Netty project - an event-driven asynchronous network application framework

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

A bridge/proxy allowing you to connect to Minecraft: Java Edition servers with Minecraft: Bedrock Edition.

Automated mass refactoring of source code.

A permissions plugin for Minecraft servers.

The modern Essentials suite for Spigot and Paper.

Join any Minecraft Bedrock Edition server IP on Xbox One, Nintendo Switch, and PS4/PS5

Modern Java decompiler aiming to be as accurate as possible, with an emphasis on output quality. Fork of the Fernflower decompiler.

Fully async, multithreaded, predictive, open source, 3.01 reach, 1.005 timer, 0.01% speed, 99.99% antikb, "bypassable" 1.8-1.21 minecraft anticheat.

Libre Minecraft mappings, free to use for everyone. No exceptions.

Information about the fractureiser malware (June 2023)

A user-interface library for Minecraft: Java Edition

A powerful networking library for Minecraft packet processing and manipulation.

If you fork this then you can say you forked a potato.

Hybrid mode plugin to allow for connections from Geyser to join online mode servers.

A simple Geyser extension that broadcasts the server over Xbox Live.

A simple configuration library for Java applications providing a node structure, a variety of formats, and tools for transformation

A protocol library for Minecraft Bedrock Edition

ViaVersion addon to add support for Minecraft: Bedrock Edition servers

Brand new proxy server for Minecraft: Bedrock Edition

The next-generation Minecraft: Bedrock Edition server software aims to be reliable, fast and feature-rich 🌟

A companion mod to Geyser which allows for Bedrock players to join modded Minecraft: Java Edition servers.

GeyserConnect is an easy way for bedrock clients to connect to any Java edition servers without having to run anything.

A resource-pack library for Minecraft: Java Edition

PackConverter is a library for converting Java Edition resource packs to Bedrock Edition.

Library for creating custom, server side guis on Fabric

Mixin library for mixin'ing into other mod's mixins

Fabric mod for support forward player data from velocity.

Simple and easy to use Minecraft microsoft authentication library (Java and Bedrock)

Host your singleplayer worlds without having to run a server or setup port forwarding! In the future, we also plan to support Bedrock Edition clients through the use of Geyser.