Your private, free office suite

LibreOffice is a private, free and open source office suite – the successor project to OpenOffice.
It's compatible with Microsoft Office/365 files (.doc, .docx, .xls, .xlsx, .ppt, .pptx) and is backed by a non-profit organisation.

New: LibreOffice 25.2

Better change tracking • More versatile comments • Theme improvements

Discover it!

LibreOffice Conference 2024

October 10 – 12 in Luxembourg. We had workshops, discussions and lots of fun!

Learn more

Fantastic People

LibreOffice is about more than software. It’s about people, culture, creation, sharing and collaboration.

Join us today!

LibreOffice is Free and Open Source Software. Development is open to new talent and new ideas, and our software is tested and used daily by a large and devoted user community.

Get Involved
Understanding ODF compliance and interoperability

The Open Document Format (ODF) is an open standard format for office documents, which offers a vendor-independent, royalty-free way to encode text documents, spreadsheets, presentations, and more. However, to realise its potential, it is necessary to understand the concepts of compliance – the degree to which an implementation adheres to ODF specifications – and interoperability […]

read more »

Before LibreOffice there was OpenOffice, and before OpenOffice there was StarOffice…

LibreOffice is the successor project to OpenOffice(.org), which in turn was based on StarOffice, a proprietary office suite developed in the 1990s. Learn more about the history here! And let’s hear from Stefan Soyka, who worked on StarOffice from 1990 – 1992… When did you join Star Division, and what did you work on? I […]

read more »

Understanding ODF compliance and interoperability

The Open Document Format (ODF) is an open standard format for office documents, which offers a vendor-independent, royalty-free way to encode text documents, spreadsheets, presentations, and more. However, to realise its potential, it is necessary to understand the concepts of compliance – the degree to which an implementation adheres to ODF specifications – and interoperability […]

read more »

2025-06-19 Thursday

Up early, tech planning call in the morning, mail catch-up, admin and TORF pieces. Really exited to see the team get the first COOL 25.04 release shipped, coming to a browser near you:

Seems our videos are getting more polished over time too which is good. Ma[…]

read more »