Welcome to the official ONLYOFFICE GitHub! ONLYOFFICE is an open-source office suite for viewing, editing, and collaborating on documents, spreadsheets, presentations, forms, and PDFs — on the web, desktop, and mobile.

🚀 Create a free cloud account · 💻 Get free desktop apps · 🖥 Download for your server

• Support for popular formats: Work with DOCX, XLSX, PPTX, PDF, ODT, ODS, ODP, TXT, RTF, HTML, EPUB, CSV, OFD, and more.
• Real-time collaboration: Co-edit with your team, follow a co-author’s cursor, comment, and track changes.
• Powerful PDF Editor: Edit text, annotate, sign, fill forms, and redact.
• AI tools: Summarize, rewrite, translate, generate formulas, build outlines, and more, using the AI model of your choice.
• Robust security: Encryption, GDPR compliance, granular access rights, and regular security updates.
• Multi-platform: Web, desktop (Windows, macOS, Linux), and mobile (iOS, Android).

👉 Explore all features

AI in ONLYOFFICE works with the context of each file, so suggestions stay relevant.

• Documents: summarize, rewrite, translate, proofread, build a table of contents, and auto-format.
• Spreadsheets: generate and explain formulas, analyze data, build forecasts and pivot tables, clean up data.
• Presentations: create outlines, write bullet points, generate speaker notes.
• PDFs: ask questions about a document, summarize it, draft emails from it, and redact sensitive data.
• Your way: quick AI actions, always-on AI assistants, and saved prompts. AI agents with MCP server support help automate workspace tasks.

Choose your model: in the cloud, enable the ONLYOFFICE AI service in a few clicks; on your own server, connect any AI model, including local ones. In the open-source versions, AI tools are installed separately.

👉 Learn about AI tools

Turn on only what you need, and use them together with the editors:

• AI agents: custom agents with a personal knowledge base and intelligent search.
• Rooms: collaboration, public, virtual data, and custom rooms.
• Files: store, search, tag, and control access to all your documents.
• Forms: collect responses and let AI analyze the results.

👉 Try Apps free in the cloud

• Docs Connect: cloud-hosted ONLYOFFICE editors you can embed into your platform, with hosting and updates handled for you. Free 30-day trial, no credit card required. 👉 Learn more
• 50+ ready-made connectors: Odoo, Confluence, Moodle, ownCloud, WordPress, and more. 👉 See all connectors
• APIs and WOPI: embed the editors into your own app, or use the Automation API to work with document content from outside the editors. 👉 Developer documentation

• Open-source transparency
• Encryption and advanced document permissions
• Regular security updates for the online, desktop, and mobile editors
• Public changelogs, so you can see exactly what was fixed in every version: Docs changelog · Desktop changelog

🔎 Found a vulnerability? Please report it responsibly to security@onlyoffice.com.

👉 Learn about security in ONLYOFFICE

• AI tools in every editor: context-aware AI for documents, spreadsheets, presentations, and PDFs, all in one AI Tools tab. AI is now also available in the desktop and mobile apps.
• Modular apps: DocSpace is now a set of apps you can mix and match: AI agents, Forms, Rooms, and Files. Using DocSpace? Your account moves to the new Apps structure automatically.
• Docs Connect: cloud-hosted editors, maintained by ONLYOFFICE, ready to embed into your platform.
• Smarter PDF Editor: automatic table recognition, metadata removal, reusable signatures.
• Faster spreadsheets and new presentation views, print options, and export to GIF or video.
• Formats: open and convert OFD files, and save spreadsheets as XLS.
• Community plugins: Antidote, Curly, Chinese Converter, and the Salesforce plugin.
• About 50 new features, 1,000+ bug fixes, and 40+ security fixes.

👉 See everything new in 10.0 · ONLYOFFICE 10.0 for developers

Version 10.0 closes more than 40 vulnerabilities in the online and desktop editors, covering document conversion, PDF handling, macros, integrations, and server configuration. Highlights:

• Safer PDFs: embedded JavaScript and malicious scripts in PDF file actions no longer run, and an authorization bypass when printing PDFs is fixed.
• Macros stay sandboxed: two sandbox bypasses are closed, including one that exposed browser cookies.
• Hardened integrations: fixes for SSRF in WOPI and AI proxy endpoints, co-editing session hijacking via WOPI, and unauthorized Document Builder access.
• Robust conversion: memory-safety fixes for DOC, XLS, PPT, XPS, EMF+, and WMF processing, plus path traversal and arbitrary file write fixes.
• XSS fixes across the editors, including the AI() function, AI assistant settings, hyperlinks in DOCX, and the Review panel.
• Docker image: updated components, including OpenSSL fixes for CVE-2022-3602 and CVE-2022-3786.

👉 Read the full security overview

1. Cloud: Docs and all Apps, ready to use right away. 👉 Create a free account
2. Self-hosted (Enterprise): Deploy Docs and Apps on your own server. 👉 Download now
3. Self-hosted (Developer): Deploy the developer builds. 👉 Download now
4. Docs Connect: Embed cloud-hosted editors into your platform. 👉 Start a free trial
5. Desktop: Work offline with FREE apps. 👉 Get desktop apps
6. Mobile: Edit on the go. 👉 Download mobile apps

Want to help make ONLYOFFICE even better? Here’s how you can contribute:

• Create your own macros, plugins, and connectors
• Submit bug reports and feature requests
• Fork the repo and share your improvements
• Translate, write documentation, or suggest ideas on the community forum

🤝 Start contributing

• 🌍 Official website: onlyoffice.com
• 📰 Blog for the latest updates and tips: ONLYOFFICE Blog
• 🧑‍💻 ONLYOFFICE API: Developer documentation
• 🛠 Ask questions and share ideas: ONLYOFFICE Community
• 🚀 Chat with fellow developers: ONLYOFFICE on Discord
• 💬 Social media: X, Fosstodon, Reddit, LinkedIn, Facebook, Instagram, YouTube, Telegram, Bsky

Ready to try ONLYOFFICE? 👉 Create your free account ✨