Aura Building
A modern building assistant with 3D ghost block previews, 8 build modes, symmetry mirroring, hotbar palette mixing, terrain adaptation, and instant Ctrl+Z undo. Press B to open the menu.
- Loaders
- Forge
- Downloads on Modrinth
- 169
- Followers on Modrinth
- 1
- versions
- 2
- Updated
- August 13, 2026Aug 13
- Published
- in 2026
At a glance
Install in the game only; not needed on the server

Aura Building — Modern Building Assistant for Minecraft
Select an area, preview with translucent 3D ghost blocks, and build instantly. Supports 15 modes, Pixel Painter editor, copy/paste, terrain adaptation, 3D primitives, vertical gradients, enchantment support, and undo/redo.
Features
3D Ghost Preview — Real textures at 40% opacity, seamless face culling, and gentle pulsing animation.
Pixel Painter — Integrated 2D/3D pattern editor with pencil, eraser, fill, line tool, depth up to 32 layers, symmetry, rotation, flip, full block palette, and live in-world preview.
Copy & Paste — Select two points to copy structures, then paste 3D ghost objects relative to your crosshair.
15 Build Modes — Solid, Hollow, Walls, Floor, Circle, Cylinder, Sphere, Dome, Pyramid, Auto Roof, Arch, Smoothing, Terrain Road, Terrain Wall, Clear, Copy, Pattern.
Symmetry — Mirror along X or Z axes for automatic building duplication.
Palette Mixing — Randomly blend blocks directly from your hotbar slots; supports vertical gradients along the Y axis.
Smart Orientation — Stairs, slabs, and logs dynamically orient based on player direction and click position.
Undo/Redo — Full support for Ctrl+Z and Ctrl+Y with complete block restoration and inventory item return.
Dark GUI — Press B to access Modes, Options, and Tools. Options include symmetry, replacement, palette mixing, gradients, wireframe, color themes, and build speed (2 to 200 blocks/tick). Tools include undo history, Pixel Painter shortcut, and block counter.
Block Counter — Real-time display showing required blocks versus available inventory items with dynamic status indicators.
Controls
G — Toggle mode B — Open menu N — Open Pixel Painter Ctrl + Scroll — Switch mode V / Shift + RMB — Set point / Confirm R — Rotate selection 90° M — Toggle mirror Enter — Build Ctrl + Z — Undo Ctrl + Y — Redo
Requirements
Minecraft: 1.20.1 Loader: Forge 47.x+
License
MIT — free to use, modify, and distribute.
FAQ
How to install Aura Building?
Install Forge for your Minecraft version, download Aura Building for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Aura Building support?
Aura Building has builds for Minecraft 1.20.1.
Is Aura Building needed on the server?
Client only — no need to install it on the server