CurseForge · Minecraft mod
BlueMapFrontiers - MapFrontiers 3 Compatibility
Unofficial NeoForge 1.21.1 compatibility port of BlueMapFrontiers for MapFrontiers 3, with always-visible frontier names and owners on BlueMap.
Quick answer
Which BlueMapFrontiers - MapFrontiers 3 Compatibility release should I use?
BlueMapFrontiers - MapFrontiers 3 Compatibility bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 3 required mods have matching files.
Where it goes
Is BlueMapFrontiers - MapFrontiers 3 Compatibility required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does BlueMapFrontiers - MapFrontiers 3 Compatibility bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar need?
bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar. Change the file and its required mods may change too.
Install MapFrontiers, BlueMap, JourneyMap first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add BlueMapFrontiers - MapFrontiers 3 Compatibility without breaking your instance.
Built for BlueMapFrontiers - MapFrontiers 3 Compatibility bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install MapFrontiers, BlueMap, JourneyMap first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar. It opens that exact file at the source.
About this project
What does BlueMapFrontiers - MapFrontiers 3 Compatibility add?
BlueMapFrontiers - MapFrontiers 3 Compatibility
Unofficial NeoForge 1.21.1 compatibility port of BlueMapFrontiers for MapFrontiers 3, with always-visible frontier names and owners on BlueMap.
Unofficial project: This is not an official release by ErdbeerbaerLP, MapFrontiers, or BlueMap. It is a compatibility port derived from the MIT-licensed BlueMapFrontiers project by ErdbeerbaerLP.
What does it do?
This server-side addon connects MapFrontiers 3 to BlueMap.
Global MapFrontiers frontiers that have Webmap visibility enabled are mirrored to BlueMap automatically.
Unlike the original integration, this port also adds an always-visible map label showing the frontier name and owner, so you do not have to click the region just to identify it.
Features
- Displays MapFrontiers 3 Global Frontiers on BlueMap
- Supports Vertex, Chunk, and Path frontiers
- Respects the MapFrontiers Webmap visibility flag
- Uses the frontier's configured color for BlueMap borders and fills
- Adds always-visible frontier name + owner labels
- Automatically refreshes frontier markers while the server is running
- Supports FLAT and VOLUME region rendering
- Configurable fill opacity, line opacity, Y levels, path width, update interval, and always-on-top rendering
- Keeps compatibility with the existing
config/Bluemap-Mapfrontiers.tomlconfiguration style
Requirements
Server
- Minecraft 1.21.1
- NeoForge
- BlueMap 5.x
- MapFrontiers 3.x
- Java 21
MapFrontiers' own required dependencies, including JourneyMap where applicable, are still required.
Tested with
- NeoForge 21.1.248
- BlueMap 5.7
- MapFrontiers 3.0.0-beta.12
- JourneyMap 6.0.5
- Java 21
This bridge itself only needs to be installed on the server.
Players who want to view or edit MapFrontiers in-game should still install MapFrontiers on their client as normal.
Installation
Do not install this port alongside the original BlueMapFrontiers JAR.
Both use the bluemapfrontiers mod ID and will conflict.
Replace the original integration with this port when using MapFrontiers 3.
- Install BlueMap and MapFrontiers 3 on your NeoForge 1.21.1 server.
- Place this JAR in the server's
modsfolder. - Start or restart the server.
- Make sure any Global Frontier you want displayed has Webmap visibility enabled in MapFrontiers.
The frontiers will then appear in BlueMap under the MapFrontiers marker set.
The generated configuration file is:
config/Bluemap-Mapfrontiers.toml
Credits and License
Original BlueMapFrontiers
Created by ErdbeerbaerLP
MapFrontiers / MapFrontiers API
Created by alejandrocoria
BlueMap
Created by Blue / BlueMap contributors
This compatibility port is distributed under the MIT License, matching the upstream licensing.
Original copyrights remain with their respective authors.
Compatibility
MapFrontiers 3 is still evolving, so future MapFrontiers or BlueMap updates may require compatibility updates.
If you encounter an issue, please include:
- Minecraft version
- NeoForge version
- BlueMap version
- MapFrontiers version
- Relevant server log
Project description from CurseForge.
Pick your setup
BlueMapFrontiers - MapFrontiers 3 Compatibility by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
BlueMapFrontiers - MapFrontiers 3 Compatibility versions and loaders
bluemapfrontiers-mf3-neoforge-1.21.1-1.3.0.jar
12 Sept 2026
Looking for an older file? The official CurseForge project page is in Resources.