目前 Apache 官网 显示，已经开源175个项目，下面是项目列表。
| 项目名称 | 官网主页 | 项目简述 |
|---|---|---|
| HTTP Server | http://httpd.apache.org/ | Apache Web服务器（httpd） |
| Abdera | http://abdera.apache.org/ | Atom 发布协议实现 |
| Accumulo | http://accumulo.apache.org/ | 有序的分布式键值对存储 |
| ACE | http://ace.apache.org/ | Centralized life cycle management and deployment of OSGi based and related modular software artifacts for distribution. |
| ActiveMQ | http://activemq.apache.org/ | 分布式消息系统 |
| Airavata | http://airavata.apache.org/ | 工作流和计算任务管理中间件 |
| Allura | http://allura.apache.org/ | 软件项目托管 |
| Ambari | http://ambari.apache.org/ | Hadoop集群管理 |
| Ant | http://ant.apache.org/ | 基于Java的构建工具 |
| Any23 | http://any23.apache.org/ | Anything to Triples |
| Apex | http://apex.apache.org/ | 企业级统一流、批处理引擎 |
| APR | http://apr.apache.org/ | Apache Portable Runtime libraries |
| Archiva | http://archiva.apache.org/ | Build Artifact Repository Manager |
| Aries | http://aries.apache.org/ | 企业OSGi应用程序编程模型 |
| Arrow | http://arrow.apache.org/ | Powering Columnar In-Memory Analytics |
| AsterixDB | http://asterixdb.apache.org/ | 开源大数据管理系统 |
| Aurora | http://aurora.apache.org/ | Mesos framework for long-running services and cron jobs |
| Avro | http://avro.apache.org/ | 序列化系统 |
| Axis | http://axis.apache.org/ | Java SOAP引擎 |
| Bahir | http://bahir.apache.org/ | 扩展到分布式分析平台，如Apache Spark |
| Beam | http://beam.apache.org/ | 用于定义和执行数据处理管道的编程模型，SDK和运行程序 |
| Bigtop | http://bigtop.apache.org/ | Apache Hadoop生态系统集成和分发项目 |
| Bloodhound | http://bloodhound.apache.org/ | Issue tracking, wiki and repository browser |
| BookKeeper | http://bookkeeper.apache.org/ | 可用于构建复制状态机的复制日志服务 |
| Brooklyn | http://brooklyn.apache.org/ | 通过自定义蓝图来实现建模、监控和管理应用程序的框架 |
| Buildr | http://buildr.apache.org/ | 简单直观的Java应用程序构建系统 |
| BVal | http://bval.apache.org/ | Apache BVal：JSR-303 Bean验证实现和扩展 |
| Calcite | http://calcite.apache.org/ | 动态数据管理框架 |
| Camel | http://camel.apache.org/ | 基于Spring的集成框架，实现企业集成模式 |
| Cassandra | http://cassandra.apache.org/ | 高度可扩展的第二代分布式数据库 |
| Cayenne | http://cayenne.apache.org/ | 用户友好的Java ORM与工具 |
| Celix | http://celix.apache.org/ | 执行适用于C的OSGi规范 |
| Chemistry | http://chemistry.apache.org/ | CMIS（内容管理互操作性服务）客户端和服务器 |
| Chukwa | http://chukwa.apache.org/ | 用于监控大型分布式系统的开源数据收集系统 |
| Clerezza | http://clerezza.apache.org/ | OSGi的语义链接数据 |
| CloudStack | http://cloudstack.apache.org/ | 基础设施即服务解决方案 |
| Cocoon | http://cocoon.apache.org/ | Web开发框架：分离关注点，基于组件 |
| Commons | http://commons.apache.org/ | 可重用的Java组件 |
| Cordova | http://cordova.apache.org/ | 使用HTML，CSS和JavaScript构建本机移动应用程序的平台 |
| CouchDB | http://couchdb.apache.org/ | RESTful 的文档数据库 |
| Creadur | http://creadur.apache.org/ | 软件分发的理解和审计 |
| Crunch | http://crunch.apache.org/ | 简单高效的MapReduce管道 |
| cTAKES | http://ctakes.apache.org/ | 自然语言处理（NLP）工具，用于从电子医疗记录临床自由文本中提取信息 |
| Curator | http://curator.apache.org/ | Java libraries that make using Apache ZooKeeper easier |
| CXF | http://cxf.apache.org/ | Service Framework |
| DB | http://db.apache.org/ | Database access |
| DeltaSpike | http://deltaspike.apache.org/ | Portable CDI extensions that provide useful features for Java application developers |
| Directory | http://directory.apache.org/ | Apache Directory Server |
| Drill | http://drill.apache.org/ | Schema-free SQL Query Engine for Apache Hadoop, NoSQL and Cloud Storage |
| Eagle | http://eagle.apache.org/ | 开源分析解决方案，可在大数据平台上即时识别安全和性能问题 |
| Empire-db | http://empire-db.apache.org/ | Relational Data Persistence |
| Falcon | http://falcon.apache.org/ | 数据管理和处理平台 |
| Felix | http://felix.apache.org/ | OSGi Framework and components. |
| Flex | http://flex.apache.org/ | Application framework for expressive web applications that deploy to all major browsers, desktops and devices. |
