Apache OpenOffice

Apache OpenOffice is an open-source office productivity software suite developed by the Apache Software Foundation. It was created as a successor project of OpenOffice.org, itself a successor to StarOffice. It is also the designated successor of IBM Lotus Symphony. The suite includes applications for word processing (Writer), spreadsheets (Calc), presentations (Impress), vector graphics (Draw), database management (Base), and (Math). It supports the OpenDocument format and is compatible with other major formats, including those used by Microsoft Office.

Apache OpenOffice is developed for Linux, macOS and Windows, with ports to other operating systems. It is distributed under the Apache-2.0 license. The first release was version 3.4.0, on 8 May 2012. The most recent significant feature release was version 4.1, which was made available in 2014. The project has continued to release minor updates that fix bugs, update dictionaries and sometimes include feature enhancements. The most recent security release was 4.1.16 on 10 November 2025.

Difficulties maintaining a sufficient number of active developers and code contributors to keep the project viable have persisted for several years. This has led to persistent problems providing timely fixes to security vulnerabilities since 2015. In March 2026, the Apache Security Team raised OpenOffice's security risk status to "red" due to unfixed vulnerabilities over 365 days old.