SlotStacked
by hisRoyalty
SlotStacked shows the hotbar as a vertical column of inventory slots when the player holds a hotbar number key, letting them pick an item from above the hotbar without opening the inventory.
What it does
Holding a hotbar number key opens a column of three inventory rows stacked directly above that hotbar position. Arrow keys or the scroll wheel move the highlight through the slots, and releasing the key swaps the highlighted item into the hotbar at once. The approach is modeled on the weapon selection in Half-Life. The delay before the column appears can be changed in the settings. SlotStacked is entirely client-side, so only the player's client needs it, and it is released under the MIT License. It is not open source. Builds target 1.20.1 and 1.21.1 for Fabric, Forge and NeoForge, and the latest files are 1.2.0 for 1.21.1.
Key features
Hold-to-reveal column
Holding a hotbar number key shows three inventory rows directly above that hotbar slot.
Keyboard and scroll selection
Arrow keys or the scroll wheel highlight a slot, and releasing the key swaps it into the hotbar.
Adjustable reveal delay
The delay before the inventory column appears can be configured to suit how quickly the player wants it.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Inventory Vertical Swap is a NeoForge mod for 1.21.1 under the MIT License, and it is not open source. Hotbar Quickswap is a Fabric mod for 1.21.10 – 1.21.11 under the CC0 1.0 Universal license, and it is open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SlotStacked | Fabric, Forge and NeoForge | 1.20.1 – 1.21.1 | Client-side only | 2026-07-26 |
| Inventory Vertical Swap | NeoForge | 1.21.1 | Client-side only | 2026-05-19 |
| Hotbar Quickswap | Fabric | 1.21.10 – 1.21.11 | Client-side only | 2025-12-24 |
Questions
Does SlotStacked need to be installed on the server?
In the catalog
SlotStacked is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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What the author says
SlotStacked transforms your hotbar into a vertical inventory system heavily inspired by Half-Life's weapon selection. Hold any hotbar number key for a configurable delay, and a column of three inventory slots will appear above it, displaying the items directly above that hotbar position. Use arrow keys (or scroll…
Official listing
- Modrinth page
- modrinth.com/mod/slotstacked
- Owner
- hisRoyalty
- Published
- 2026-07-11
- Updated on Modrinth
- 2026-07-26
- Facts verified
- 2026-10-15