| Flink | http://flink.apache.org/ | platform for scalable batch and stream data processing |
| Flume | http://flume.apache.org/ | 用于高效收集，聚合和移动大量日志数据的可靠服务 |
| Forrest | http://forrest.apache.org/ | Aggregated multi-channel documentation, separation of concerns |
| Geode | http://geode.apache.org/ | 低延迟，高并发数据管理解决方案 |
| Geronimo | http://geronimo.apache.org/ | Java2, Enterprise Edition (J2EE) container |
| Giraph | http://giraph.apache.org/ | Iterative graph processing system built for high scalability |
| Gora | http://gora.apache.org/ | ORM framework for column stores such as Apache HBase and Apache Cassandra with a specific focus on Hadoop |
| Groovy | http://groovy.apache.org/ | A multi-faceted language for the Java platform |
| Gump | http://gump.apache.org/ | Continuous integration of open source projects |
| Hadoop | http://hadoop.apache.org/ | Distributed computing platform |
| Hama | http://hama.apache.org/ | a Bulk Synchronous Parallel computing framework on top of Apache Hadoop |
| HBase | http://hbase.apache.org/ | Apache Hadoop Database |
| Helix | http://helix.apache.org/ | A cluster management framework for partitioned and replicated distributed resources |
| Hive | http://hive.apache.org/ | Data warehouse infrastructure using the Apache Hadoop Database |
| HttpComponents | http://hc.apache.org/ | Java toolset of low level HTTP components |
| Isis | http://isis.apache.org/ | Framework for rapidly developing domain-driven apps in Java |
| Ignite | http://ignite.apache.org/ | High-performance, integrated and distributed in-memory platform for computing and transacting on large-scale data sets in real-time |
| Jackrabbit | http://jackrabbit.apache.org/ | Content Repository for Java |
| James | http://james.apache.org/ | Java Apache Mail Enterprise Server |
| jclouds | http://jclouds.apache.org/ | Java cloud APIs and abstractions |
| Jena | http://jena.apache.org/ | Java framework for building Semantic Web applications |
| JMeter | http://jmeter.apache.org/ | Java performance and functional testing |
| JSPWiki | http://jspwiki.apache.org/ | Leading open source WikiWiki engine, feature-rich and built around standard J2EE components (Java, servlets, JSP). |
| Johnzon | http://johnzon.apache.org/ | JSR-353 compliant JSON parsing; modules to help with JSR-353 as well as JSR-374 and JSR-367 |
| jUDDI | http://juddi.apache.org/ | Java implementation of the Universal Description, Discovery, and Integration specification |
| Kafka | http://kafka.apache.org/ | Distributed publish-subscribe messaging system |
| Karaf | http://karaf.apache.org/ | Server-side OSGi distribution |
| Knox | http://knox.apache.org/ | Simplify and normalize the deployment and implementation of secure Hadoop clusters |
| Kudu | http://kudu.apache.org/ | A distributed columnar storage engine built for the Apache Hadoop ecosystem |
| Kylin | http://kylin.apache.org/ | Extreme OLAP Engine for Big Data |
| Lens | http://lens.apache.org/ | Unified analytics platform |
| Libcloud | http://libcloud.apache.org/ | Unified interface to the cloud |
| Logging | http://logging.apache.org/ | Cross-language logging services |
| Lucene | http://lucene.apache.org/ | Search engine library |
| Lucene.Net | http://lucenenet.apache.org/ | Search engine library targeted at .NET runtime users. |
| Lucy | http://lucy.apache.org/ | Search engine library for dynamic languages |
| Mahout | http://mahout.apache.org/ | Scalable machine learning library |
| ManifoldCF | http://manifoldcf.apache.org/ | Framework for connecting source content repositories to target repositories or indexes. |
| Marmotta | http://marmotta.apache.org/ | An Open Platform for Linked Data |
| Maven | http://maven.apache.org/ | Java project management and comprehension tools |
