Free and open-source
ONLYOFFICE provides users with open-source solutions. Our source code is listed on GitHub what ensures transparency and reliability: you can check it out at any time.
Web, desktop, mobile
With ONLYOFFICE, you can work online from any browser and OS, edit docs offline with the free desktop apps for Windows, Linux, and macOS, as well as use free mobile apps for Android and iOS.
Docs, sheets, slides & forms
Edit and collaborate on text documents and spreadsheets of any complexity, create stunning presentations. Build forms from scratch or any existing DOCX file, let other users fill them out, and save forms as fillable PDF files. View PDFs or convert them to DOCX for further editing.
Security
ONLYOFFICE can be deployed on your own server what gives you full control over your data. Multiple security tools and services let you protect yourself from any threats. Private Rooms allow storing, editing, and co-authoring your docs in always-encrypted form.
Seamless online collaboration
Share your documents for co-editing, commenting, reviewing, filling forms, custom filtering, etc.. ONLYOFFICE Docs provides users with character- and paragraph-level co-editing modes, review and track changes, version history, comments and mentions, built-in chat and Telegram integration, audio and video calls via Jitsi and Rainbow plugins.