Top 7 java-edition Open-Source Projects

Geyser

464 4,430 9.4 Java

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

Project mention: PaperMC/Paper: The most widely used, high performance Minecraft server | news.ycombinator.com | 2024-03-10

geckolib

9 543 8.9 Java

GeckoLib is an animation engine for Minecraft mods, with support for complex 3D keyframe-based animations, numerous easings, concurrent animation support, sound and particle keyframes, event keyframes, math-based animations, and more. Available for all major modloaders.
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Floodgate

11 528 6.1 Java

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

Project mention: How to Enable Crossplay on Minecraft Server: Bedrock and Java Edition | /r/FlameCord | 2023-07-21

Floodgate is another plugin that you need to install on your server to enable crossplay. You can download it from their official website or from their GitHub page. There are different versions of Floodgate for different types of servers, such as Spigot, Paper, BungeeCord, Waterfall and more. Make sure you download the version that matches your server type.

XSeries

1 359 8.0 Java

Library for cross-version Minecraft Bukkit support and various efficient API methods.
Dovetail

2 52 9.0 TypeScript

A cross-platform NBT editor built on the web! (by Offroaders123)

Project mention: I don't know what else to do, I need help | /r/Minecraft | 2023-05-26

This GitHub website allows you to edit NBT Data without installing anything.

NBTify

1 25 9.1 TypeScript

A library to read and write NBT files on the web!
cbwxproxy

1 2 0.0 Shell

CubeWorx Minecraft Server Proxy Image utilizing Traefik.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).