| 1. Apache Abdera | PMC | Atom Publishing Protocol Implementation | Feb 2017 |
| 2. Apache Ace | PMC | Centralized life cycle management and deployment of OSGi based and related modular software artifacts for distribution | Dec 2017 |
| 3. Apache Any23 | PMC | Anything to Triples | Jun 2023 |
| 4. Apache Apex | PMC | Enterprise-grade unified stream and batch processing engine | Sep 2019 |
| 5. Apache Archiva | PMC | Build Artifact Repository Manager | Feb 2024 |
| 6. Apache Aurora | PMC | Mesos framework for long-running services and cron jobs | Feb 2020 |
| 7. Apache Avalon | PMC | Java software for component and container programming | Nov 2004 |
| 8. Apache Axis Sandesha2/C | Subproject | Sandesha2/C was a C implementation of the WS-ReliableMessaging specification. | Sep 2014 |
| 9. Apache Axis Savan/C | Subproject | Savan/C was a C implementation of WS-Eventing specification. | Sep 2014 |
| 10. Apache Axis Savan/Java | Subproject | Savan/Java was a Java implementation of WS-Eventing specification. | Sep 2014 |
| 11. Apache Axkit | PMC | AxKit was an XML Application Server for Apache. | Aug 2009 |
| 12. Apache Bahir | PMC | Extensions to distributed analytic platforms such as Apache Spark | Jan 2024 |
| 13. Apache Beehive | PMC | Simple object model on J2EE and Struts using JSR-175 annotations | Nov 2009 |
| 14. Apache Bloodhound | PMC | Issue tracking, wiki and repository browser | Jul 2024 |
| 15. Apache Buildr | PMC | Simple and intuitive build system for Java applications | Jul 2022 |
| 16. Apache C++ Standard Library | PMC | C++ classes, templates, and functions essential for writing C++ programs | Jul 2013 |
| 17. Apache Chemistry | PMC | CMIS (Content Managment Interoperability Services) Clients and Servers | Feb 2022 |
| 18. Apache Chukwa | PMC | Open source data collection system for monitoring large distributed systems. | May 2020 |
| 19. Apache Clerezza | PMC | Semantically linked data for OSGi | Jun 2022 |
| 20. Apache Click | PMC | JEE web application framework | May 2014 |
| 21. Apache Cocoon | PMC | Web development framework: separation of concerns, component-based | Jan 2025 |
| 22. Apache Continuum | PMC | Continuous Integration and Build Server | May 2016 |
| 23. Apache Crimson | Subproject | Crimson was a Java XML parser which supports XML 1. | Aug 2010 |
| 24. Apache Crunch | PMC | Simple and Efficient MapReduce Pipelines | Jun 2020 |
| 25. Apache Deltacloud | PMC | API server and drivers necessary for connecting to cloud providers. | Jul 2015 |
| 26. Apache DeviceMap | PMC | Data repository containing device information, images and other relevant information for all sorts of mobile devices, e.g. smartphones and tablets. | Dec 2016 |
| 27. Apache DirectMemory | PMC | Off-heap cache for the Java Virtual Machine | Jul 2015 |
| 28. Apache DRAT | PMC | large scale code license analysis, auditing and reporting | Aug 2020 |
| 29. Apache Eagle | PMC | open source analytics solution for identifying security and performance issues instantly on big data platforms | Nov 2020 |
| 30. Apache ESME (Enterprise Social Messaging Environment) | PMC | Enterprise Social Messaging Environment | Jun 2013 |
| 31. Apache Etch | PMC | Cross-platform, language- and transport-independent RPC-like messaging framework | Jun 2016 |
| 32. Apache Excalibur | PMC | Inversion-of-control-style container development | Dec 2010 |
| 33. Apache Falcon | PMC | Data management and processing platform. | Jun 2019 |
| 34. Apache Forrest | PMC | Aggregated multi-channel documentation, separation of concerns | Feb 2020 |
| 35. Apache Giraph | PMC | Iterative graph processing system built for high scalability | Sep 2023 |
