Open Source Office Suites
A curated collection of the best open source software suites bundling documents, spreadsheets, presentations, and related productivity applications.
See also:SpreadsheetsDocument Editors
Secure collaboration with end-to-end encryption
Stars
7,854Last commit
12 hours agoLicense
AGPL-3.0
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Open Source Alternative to:
Complete office suite for documents, spreadsheets & more
Stars
6,834Last commit
29 days agoLicense
AGPL-3.0
Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.
Open Source Alternative to:
A spreadsheet engine you can embed, self-host, or run in the browser
Stars
4,109Last commit
9 hours agoLicense
Apache-2.0
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
Open Source Alternative to:
Free office suite with Microsoft compatibility
Stars
4,250Last commit
8 hours agoLicense
GPL-3.0
Complete free office suite compatible with Microsoft formats (.doc, .docx, .xls, .xlsx, .ppt, .pptx). Open source alternative with regular updates.
Open Source Alternative to:
Open-source document editing suite for secure collaboration
Stars
3,319Last commit
1 day agoLicense
Unknown
Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.
Open Source Alternative to:
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Sent