1.NationalSecurityAgency / ghidra
Ghidra is a software reverse engineering (SRE) framework
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Ghidra is a software reverse engineering (SRE) framework
A tool for reverse engineering Android apk files
Orchestrate everything, everywhere. The open-source control plane for workflows across data, infrastructure, business processes and AI agents. Declarative YAML, event-driven, any language, Git-versioned, scalable to millions of executions.
Code as configuration. Annotate a Java entity with @Erupt and ship a production-grade admin backend in minutes — UI, RBAC, audit logs and APIs, all generated at runtime. No codegen, no frontend.
PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.
Open Source Identity and Access Management For Modern Applications and Services
Free implementation of Play Services
Free universal database tool and SQL client
【低代码v2.0,一句话即可生成整个系统】企业级AI低代码平台,一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖:AI聊天、知识库、流程编排、MCP插件等,兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->AI修改」开发模式,解决 Java 项目 90% 重复工作,提高效率又不失灵活。
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
Apache Kafka - A distributed event streaming platform
mall项目是一套电商系统,包括前台商城系统及后台管理系统,基于Spring Boot+MyBatis实现,采用Docker容器化部署。 前台商城系统包含首页门户、商品推荐、商品搜索、商品展示、购物车、订单流程、会员中心、客户服务、帮助中心等模块。 后台管理系统包含商品管理、订单管理、会员管理、促销管理、运营管理、内容管理、统计报表、财务管理、权限管理、设置等模块。
The ZAP by Checkmarx Core project
Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
🔎 Open source distributed and RESTful search engine.
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
Open source real-time translation app for Android that runs locally
Apache Doris is a real-time analytics and hybrid search database for AI agents.
Agentic AI Framework for Java Developers
World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.
a fast, scalable, multi-language and extensible build system
Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.
Desktop/Android/HTML5/iOS Java game development framework
an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.
SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
Spring Framework
QuestDB is a high performance, open-source, time-series database
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
ZXing ("Zebra Crossing") barcode scanning library for Java, Android
Access your entire server infrastructure from your local desktop
A browser automation framework and ecosystem.
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.
Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.
微信开发 Java SDK ,支持包括微信支付,开放平台,小程序,企业微信,视频号,公众号等的后端开发
Open-Source Subscription Billing & Payments Platform
Quarkus: Supersonic Subatomic Java.
Upserts, Deletes And Incremental Processing on Big Data.
Modern Java decompiler aiming to be as accurate as possible, with an emphasis on output quality. Fork of the Fernflower decompiler.
Flyway by Redgate • Database Migrations Made Easy.
✨ 开源、免费、一站式 Java 权限认证框架,让鉴权变得简单、优雅!—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API 参数签名
Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
Synthetic Patient Population Simulator
mall-swarm是一套微服务商城系统,采用了 Spring Cloud Alibaba、Spring Boot 3.5、Sa-Token、MyBatis、Elasticsearch、Docker、Kubernetes等核心技术,同时提供了基于Vue的管理后台方便快速搭建系统。mall-swarm在电商业务的基础集成了注册中心、配置中心、监控中心、网关等系统功能。
An AI-powered next-generation open source real-time observability system.
Apache DolphinScheduler is the modern data orchestration platform. Agile to create high performance workflow with low-code
[MAINTENANCE MODE] Modular and customizable Material Design UI components for Android
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
Render After Effects animations natively on Android and iOS, Web, and React Native
Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.
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.
Efficient reliable UDP unicast, UDP multicast, and IPC message transport
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
Apache Druid: a high performance real-time analytics database.
Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
A Java architecture test library, to specify and assert architecture rules in plain Java
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Extends Valkey and Redis with over 60 objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..
Netty project - an event-driven asynchronous network application framework
Video players (IJKplayer, ExoPlayer, MediaPlayer), HTTPS, 16k page size, danmaku (bullet chat) support, external subtitles, support for filters, watermarks, and GIF screenshots, pre-roll and mid-roll ads, multiple simultaneous playback, basic seeking/dragging, volume and brightness adjustment, play-while-cache support
Apache Beam is a unified programming model for Batch and Streaming data processing.
Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.
The java implementation of Apache Dubbo. An RPC and microservice framework.
光 HikariCP・A solid, high-performance, JDBC connection pool at last.
A type-safe HTTP client for Android and the JVM
APM, Application Performance Monitoring System
A tool for mocking HTTP services
The Standard Webhooks specification
Open-Source Web UI for Apache Kafka Management
Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.
Catch common Java mistakes as compile-time errors
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.
Compiles Java bytecode to JavaScript, WebAssembly and C
A Java serialization/deserialization library to convert Java Objects into JSON and back
Apache Pulsar - distributed pub-sub messaging system
A configuration as code language with rich validation and tooling.
Resilience4j is a fault tolerance library designed for Java8 and functional programming
Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.
Persistent cluster-friendly scheduler for Java
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.
Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba middleware.
A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)
A library for debugging android databases and shared preferences - Make Debugging Great Again
OpenTelemetry Java SDK
Open source IaC Automation and Collaboration Software.
An powerful enhanced toolkit of MyBatis for simplify development
Tools to work with android .dex and java .class files
Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.