ModsFinder

McJtyLib

by McJty

McJtyLib is a Library mod by McJty that most of the author's own mods depend on, and it provides shared user interface code and helpers.

ForgeNeoForgeClient and serverMIT LicenseOpen source1.7.10 – 1.21.1

What it does

Many McJty and romelo333 mods, including the RFTools family, rely on McJtyLib for common code. Installing one of those mods without it is not enough, because the shared interface and helper classes come from this library. The mod requires no configuration of its own and adds no blocks or items to the world.

The library covers user interface building blocks and a set of tools and helpers for mod-related tasks, so the mods above do not each have to carry their own copies. It is published for Forge and NeoForge, with builds for 1.7.10 – 1.21.1, and it is open source under the MIT License. The optional dependency The One Probe adds in-game block information when it is present.

Files for 1.21.1 are available on NeoForge and Forge, and the 1.20.1 Forge build is the latest Forge release. The mod runs on client and server, so both sides need the same version of the library.

Key features

  1. Shared user interface code

    Provides interface components that dependent mods reuse, so their screens look and behave alike.

  2. Helper classes

    Contains utility code for block entities, item handling and other mod-related tasks used across the McJty family.

  3. Dependency for RFTools

    The RFTools Base, Utility, Builder, Control, Storage, Power and Dimensions mods all need this library to run.

  4. Shared code for the author's mods

    Several other mods by the same author draw on this library, so installing them alongside it is required.

Compatibility

Latest build for each game version and loader.

1.21.x1 of 1 version with builds
1.21.1Not available1.21-9.0.21
1.20.x1 of 1 version with builds
1.20.11.20-8.0.8Not available
1.19.x5 of 5 versions with builds
1.19.41.19.4-7.2.7Not available
1.19.31.19.3-7.2.5Not available
1.19.21.19-7.2.8Not available
1.19.11.19-7.0.1Not available
1.191.19-7.0.1Not available
1.18.x2 of 2 versions with builds
1.18.21.18-6.0.20Not available
1.18.11.18-6.0.10Not available
1.16.x4 of 4 versions with builds
1.16.51.16-5.1.8Not available
1.16.41.16-5.0.16Not available
1.16.31.16-5.0.16Not available
1.16.21.16-5.0.8Not available
1.15.x1 of 1 version with builds
1.14.x3 of 3 versions with builds
1.12.x3 of 3 versions with builds
1.11.x2 of 2 versions with builds
1.10.x2 of 2 versions with builds
1.9.x2 of 2 versions with builds
1.8.x2 of 2 versions with builds
1.7.x1 of 1 version with builds
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Optional 1

The One ProbeTOP, a WAILA alternative that shows information about what you're looking at
Optional

Required by 31 mods

RFTools Base1.14.3 – 1.21.1RFTools Utility1.14.4 – 1.21.1XNet1.10.2 – 1.21.1RFTools Builder1.14.4 – 1.21.1RFTools (Legacy)1.7.10 – 1.12.2RFTools Power1.12.2 – 1.21.1

Questions

Does the RFTools family need McJtyLib?

Yes. The RFTools mods require McJtyLib, so the library has to be installed beside any of them.

Does McJtyLib need to be installed on the server?

Yes. Every player and the server need a copy of the mod.

Which loader should be used with McJtyLib?

The mod is published for Forge and NeoForge. The latest NeoForge file is 1.21-9.0.21 for 1.21.1, in the beta channel, and the latest Forge file is 1.20-8.0.8 for 1.20.1.

Does The One Probe need to be installed?

No. The One Probe is an optional dependency, so McJtyLib runs without it, and adding it enables in-game block information.

In the catalog

McJtyLib is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 32,366 mods support Minecraft 1.21.1.

Library mods3,514Forge modsMods for 1.21.132,366

More from McJty

All projects
The Lost Cities1.10.2 – 26.2In Control!1.10.2 – 26.2RFTools Base1.14.3 – 1.21.1RFTools Utility1.14.4 – 1.21.1The One Probe1.9 – 26.2XNet1.10.2 – 1.21.1

Similar mods

Cloth Config API1.14 – 26.3YetAnotherConfigLib (YACL)1.19 – 26.3Architectury API1.16.5 – 26.3Just Enough Items (JEI)1.8 – 26.3Geckolib1.12.2 – 26.3Forge Config API Port1.16 – 26.3

What the author says

This is a library mod used by most McJty and romelo333 mods. It provides functionality like a user interface and many tools and helpers for various mod related things. Most of these mods are available on 1.12.2 and 1.16.5, 1.18.2 and 1.19.
McJty, on the Modrinth page

Official listing

Owner
McJty
Published
2023-01-26
Updated on Modrinth
2026-06-16
Facts verified
2026-10-15

Tags

Library
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