BlockOwner
by mastercion
BlockOwner records which player placed each block, and a menu lets operators inspect and highlight those placements on a Fabric server.
What it does
A tool item named blockowner, whose default tool is a wooden hoe, is used to find out which player placed a given block. Players can also highlight placed blocks by a player name or clear a visualization within a range of at least 10 blocks. The menu opens on a screen where placed blocks can be viewed and highlighted, and the message shown when inspecting a block can be customized.
The mod works entirely on the server, so clients need no installation. Using it requires operator permissions. Other settings include the order of the date and player fields, colors for those entries through Minecraft color codes, and a log level that controls how verbose the mod's logs are. Files are available for Fabric only, released under the Apache License 2.0, with source code and an issue tracker linked from the project.
Key features
Placed block lookup
The blockowner tool reports which player placed a block, so builds can be traced back to their author.
Placement menu
A menu lists the blocks each player placed, and selected placements can be highlighted in the world.
Area visualization
Placements by a named player can be visualized within a chosen range, and the visualization can be cleared again.
Customizable inspection message
The message shown when a block is inspected can be changed, along with the order of date and player fields and their colors.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners and operators who run Fabric servers and need to trace block placements to individual players. Because the mod is server-side only, players can join without installing anything.
How it compares
Mob Vision is a client-side only Fabric mod for version 1.21.4 under All rights reserved, so it works on a single player's client and does not track block placements. Facing Direction is also client-side only, released under the MIT License for 1.21.11, and shows block orientation rather than placement history. Duck is an optional client or server mod for 1.20 – 1.21, open source under the GNU Lesser General Public License v3.0 or later, which is used for other purposes.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| BlockOwner | Fabric | 1.20.5 – 1.21.2 | Server-side only | 2025-12-30 |
| Mob Vision | Fabric | 1.21.4 | Client-side only | 2025-03-12 |
| Facing Direction | Fabric | 1.21.11 | Client-side only | 2026-04-09 |
| Duck | Fabric | 1.20 – 1.21 | Client or server, optional | 2024-06-14 |
Questions
Does BlockOwner need to be installed on clients?
Which game versions does BlockOwner support?
Can the inspection message be changed?
In the catalog
BlockOwner is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 12,072 mods support Minecraft 1.21.2.
More from mastercion
Similar mods
What the author says
To describe the mod in few words. You now know who placed that block! This mod requires operator permissions to function and works entirely server-side, so there's no need for any client-side installation or configuration.
Official listing
- Modrinth page
- modrinth.com/mod/blockowner
- Owner
- mastercion
- Published
- 2024-07-21
- Updated on Modrinth
- 2025-12-30
- Facts verified
- 2026-10-15