| 36. Apache Gora | PMC | ORM framework for column stores such as Apache HBase and Apache Cassandra with a specific focus on Hadoop | Mar 2025 |
| 37. Apache Hama | PMC | a Bulk Synchronous Parallel computing framework on top of Apache Hadoop | Apr 2020 |
| 38. Apache Harmony | PMC | Modular Java runtime with class libraries and associated tools | Nov 2011 |
| 39. Apache HAWQ | PMC | a Hadoop native SQL query engine that combines the key technological advantages of an MPP database with the scalability and convenience of Hadoop | Jul 2024 |
| 40. Apache HiveMind | PMC | Services and configuration microkernel | Mar 2009 |
| 41. Apache iBATIS | PMC | Data mapper framework to make it easier to use a relational database with object-oriented applications. | Jun 2010 |
| 42. Apache Jakarta | PMC | Diverse set of popular open source Java solutions | Dec 2011 |
| 43. Apache Jakarta Cactus | Subproject | Jakarta previously hosted Cactus, a simple test framework for unit testing server-side java code. | Aug 2011 |
| 44. Apache Jakarta ECS | Subproject | Jakarta previously hosted ECS (Element Construction Set), a Java API for generating elements for any of a variety of markup languages (examples included HTML 4. | Oct 2010 |
| 45. Apache Jakarta ORO | Subproject | Jakarta previously hosted ORO, a set of text-processing Java classes that provide Perl5 compatible regular expressions, AWK-like regular expressions, glob expressions, and utility classes for performing substitutions, splits, filtering filenames, etc. | Oct 2010 |
| 46. Apache Jakarta Regexp | Subproject | Jakarta previously hosted Regexp, a 100% Pure Java Regular Expression package. | Apr 2011 |
| 47. Apache Jakarta Slide | Subproject | Jakarta previously hosted Slide, a content repository which could serve as a basis for a content management system as well as other purposes. | Apr 2010 |
| 48. Apache Jakarta Taglibs | Subproject | Starting in 2000, Jakarta hosted the Jakarta Taglibs project, a large collection of JSP Tag Libraries. | Apr 2010 |
| 49. Apache Joshua | PMC | statistical and other forms of machine translation. | Nov 2021 |
| 50. Apache jUDDI | PMC | Java implementation of the Universal Description, Discovery, and Integration specification | Feb 2023 |
| 51. Apache Labs | PMC | A place for innovation where committers of the foundation can experiment with new ideas | Aug 2020 |
| 52. Apache Lens | PMC | Unified analytics platform | Aug 2020 |
| 53. Apache Lenya | PMC | an Open Source Java/XML Content Management System that came with revision control, multi-site management, scheduling, search, WYSIWYG editors, and workflow. | Apr 2015 |
| 54. Apache Lucy | PMC | Search engine library for dynamic languages | Jun 2018 |
| 55. Apache Marmotta | PMC | An Open Platform for Linked Data | Nov 2020 |
| 56. Apache MetaModel | PMC | common interface for discovery, exploration of metadata and querying of different types of data sources | Jun 2021 |
| 57. Apache Metron | PMC | Real-time big data security | Dec 2020 |
| 58. Apache Mnemonic | PMC | a transparent nonvolatile hybrid memory oriented library for Big data, High-performance computing, and Analytics | Feb 2025 |
| 59. Apache MRUnit | PMC | Java library that helps developers unit test Apache Hadoop map reduce jobs | Apr 2016 |
| 60. Apache MXNet | PMC | a flexible and efficient library for Deep Learning | Sep 2023 |
| 61. Apache ObJectRelationalBridge (OJB) | Subproject | OJB was an Object/Relational mapping tool that allowed transparent persistence for Java Objects against relational databases. | Jan 2011 |
| 62. Apache ODE (Orchestration Director Engine) | PMC | Business Process Management (BPM), Process Orchestration and Workflow through service composition | Aug 2019 |