| Mesos | http://mesos.apache.org/ | a cluster manager that provides efficient resource isolation and sharing across distributed applications |
| MetaModel | http://metamodel.apache.org/ | common interface for discovery, exploration of metadata and querying of different types of data sources |
| MINA | http://mina.apache.org/ | Multipurpose Infrastructure for Network Application |
| MyFaces | http://myfaces.apache.org/ | JavaServer(tm) Faces implementation and components |
| Nutch | http://nutch.apache.org/ | Open Source Web Search Software |
| Nifi | http://nifi.apache.org/ | Easy to use, powerful, and reliable system to process and distribute data |
| ODE | http://ode.apache.org/ | Orchestration Director Engine: Business Process Management (BPM), Process Orchestration and Workflow through service composition. |
| OFBiz | http://ofbiz.apache.org/ | Open for Business: enterprise automation software |
| Olingo | http://olingo.apache.org/ | OASIS OData protocol libraries |
| Oltu | http://oltu.apache.org/ | OAuth protocol implementation in Java |
| OODT | http://oodt.apache.org/ | Object Oriented Data Technology (middleware metadata) |
| Oozie | http://oozie.apache.org/ | A workflow scheduler system to manage Apache Hadoop jobs. |
| Open Climate Workbench | http://climate.apache.org/ | Climate model evaluation |
| OpenJPA | http://openjpa.apache.org/ | OpenJPA: Object Relational Mapping for Java |
| OpenMeetings | http://openmeetings.apache.org/ | OpenMeetings: Web-Conferencing and real-time collaboration |
| OpenNLP | http://opennlp.apache.org/ | Machine learning based toolkit for the processing of natural language text |
| OpenOffice | http://openoffice.apache.org/ | An open-source, office-document productivity suite |
| OpenWebBeans | http://openwebbeans.apache.org/ | OpenWebBeans: JSR-299 Context and Dependency Injection for Java EE Platform Implementation |
| ORC | http://orc.apache.org/ | the smallest, fastest columnar storage for Hadoop workloads |
| Parquet | http://parquet.apache.org/ | columnar storage format available to any project in the Apache Hadoop ecosystem |
| PDFBox | http://pdfbox.apache.org/ | Java library for working with PDF documents |
| Perl | http://perl.apache.org/ | Dynamic websites using Perl |
| Phoenix | http://phoenix.apache.org/ | High performance relational database layer over Apache HBase for low latency applications |
| Pig | http://pig.apache.org/ | Platform for analyzing large data sets |
| Pivot | http://pivot.apache.org/ | Rich Internet applications in Java |
| POI | http://poi.apache.org/ | Java API for OLE 2 Compound and OOXML Documents |
| Polygene | http://polygene.apache.org/ | community based effort exploring Composite Oriented Programming for domain centric application development |
| Portals | http://portals.apache.org/ | Portal technology |
| Qpid | http://qpid.apache.org/ | Multiple language implementation of the latest Advanced Message Queuing Protocol (AMQP) |
| Ranger | http://ranger.apache.org/ | framework to enable, monitor and manage comprehensive data security across the Hadoop platform. |
| REEF | http://reef.apache.org/ | Retainable Evaluator Execution Framework |
| River | http://river.apache.org/ | Jini service oriented architecture |
| Roller | http://roller.apache.org/ | Java blog server |
| Samza | http://samza.apache.org/ | distributed stream processing framework |
| Santuario | http://santuario.apache.org/ | XML Security in Java and C++ |
| Sentry | http://sentry.apache.org/ | Fine grained authorization to data and metadata in Apache Hadoop |
| Serf | http://serf.apache.org/ | High performance C-based HTTP client library built upon the Apache Portable Runtime (APR) library |
| ServiceMix | http://servicemix.apache.org/ | Enterprise Service Bus |
| Shiro | http://shiro.apache.org/ | Powerful and easy-to-use application security framework |
