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Modern KeyBinding [Fabric] Mod for Minecraft 1.20.1, 1.21.1

Add key conflict context and key modifier for FabricMC

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Updated
Updated 18.10.2026

About the Modern KeyBinding [Fabric] mod

Forge? Here.

The official port of Modern KeyBinding.

For common players:

Features

  • You can now define a keybinding's activation key with key modifiers. Like "Ctrl + G" or "Alt + S";
  • The keybindings with the same activation key but different key conflict contexts will not conflict now.
  • "Non-conflict keys" (disabled by default): The keybindings with the same key will all be activated if the key is pressed.

Configurations

ModernKeyBinding-Config

Non-conflict keys function. Set to true to activate. [Default: false]

nonConflictKeys=false

For developers:

The mod's WIKI(English | 简体中文).

ATTENTION:

You DEFINITELY CAN add the mod to your modpack;

Check legacyfabric.net for more info about Legacyfabric.

How to install Modern KeyBinding [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 1.20.1–1.21.4 on Fabric or Quilt automatically.

  3. Launch the game

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

Manually

  1. Install Fabric or Quilt

    The loader must match the game version of the mod file, for example Minecraft 1.21.4. 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 ModernKeyBinding-Fabric-1.21.4-1.2.1.jar (52 KB) for your game version and loader.

  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: Modern KeyBinding [Fabric] should be in the list.

Minecraft 1.21.4 runs on Java 21: with a different Java version the game may close right after launch.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.21.4FabricModernKeyBinding-Fabric-1.21.4-1.2.1.jar52.4 KB 3
1.20.1QuiltModernKeyBinding-Quilt-1.0.0+1.20.1.jar41.7 KB

FAQ

Which Minecraft versions does Modern KeyBinding [Fabric] work on?

There are files for 1.21.4, 1.21.3, 1.21.2, 1.21.1, 1.20.1. The newest is 1.21.4.

Is Modern KeyBinding [Fabric] for Forge or Fabric?

There are files for Fabric: 1.21.1–1.21.4 and for Quilt: 1.20.1. There are no files for Forge or NeoForge: a mod for another loader will not start.

Does Modern KeyBinding [Fabric] need other mods?

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

Which Java does Modern KeyBinding [Fabric] need?

Minecraft 1.21.4 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download Modern KeyBinding [Fabric] safely?

On this page: the file ModernKeyBinding-Fabric-1.21.4-1.2.1.jar (52 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 9a7c2d8f77e8ef92dbb5854d675551b5642ca6e3.

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