The best open source alternative to LibreOffice is ONLYOFFICE. If that doesn't suit you, our users have ranked more than 50 alternatives to LibreOffice and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to LibreOffice are CryptPad, Apache OpenOffice, Fossify Documents and Collabora Office Classic.
Open-source office suite offering document, spreadsheet, and presentation editing with co-editing modes, plugin support, integration across 30+ services, robust security, and mobile access. Available in Community, Enterprise, and Home Server editions for versatile deployment.
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CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.
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Apache OpenOffice is a leading open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, databases and more. All data is stored in an open standard format, though Open Office can also read and write files from other common...
United States
Private offline document reader and organizer supporting PDFs, DOCX, TXT, Markdown, CSV, TSV, and HTML files, enabling editing, formatting, folder browsing, sorting, favorites, and recent file tracking. No ads or tracking, with customizable themes and layouts.
India
On-premise office suite featuring advanced word processing, spreadsheets, and presentations, unmatched compatibility with 100+ formats, OOXML support, six-month updates, enterprise hardening, Visio and Publisher import, PDF export, and support for 50+ languages.
United Kingdom
Calligra Suite is an office and graphic art suite by KDE. It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.
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Euro-Office is a self-hostable document server — documents, spreadsheets, presentations, and PDFs — designed to integrate with a platform such as Nextcloud.
Experience LibreOffice in your browser with ZetaOffice, featuring device access, self-hosting or CDN deployment, API for tailored integration, and data control. Enjoy a comprehensive suite with Writer for formatting, Calc for data analysis, and Impress for presentations, optimized for performance.
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Collabora Online is a powerful LibreOffice-based online office suite with collaborative editing, which supports all major document, spreadsheet and presentation file formats and works in all modern browsers.
United Kingdom
Collabora Office brings the familiar Collabora Online experience to your computer - so you can create, edit, and present with a beautiful, modern UI. Built on LibreOffice, it delivers excellent interoperability with ODF and Microsoft Office formats (DOCX/XLSX/PPTX), and exports...
United Kingdom
NeoOffice is an office suite for Mac that is based on OpenOffice and LibreOffice. With NeoOffice, you can view, edit, and save OpenOffice documents, LibreOffice documents, and simple Microsoft Word, Excel, and PowerPoint documents.
United States
Murena Workspace is your personal email account, your agenda and contacts, your drive on the cloud and your online office suite. All combined in one single service at murena.io, simple to use. It is powered by proven open-source software like NextCloud and OnlyOffice.
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