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.

Out now: LibreOffice 25.8

Interface improvements • New spreadsheet functions • Faster file loading

Download it!

LibreOffice Conference 2025

September 4 – 6 in Budapest. Join us!

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
Do something awesome! Join the Month of LibreOffice, November 2025

Love LibreOffice? Join the project and help to make it even better – get involved in the Month of LibreOffice, November 2025! Over the next four weeks, hundreds of people around the world will collaborate to improve the software – and you can help them. There are many ways to get involved, as you’ll see […]

read more »

ODF format security: encryption, signatures and metadata management

Open Document Format (ODF) is an open standard for office documents – texts, spreadsheets, presentations and more – that is flexible and interoperable. As with any other digital format, its security is a key concern, as ODF files often contain sensitive information that, without adequate protection measures, can be exposed, tampered with or tracked. This […]

read more »

Do something awesome! Join the Month of LibreOffice, November 2025

Love LibreOffice? Join the project and help to make it even better – get involved in the Month of LibreOffice, November 2025! Over the next four weeks, hundreds of people around the world will collaborate to improve the software – and you can help them. There are many ways to get involved, as you’ll see […]

read more »

ODF format security: encryption, signatures and metadata management

Open Document Format (ODF) is an open standard for office documents – texts, spreadsheets, presentations and more – that is flexible and interoperable. As with any other digital format, its security is a key concern, as ODF files often contain sensitive information that, without adequate protection measures, can be exposed, tampered with or tracked. This […]

read more »