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 26.2

Markdown support • Connectors in Calc • Spreadsheet speedups

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

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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.

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Why ODF and not OOXML

Many interpreted the last article in this series as an attack on Microsoft for using the OOXML format against users’ interests. However, this was only one of my objectives, as I also wanted to raise users’ awareness of fake open-source software, such as OnlyOffice, which partners with Microsoft in a

read more »

Celebrating “I love Free Software day”

LibreOffice is free software – but “free” is about way more than just being zero-cost. It’s about giving users fundamental freedoms in how they run, share, study and improve their software and computers – giving control back to them. For example, the source code for LibreOffice – that is, the

read more »

Why ODF and not OOXML

Many interpreted the last article in this series as an attack on Microsoft for using the OOXML format against users’ interests. However, this was only one of my objectives, as I also wanted to raise users’ awareness of fake open-source software, such as OnlyOffice, which partners with Microsoft in a

read more »

Celebrating “I love Free Software day”

LibreOffice is free software – but “free” is about way more than just being zero-cost. It’s about giving users fundamental freedoms in how they run, share, study and improve their software and computers – giving control back to them. For example, the source code for LibreOffice – that is, the

read more »