FongMi / TV

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spinnaker / spinnaker

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.

OpenFeign / feign

Feign makes writing java http clients easier

apache / seatunnel

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

flowable / flowable-engine

A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.

apache / jmeter

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

karatelabs / karate

Test Automation Made Simple

iflytek / astron-agent

Enterprise-grade, commercial-friendly agentic workflow platform for building next-generation SuperAgents.

jeecgboot / jimureport

一款真正的 AI 报表诞生了！JimuChatBI —— 首款免费开源对话式智能数据分析产品（Chat2BI）。 一句话生成报表和数据大屏，支持对话式 AI 修改优化；类 Excel 在线报表设计，兼容国产信创数据源。 对着 AI 说句话，报表就出来了——表格、图表、分组汇总自动生成，复杂报表场景轻松应对。想做数据大屏？同样一句话搞定，让数据分析进入 AI 时代。

pentaho / pentaho-kettle

Pentaho Data Integration ( ETL ) a.k.a Kettle

Graylog2 / graylog2-server

Free and open log management

traccar / traccar

Open source GPS tracking platform - self-hosted or managed, 200+ device protocols

dependency-check / DependencyCheck

OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.

mapstruct / mapstruct

An annotation processor for generating type-safe bean mappers

swagger-api / swagger-core

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

apache / hertzbeat

An AI-powered next-generation open source real-time observability system.

zhukunpenglinyutong / jetbrains-cc-gui

Jetbrains Claude Code and Codex GUI Plugin

graphhopper / graphhopper

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

00-Evan / shattered-pixel-dungeon

Shattered Pixel Dungeon is an open-source traditional roguelike dungeon crawler with randomized levels and enemies, and hundreds of items to collect and use. It's based on the source code of Pixel Dungeon, by Watabou.

pig-mesh / pig

↥ ↥ ↥ Follow for updates An RBAC permission management system based on Spring Cloud 2025, Spring Boot 4, and OAuth2.

gephi / gephi

Gephi - The Open Graph Viz Platform

apache / zeppelin

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

apache / flink-cdc

Flink CDC is a streaming data integration tool

hibernate / hibernate-orm

Idiomatic persistence for Java and relational databases

apache / camel

Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.

PBH-BTN / PeerBanHelper

Automatically block unwanted, leeches and abnormal BT peers with support for customized and cloud rules.| BT 反吸血工具 - 自动封禁不受欢迎、吸血和异常的 BT 客户端，并支持自定义规则。支持 qB/qBEE/Deluge/BiglyBT/BitComet

vavr-io / vavr

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

obsidiandynamics / kafdrop

Kafka Web UI

agentscope-ai / agentscope-java

Build distributed, production-grade, long-running agents.

jindrapetrik / jpexs-decompiler

JPEXS Free Flash Decompiler (FFDec) is open-source Flash SWF decompiler and editor. Extract and edit ActionScript, images, sounds, shapes, fonts, and other SWF resources.

strimzi / strimzi-kafka-operator

Apache Kafka® running on Kubernetes

GeyserMC / Geyser

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

microsoft / typespec

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JanusGraph / janusgraph

JanusGraph: an open-source, distributed graph database

CaffeineMC / sodium

A high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter

bethington / ghidra-mcp

Ghidra MCP Server — 200+ MCP tools for AI-powered reverse engineering. GUI plugin + headless server, lazy tool loading, convention enforcement, batch operations, Ghidra Server integration, and Docker deployment.

killbill / killbill

Open-Source Subscription Billing & Payments Platform

tonikelope / megabasterd

Yet another unofficial (and ugly) cross-platform MEGA downloader/uploader/streaming suite.

diffplug / spotless

Keep your code spotless

alibaba / QLExpress

QLExpress is a powerful, lightweight, dynamic language for the Java platform aimed at improving developers’ productivity in different business scenes.

TommyLemon / Android-ZBLibrary

🔥 Android MVP 快速开发框架，做国内 「示例最全面」「注释最详细」「使用最简单」「代码最严谨」的 Android 开源 UI 框架。 🔥 An Android MVP Framework with many demos, detailed documents, simple usages and strict codes.

ReChronoRain / HyperCeiler

HyperOS enhancement module - Make HyperOS Great Again!

pmd / pmd

An extensible multilanguage static code analyzer.

runelite / runelite

Open source Old School RuneScape client

zfdang / Android-Touch-Helper

AdSkip — an Android assistant for automatically skipping app launch ads

zhkl0228 / unidbg

Allows you to emulate an Android native library, and an experimental iOS emulation

oshi / oshi

Native Operating System and Hardware Information

iflytek / skillhub

Self-hosted, open-source agent skill registry for enterprises. Publish & version skill packages, govern with RBAC and audit logs, deploy on-premise with Docker or Kubernetes.

brianfrankcooper / YCSB

Yahoo! Cloud Serving Benchmark

line / armeria

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

tencentmusic / supersonic

SuperSonic is the next-generation AI+BI platform that unifies Chat BI (powered by LLM) and Headless BI (powered by semantic layer) paradigms.

oracle / opengrok

OpenGrok is a fast and usable source code search and cross reference engine, written in Java

orientechnologies / orientdb

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.

mock-server / mockserver-monorepo

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

emanuele-f / PCAPdroid

No-root network monitor, firewall and PCAP dumper for Android

iterate-ch / cyberduck

Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for Mac and Windows.

ant-media / Ant-Media-Server

Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, adaptive bitrate, transcoding & scaling

M66B / FairEmail

Fully featured, open source, privacy friendly email app for Android

discord-jda / JDA

Java wrapper for the popular chat & VOIP service: Discord https://discord.com

jacoco / jacoco

:microscope: Java Code Coverage Library