J2B MC Docs

~1 min read v3.2.1 Fabric

Overview #

J2B MC brings Bedrock functionality into Java Edition, including Bedrock gameplay mode and direct Bedrock server connectivity.

Two editions, two sets of capabilities. J2B MC (Java 2 Bedrock) brings Bedrock gameplay features into Java Edition and targets direct Bedrock server connectivity — so Java players get the best of both worlds.

Quick start #

  1. Install the J2B MC mod for your 1.21.x version.
  2. Toggle Bedrock gameplay mode from the in-game menu.
  3. Explore the /j2b command suite.
  4. Test Bedrock server connectivity as it matures.

Frequently asked questions #

Can I join Bedrock servers?
The RakNet client and login flow exist; online auth and real-server verification are still on the roadmap.
Does Bedrock gameplay change PvP?
Yes — combat and movement are reworked toward Bedrock behaviour.
Which versions are supported?
1.21 through 1.21.11.

Compatibility #

PropertyValue
Loader / platformFabric
Minecraft versions1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11
Latest version3.2.1

26.x builds are blocked upstream (no mappings).