Build undo

Build Undo is a lightweight quality-of-life Fabric mod for builders who sometimes place a block in the wrong spot and want a quick, fair way to fix it.

The mod tracks your own successful block placements and lets you undo or redo them with keybinds. It is designed to feel like a small building helper, not a cheat tool or WorldEdit replacement.

Features

Undo your own recently placed blocks
Redo blocks you just undid
Per-player placement history
Configurable history size
Configurable undo/redo distance
Optional item return in Survival
Optional sound and particle effects
In-game settings screen
Server-side safety checks
No undo for blocks changed after placement
No undo for naturally generated blocks or other players’ blocks
Default Keybinds

Z: Undo last placed block
Y: Redo last undone block
U: Open Build Undo settings
Commands

/buildundo undo
/buildundo redo
/buildundo config show
/buildundo config history
/buildundo config distance
/buildundo config returnItems
/buildundo config effects
Use distance 0 for unlimited range.

Compatibility

Minecraft (show versions)
Fabric Loader
Fabric API required