Blocks Previewer
Preview blocks before placing!

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.)
- Use J to switch between previewing:
Showcase
TRANSPARENT mode

OUTLINE mode

CONFIGS

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 |
How to Install Blocks Previewer (Mod)
Blocks Previewer by tricube is verified for Fabric, Forge, Neoforge across Minecraft versions 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1 (latest release: 2.1.1+1.21.11-neoforge, file size: 179 KB). Follow the steps below to install it safely from ModCraft.tv:
- Click the Download button above and select your Minecraft version (1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1) and platform (Fabric, Forge, Neoforge).
- Make sure you have the compatible loader or environment installed for Fabric, Forge, Neoforge.
- Move the downloaded Blocks Previewer file into your Minecraft
.minecraft/modsfolder and launch the game.
All Versions
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- migrate to craft config lib
- added block filtering
- improved accuracy of block previews
- migrate to craft config lib
- added block filtering
- improved accuracy of block previews
- Changed to cloth configs for configs
- Added outline as a method to view block previews
- Improved block validation logic