| 63. Apache Oltu | PMC | OAuth protocol implementation in Java | Mar 2018 |
| 64. Apache Onami | PMC | Development and maintenance of a set of Google Guice extensions | Jan 2016 |
| 65. Apache OODT | PMC | Object Oriented Data Technology (middleware metadata) | Apr 2023 |
| 66. Apache Oozie | PMC | A workflow scheduler system to manage Apache Hadoop jobs. | Feb 2025 |
| 67. Apache Open Climate Workbench | PMC | Climate model evaluation | Oct 2020 |
| 68. Apache Pivot | PMC | Rich Internet applications in Java | Jan 2025 |
| 69. Apache Polygene | PMC | Composite Oriented Programming for domain centric application development. | Dec 2018 |
| 70. Apache PredictionIO | PMC | a machine learning server built on top of state-of-the-art open source stack, that enables developers to manage and deploy production-ready predictive services for various kinds of machine learning tasks | Sep 2020 |
| 71. Apache Quetzalcoatl | PMC | Quetzalcoatl, or Quetz as it was more commonly known, was a project charged with the creation and maintenance of open-source software related to mod_python and the Python programming language. | Jun 2010 |
| 72. Apache Rave | PMC | Web and social mashup engine | Jan 2016 |
| 73. Apache REEF | PMC | Retainable Evaluator Execution Framework | Jul 2022 |
| 74. Apache River | PMC | Jini service oriented architecture | Feb 2022 |
| 75. Apache Sentry | PMC | Fine grained authorization to data and metadata in Apache Hadoop | Dec 2020 |
| 76. Apache Shale | PMC | Web application framework, fundamentally based on JavaServer Faces | May 2009 |
| 77. Apache Shindig | PMC | Opensocial Reference Implementation | Oct 2015 |
| 78. Apache Sqoop | PMC | Bulk Data Transfer for Apache Hadoop and Structured Datastores | Jun 2021 |
| 79. Apache Stanbol | PMC | Reusable components for semantic content management | Apr 2020 |
| 80. Apache Stratos | PMC | Highly-extensible Platform-as-a-Service (PaaS) framework | Jan 2017 |
| 81. Apache Streams | PMC | interoperability of online profiles and activity feeds | Oct 2024 |
| 82. Apache Submarine | PMC | allowing infrastructure engineers and data scientists to build deep learning applications (TensorFlow, PyTorch, etc.) end to end on cluster management platforms (like YARN/K8s) | May 2024 |
| 83. Apache Tajo | PMC | Big data warehouse system on Apache Hadoop | Sep 2020 |
| 84. Apache Tiles | PMC | A templating framework for web application user interfaces | Dec 2018 |
| 85. Apache Trafodion | PMC | webscale SQL-on-Hadoop solution enabling transactional or operational workloads. | Apr 2021 |
| 86. Apache Tuscany | PMC | An SCA based Service Composition Framework | May 2016 |
| 87. Apache Twill | PMC | Use Apache Hadoop YARN’s distributed capabilities with a programming model that is similar to running threads | May 2020 |
| 88. Apache Usergrid | PMC | The BaaS Framework you run | Dec 2021 |
| 89. Apache VXQuery | PMC | A parallel XQuery processor | Jan 2020 |
| 90. Apache Whirr | PMC | Libraries for running Cloud Services | Mar 2015 |
| 91. Apache Wink | PMC | RESTful Web services Framework | Apr 2017 |
| 92. Apache Wookie | PMC | Widgets for Applications | Mar 2016 |
| 93. Apache WS Muse | Subproject | An implementation of the OASIS Web Services Distributed Management (WSDM) family of specifications. | Jan 2013 |
| 94. Apache Xang | Subproject | Xang was an XML Web Framework that aggregated multiple data sources, made that data URL addressable and defined custom methods to access that data. | Dec 2009 |
| 95. Apache Xindice | PMC | Xindice was a native XML database. | Aug 2011 |
| 96. Apache XML | PMC | Diverse set of popular open source XML solutions. | Apr 2012 |