| SIS | http://sis.apache.org/ | Spatial Information System |
| Sling | http://sling.apache.org/ | Web Framework for JCR Content Repositories |
| SpamAssassin | http://spamassassin.apache.org/ | Mail filter to identify spam |
| Spark | http://spark.apache.org/ | Fast and general engine for large-scale data processing |
| Sqoop | http://sqoop.apache.org/ | Bulk Data Transfer for Apache Hadoop and Structured Datastores |
| Stanbol | http://stanbol.apache.org/ | Reusable components for semantic content management |
| STeVe | http://steve.apache.org/ | Apache's Python based single transferable vote software system |
| Storm | http://storm.apache.org/ | Distributed, real-time computation system |
| Stratos | http://stratos.apache.org/ | highly-extensible Platform-as-a-Service (PaaS) framework |
| Struts | http://struts.apache.org/ | Model 2 framework for building Java web applications |
| Subversion | http://subversion.apache.org/ | Version Control |
| Synapse | http://synapse.apache.org/ | Enterprise Service Bus and Mediation Framework |
| Syncope | http://syncope.apache.org/ | Managing digital identities in enterprise environments |
| Tajo | http://tajo.apache.org/ | Big data warehouse system on Apache Hadoop |
| Tapestry | http://tapestry.apache.org/ | Component-based Java Web Application Framework |
| Tcl | http://tcl.apache.org/ | Dynamic websites using TCL |
| Tez | http://tez.apache.org/ | High-performance and scalable distributed data processing framework |
| Thrift | http://thrift.apache.org/ | Framework for scalable cross-language services development |
| Tika | http://tika.apache.org/ | Content Analysis and Detection Toolkit |
| Tiles | http://tiles.apache.org/ | A templating framework for web application user interfaces |
| Tinkerpop | http://tinkerpop.apache.org/ | A graph computing framework for both graph databases (OLTP) and graph analytic systems (OLAP) |
| Tomcat | http://tomcat.apache.org/ | A Java Servlet and JSP Container |
| TomEE | http://tomee.apache.org/ | Java EE Web Profile built on Apache Tomcat |
| Traffic Server | http://trafficserver.apache.org/ | A fast, scalable and extensible HTTP/1.1 compliant caching proxy server |
| Turbine | http://turbine.apache.org/ | A Java Servlet Web Application Framework and associated component library |
| Twill | http://twill.apache.org/ | Use Apache Hadoop YARN's distributed capabilities with a programming model that is similar to running threads |
| UIMA | http://uima.apache.org/ | Framework and annotators for unstructured information analysis |
| Usergrid | http://usergrid.apache.org/ | The BaaS Framework you run |
| VCL | http://vcl.apache.org/ | Virtual Computing Lab |
| Velocity | http://velocity.apache.org/ | A Java Templating Engine |
| VXQuery | http://vxquery.apache.org/ | A parallel XQuery processor |
| Web Services | http://ws.apache.org/ | Projects related to Web Services |
| Whimsy | http://whimsy.apache.org/ | Tools that help automate various administrative tasks or information lookup activities |
| Wicket | http://wicket.apache.org/ | Component-based Java Web Application Framework. |
| Wink | http://wink.apache.org/ | RESTful Web services Framework |
| Xalan | http://xalan.apache.org/ | XSLT processors in Java and C++ |
| Xerces | http://xerces.apache.org/ | XML parsers in Java, C++ and Perl |
| XMLBeans | http://xmlbeans.apache.org/ | XML-Java binding tool |
| XML Graphics | http://xmlgraphics.apache.org/ | Conversion from XML to graphical output |
| Yetus | http://yetus.apache.org/ | Collection of libraries and tools that enable contribution and release processes for software projects |
| Zeppelin | http://zeppelin.apache.org/ | A web-based notebook that enables interactive data analytics |
| ZooKeeper | http://zookeeper.apache.org/ | 集中服务用于维护配置信息 |