One Slot at a Time
by dannytaylor
One Slot at a Time removes the hotbar lock, so a player can hold a single slot in one hand and use it freely.
What it does
Normally a hotbar item forces its slot to stay in use. This mod lifts that restriction, letting an item be used from one slot while the other slots remain free. Builds exist for Fabric, NeoForge and Quilt, targeting 1.21 and 1.21.1, with 1.0.2 for 1.21.1 as the latest file.
Players can run the mod on their own without any other mod installed. It runs on client and server together, so both the server and every player need it, and the code is licensed under the GNU Lesser General Public License v3.0 or later, making it open source. Source code and an issue tracker are publicly available.
Key features
Free single-slot use
A hotbar slot holding an item can be used without locking the rest of the hotbar in place.
Hotbar restriction removed
The forced-use behavior that ties the hand to one slot is removed for the hotbar.
Public source and tracker
The source code and issue tracker are published, so changes and bug reports can be followed openly.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Speedrun and showcase play
A player demonstrating a mechanic or running a speedrun can switch items more freely with one hand.
Experimental play
Players who want an unusual hotbar setup can test one-handed item use in a world.
Who it’s for: Players who want to change how hotbar slots work, and server owners who want every player on a server to have the same hotbar behavior, since the mod must be installed on both sides.
Questions
Does One Slot at a Time need Fabric API?
Which game versions does One Slot at a Time support?
Must the mod be installed on the server?
In the catalog
One Slot at a Time is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from dannytaylor
Similar mods
What the author says
To anyone that does attempt to speedrun this, feel free to share your footage! I'd love to check it out!
Official listing
- Modrinth page
- modrinth.com/mod/oneslotatatime
- Owner
- dannytaylor
- Published
- 2024-09-26
- Updated on Modrinth
- 2025-02-17
- Facts verified
- 2026-10-15