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Blocks Previewer

Client-side mod to preview how blocks will be placed!
by tricube
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4,994 downloads
0 likes
Updated Jul 6, 2026
0 hypes
Utility & QoL

Blocks Previewer

Preview blocks before placing!

showcase1

Ever placed a stair or piston the wrong way and had to break it again? Blocks Previewer lets you see how a block will be oriented before it’s placed, saving your time and frustration, especially useful for builders and redstoners.

This is a purely client-sided mod, and does not interact the server. Works similarly to Create’s placement preview, but for any block in Minecraft.

To open config for the mod, use the command /blockspreviewer or by using Mod Menu for Fabric or the built in (neo)Forge config menu.

Features

  • Controls

    • Press G to toggle preview
    • Hold H for a momentary preview

    (Both keys are fully configurable in the controls menu.)

  • Block filtering

    • Use J to switch between previewing:
    • All blocks
    • Only directional blocks (stairs, pistons, observers, etc.)

Showcase

TRANSPARENT mode

showcase2

OUTLINE mode

outline

CONFIGS

config

Dependencies (For versions >= 2.1.0)

Fabric Dependencies

Mod Menu is optional. All else is required.

Modrinth Curseforge
Craft Config Lib Craft Config Lib
Fabric API Fabric API
Mod Menu Mod Menu
Blocks Previewer 2.1.1 Neoforge 1.21.11
MC NeoForge, 1.21.11
Release 2026-05-31 Get
Blocks Previewer 2.1.1 Fabric 1.21.1
MC Fabric, 1.21.1
Release 2026-05-31 Get
blockpreview-1.0.0 1.20.1 Forge.jar
MC Client, 1.20.1, Forge
Release 2026-01-09 Get

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