Home | LibreOffice - Free and private office suite - Based on OpenOffice - Compatible with Microsoft

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
Community Member Monday: Ndidi Folasade Ogboi

Tell us a bit about yourself! I live in Lagos, Nigeria, and I spend my time dabbling into user experience design with research, although these days, I’m diving deeper into research. I’m a big fan of books, especially well-written fiction. Music is also a huge part of my life. Let’s just say I love anything […]

read more »

LibreOffice 25.2: The first week, in statistics

One week ago, we announced LibreOffice 25.2, our brand new major release. It’s packed with new features, and has many improvements to compatibility and performance too. So, what has happened in the week since then? Let’s check out some stats… 647,961 downloads These are just stats for our official downloads page, of course – many […]

read more »

Community Member Monday: Ndidi Folasade Ogboi

Tell us a bit about yourself! I live in Lagos, Nigeria, and I spend my time dabbling into user experience design with research, although these days, I’m diving deeper into research. I’m a big fan of books, especially well-written fiction. Music is also a huge part of my life. Let’s just say I love anything […]

read more »

Understanding the existing code to provide better patches

LibreOffice inherits a gigantic code base from its ancestors, StarOffice and OpenOffice. Here I discuss some notes for the newcomers on how to better understand the existing LibreOffice code, and improve the patches.

Studying the Existing Code

As said, LibreOffice is a huge code base, containing ~10 million lines of mostly C++ code. There are different assumptions, conventions and coding styles across ~200 modules that LibreOffice has.

Therefore, it is important to first, study […]

read more »