SwapColumn

A Minecraft Fabric mod that lets you swap items between your hotbar and the inventory slots directly above it — without opening your inventory.

How It Works

SwapColumn adds a vertical swap column above any hotbar slot. When triggered, a small menu appears showing the items stacked above your selected slot. Choose one and it swaps instantly into your hotbar.

Opening the Menu

Mode 1 — Number Key:
Press the number key of the hotbar slot you are already on.
Example: you are on slot 3, press 3 — the SwapColumn opens above slot 3.

Mode 2 — Keybind:
Press your configured SwapColumn key (unbound by default).
Set it under Options → Controls → SwapColumn.

Selecting an Item

Click mode:

• Mode 1: press 1–4 to select a row (1 = current hotbar item, cancels the swap)
• Mode 2: press 1–3 to select a row, press the SwapColumn key again to cancel

Scroll mode:
Hold the opening key and scroll to highlight a row, then release to confirm.

Configuration

The config file is located at .minecraft/config/swapcolumn.json and is created automatically on first launch.

{
  "enableCycling": false,
  "enableSlotTexture": true
}

Note: Mod Menu support is planned. Until then, changes to the config file require a game restart to take effect.