# Best Open-Source Office Suites in 2026

Source: https://listme.name/best/office-suites/open-source

Office suites differ on whether they run on your computer, in a browser or both, and on how they price business use. This ranking gives the most weight to document quality and reliability, then free use, open-source options and browser access.

## 1. LibreOffice (score 89.5)

A free, open-source desktop suite for Windows, macOS and Linux with no sign-in and Office file support. Its interface looks more dated, and it has no official cloud co-editing.

- Best for: Free offline office work on the desktop
- Free and open source | Windows, macOS, Linux | open source (MPL-2.0)
- Website: https://www.libreoffice.org/
- Page: https://listme.name/software/libreoffice

## 2. ONLYOFFICE (score 86.0)

The desktop editors are free, and the document server is open source under AGPL-3.0, so teams can run online editing on their own servers. Its interface is less familiar to Microsoft Office users.

- Best for: Self-hosted online editing with desktop editors
- Free and open source | Windows, macOS, Linux, Web | open source (AGPL-3.0)
- Website: https://www.onlyoffice.com/
- Page: https://listme.name/software/onlyoffice

## 3. Collabora Online (score 81.0)

Collabora Online is open source under MPL-2.0 and can run on your own server, which suits self-hosted editing. Its interface is less familiar than Microsoft 365 or Google Docs, and business use is a paid subscription.

- Best for: Self-hosted browser editing for organizations
- Free and open source | Web, Self-hosted, Windows, macOS, Linux, iOS, Android, ChromeOS | open source (MPL-2.0)
- Website: https://www.collaboraonline.com/
- Page: https://listme.name/software/collabora-online