1 self-hosted Office 365 alternatives

Office 365 is a popular proprietary tool in the office suites space. These open-source apps let you replace Office 365 with software you host and control yourself.

Best self-hosted Office 365 alternatives

Easy

bare-metal

Reveal.js

Office Suites

HTML Presentation Framework

Replaces Google Slides, Office 365

★ 72.1k Easy setup MIT

Switching from Office 365

Moving off Office 365 means trading a managed subscription for a service you run yourself. The payoff is ownership: no per-seat pricing, no vendor lock-in, and full control of your data. Start with the option above that matches your setup-difficulty comfort level — every app links to a detailed specs page and head-to-head comparisons.