Bounding Box Outline Reloaded
by irtimaled
Bounding Box Outline Reloaded draws colored outlines around the Nether, desert, jungle, ocean, End and woodland structures so players can see their spawn areas and rooms.
What it does
Each structure type gets its own outline color: red boxes mark the areas where Blaze, Wither Skeletons and regular Skeletons spawn inside Nether Fortresses, while orange boxes enclose desert pyramids and their towers. Other types are drawn in dark green for jungle temples, cyan for ocean monuments where guardians spawn, magenta for End Cities, and brown for the rooms of woodland mansions.
The mod is useful when planning mob farms, checking spawn-proofing or locating loot-rich buildings. It works with Fabric and Forge, supports game versions 1.16.3 – 1.21 across eight release versions, and includes snapshot builds. Both the server and every player need it, and the code is open source under the MIT License, with a public source repository and issue tracker.
Key features
Nether Fortress spawn areas
Red boxes bound each separate area in a fortress where Blaze, Wither Skeletons and Skeletons can spawn.
Desert temple outlines
Orange boxes envelop the pyramid and its towers, showing the full footprint of the temple.
Ocean monument guardians
Cyan boxes indicate where guardians spawn inside an ocean monument.
End City layout
Magenta outlines trace each room of an End City, plus its passages and the airships docked there.
Woodland mansion rooms
Brown boxes outline every room within a woodland mansion.
Compatibility
Latest build for each game version and loader.
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Farm placement
Outlines of hostile spawn areas help place mob farms and check where spawning happens within a fortress or monument.
Exploring structures
Boxes around temples, End Cities and mansions make the extent of each structure visible before entering it.
Who it’s for: Players building mob farms, server owners planning spawn-proofing and anyone who wants to locate large generated structures quickly.
How it compares
Color Me Outlines is a client-side only Fabric mod, open source under the MIT License, with files for 1.19 – 1.20.1. Servux is a server-side only Fabric mod under the GNU Lesser General Public License v3.0 only, covering 1.14.4 – 26.3. Search Item In Box is a Forge mod for 1.20.1, open source under the MIT License, and it works on either side, and neither needs it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Bounding Box Outline Reloaded | Fabric and Forge | 1.16.3 – 1.21 | Client and server | 2024-07-13 |
| Color Me Outlines | Fabric | 1.19 – 1.20.1 | Client-side only | 2023-06-17 |
| Servux | Fabric | 1.14.4 – 26.3 | Server-side only | 2026-09-27 |
| Search Item In Box | Forge | 1.20.1 | Client or server, optional | 2024-08-11 |
Questions
Does Bounding Box Outline Reloaded need to be installed on the server?
Which loaders does Bounding Box Outline Reloaded support?
In the catalog
Bounding Box Outline Reloaded is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 15,770 mods support Minecraft 1.21.
Similar mods
What the author says
This mod highlights in a variety of colors and styles the different structures & features of the game:-
Official listing
- Modrinth page
- modrinth.com/mod/bbor
- Owner
- irtimaled
- Published
- 2022-08-16
- Updated on Modrinth
- 2024-07-13
- Facts verified
- 2026-10-15