Free and open-source
ONLYOFFICE provides users with open-source, completely ad-free solutions. Our source code is listed on GitHub, ensuring transparency and reliability.
Web, desktop, mobile
With ONLYOFFICE, you can work online from any browser or OS, edit docs offline with the free desktop app for Windows, Linux, and Mac OS, or free mobile apps for Android and iOS.
Seamless online collaboration
ONLYOFFICE Docs provides users with character and paragraph-level co-editing modes, version history, comments and mentions, a built-in chat, and the ability to review and track changes. You can easily share your documents with flexible permissions, including commenting, reviewing, filling forms, and custom filtering.
Security
ONLYOFFICE can be deployed on your own server which gives you full control over your data. Multiple security tools and services will protect you from any threat. Private Rooms allow you to store, edit and co-author your docs in an always-encrypted form.
Docs, sheets, slides & forms
Edit and collaborate on text documents and spreadsheets of any complexity, create stunning presentations using a vast range of editing and styling tools. Create professional-looking forms and templates from scratch or any existing DOCX file, let other users fill them out, and save forms as fillable PDF files.