6 versions with builds
1.19.x5 of 5 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 21 mods
Use cases
Mod development
Developers who maintain several mods can depend on MonoLib instead of copying the same utility classes into each project.
Who it’s for: Mod developers who want shared event, command and registration helpers, and server owners who need the library present for the mods that require it.
How it compares
Collective is a shared library for Serilum's mods, with Fabric, Forge, NeoForge and Quilt files for 1.16.5 – 26.3, licensed under All rights reserved and not open source. Bookshelf is open source under the GNU Lesser General Public License v2.1 only, covering Fabric, Forge, NeoForge and Quilt across 1.7.10 – 26.3. StrawberryLib is a Client and server library for Fabric, NeoForge and Quilt only, with files for 1.21.5 – 26.3 and no Forge build.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| MonoLib | Fabric, Forge and NeoForge | 1.19 – 26.1.2 | Client and server | 2026-10-03 |
| Collective | Fabric, Forge, NeoForge and Quilt | 1.16.5 – 26.3 | Client or server, optional | 2026-10-14 |
| Bookshelf | Fabric, Forge, NeoForge and Quilt | 1.7.10 – 26.3 | Client and server | 2026-09-29 |
| StrawberryLib | Fabric, NeoForge and Quilt | 1.21.5 – 26.3 | Client and server | 2026-10-13 |
Questions
Does MonoLib need to be installed on the server?
Which loader should be used for MonoLib?
Is MonoLib open source?
In the catalog
MonoLib 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 jason13official
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What the author says
Use the most recent version of your preferred mod loader! MonoLib is the cornerstone library for mods published by Lupin and authored by Jason13, designed to decrease code repetition across many projects. This library is open for use by anyone, but it's designed around our needs specifically. This mod has many…
Official listing
- Modrinth page
- modrinth.com/mod/monolib
- Owner
- jason13official
- Published
- 2024-03-13
- Updated on Modrinth
- 2026-10-03
- Facts verified
- 2026-10-15
