HoloBuilder - Schematic Loader
by Asashiin
HoloBuilder is a client-side schematic viewer that loads local schematic files and draws them as translucent holograms in the world, so a builder can line up a structure before placing blocks.
What it does
Schematics are read from the holobuilder/schematics/ folder and shown as translucent in-world holograms. The position can be moved relative to the direction the player is looking, and the schematic can be rotated 90 degrees horizontally or vertically around its center or mirrored. A comparison mode checks the expected blocks against the current world, marks incorrect blocks in red and can optionally outline blocks that are already correct. Missing and incorrect blocks can be counted to prepare materials, and a layer view supports building one layer at a time.
The mod supports .schem, .schematic and .litematic files, which are NBT-based, along with NBT imports in either form. Its own .holo format is the recommended and most reliable choice, since unusual external files can expose edge cases depending on metadata and block states. It also includes simple client commands for selecting a cuboid area and exporting it to holobuilder/schematics/, plus optional build assist tools for creative mode. HoloBuilder runs on Fabric and NeoForge for 1.21.1 – 26.2, with 0.1.5-1 as the latest file for 1.21.11, and it is licensed under All rights reserved, so it is not open source.
Key features
Schematic hologram preview
Local schematics appear as translucent guides in the world, so the build can be checked before any block is placed.
Block comparison
Expected blocks are compared with the current world, with incorrect blocks highlighted in red and correct ones optionally outlined.
Placement and transforms
The schematic can be moved relative to the player's view, rotated 90 degrees and mirrored.
Material inspection and export
Missing blocks can be inspected to prepare materials, and selected areas can be exported as schematics.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does HoloBuilder need to be installed on the server?
Which schematic formats does HoloBuilder read?
Why might HoloBuilder cause lag with large builds?
In the catalog
HoloBuilder - Schematic Loader is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 13,894 mods support Minecraft 26.2.
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What the author says
HoloBuilder is a client-side schematic hologram builder for Minecraft. It loads local schematic files and renders them as a translucent in-world guide, so you can line up a build, inspect missing or incorrect blocks, prepare materials, and work layer by layer without installing anything on the server. The mod is…
Official listing
- Modrinth page
- modrinth.com/mod/holobuilder-schematic-loader
- Owner
- Asashiin
- Published
- 2026-06-22
- Updated on Modrinth
- 2026-10-12
- Facts verified
- 2026-10-15