ModsFinder

BlockPlacementPreview[+]

by _Wintr__

BlockPlacementPreview[+] shows an outline of a block before it is placed, so the player can see its exact shape and orientation first.

FabricClient-side onlyMIT License1.21.1

What it does

Before a block is placed, the outline of the block appears at the target spot. Whatever ends up on the surface after a click is what the outline showed, block orientation included, so a stair set to the off position appears in the same state it will take once placed. A hotkey turns the preview on and off while the player builds. Fabric API is required. The mod runs on the client alone, so a server does not need it and players join without installing it. It is released under the MIT License, and it is not open source. Files are published for Fabric and 1.21.1 only.

Key features

  1. Outline preview

    The outline of the block to be placed is drawn at the target position before the block is set down.

  2. Exact placement result

    The preview follows the real outcome, including block orientation such as a stair that is toggled off.

  3. Hotkey control

    A hotkey lets the player switch the preview on or off while building.

Compatibility

Latest build for each game version and loader.

1.21.11.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

How it compares

Full comparison

Smart Placement is also client-side only and is open source under the MIT License, with files for 1.21 – 1.21.11. Disc Preview is client-side only and not open source, released for 1.21.11 alone.

ModLoadersGame versionsEnvironmentUpdated
BlockPlacementPreview[+]Fabric1.21.1Client-side only2026-04-05
Smart PlacementFabric1.21 – 1.21.11Client-side only2026-05-25
Disc PreviewFabric1.21.11Client-side only2026-07-10

Questions

Does BlockPlacementPreview[+] need Fabric API?

Yes. Fabric API is a required dependency and must be installed alongside the mod.

Does a server need BlockPlacementPreview[+] installed?

No. The mod is client-side only, so players install it on their own game and the server runs without it.

In the catalog

BlockPlacementPreview[+] is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 32,366 mods support Minecraft 1.21.1.

Game mechanics mods29,952Fabric modsMods for 1.21.132,366

More from _Wintr__

All projects
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What the author says

Block Placement Preview shows an outline preview of the exact block shape before placement. The preview matches the real placement result, including block orientation such as stairs, and can be toggled on or off with a hotkey.
_Wintr__, on the Modrinth page

Official listing

Owner
_Wintr__
Published
2026-04-05
Updated on Modrinth
2026-04-05
Facts verified
2026-10-15

Tags

Game mechanicsUtility
Open on ModrinthCompare