List of Top Free Open Source & Self Hosted Application for Office Suites

An office suite is a collection of productivity software usually containing at least a word processor, spreadsheet and a presentation program.

Collabora Online Development Edition – Collabora Online Development Edition (CODE) is a powerful LibreOffice-based online office that supports all major document, spreadsheet and presentation file formats, which you can integrate in your own infrastructure. MPL-2.0 C++
CryptPad – CryptPad is a collaboration suite that is end-to-end-encrypted and open-source. It is built to enable collaboration, synchronizing changes to documents in real time. AGPL-3.0 Nodejs
EtherCalc – Web spreadsheet. CPAL-1.0/Artistic-2.0 Nodejs
Etherpad – Etherpad is a highly customizable Open Source online editor providing collaborative editing in really real-time. Apache-2.0 Nodejs
Grist – Grist is a next-generation spreadsheet with relational structure, formula-based access control, and a portable, self-contained format. Alternative to Airtable. Apache-2.0 Nodejs/Python
Infinoted – Server for Gobby, a multi-platform collaborative text editor. MIT C++
ONLYOFFICE – Office suite that enables you to manage documents, projects, team and customer relations in one place. AGPL-3.0 Nodejs
PHPOffice – PHPOffice contains libraries which permits to write and read files from most office suites. LGPL-3.0 PHP
Rustpad – Efficient and minimal collaborative code editor, self-hosted, no database required. MIT Rust