Key Holder

Ever needed to hold down a key for a while — forward to walk into a wall, space to keep jumping, your sprint key, a macro-bound key from another mod — without actually holding it? Key Holder does it for you.

Pick any key or mouse button and toggle it "held." Key Holder simulates that key being pressed every tick until you turn it off, exactly as if you were holding it down yourself.

Features

Pick any key — keyboard or mouse, via a chat command or a click-to-capture config field
One-button toggle — bind "Toggle Key Hold" in Controls to start/stop instantly, no typing required
Chat commands for quick or scripted use
Mod Menu integration — a Cloth Config screen if you'd rather click than type
Client-side only — no server install needed, safe for any server (single-player and multiplayer alike)

Commands

Command	What it does
`/keyholder set <key>`	Choose the key to hold — e.g. `w`, `space`, `key.mouse.left`
`/keyholder on`	Start holding the configured key
`/keyholder off`	Stop holding it
`/keyholder toggle`	Flip it on/off
`/keyholder status`	Show whether it's active and which key is set

Requirements

Minecraft 26.2
Fabric Loader 0.18.4+
Fabric API
Optional: Mod Menu + Cloth Config for the in-game config screen

Source

Open source under the MIT license: https://github.com/the-real-ltcg/key-holder