Only Office
Open-source office suite with word processor, spreadsheets, and presentations.
Open the official app on www.onlyoffice.com
This tool is hosted by its maintainers. Click below to open www.onlyoffice.com in a new tab — it's their official demo.
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Choose how you want to get started.
Use it free
Open the official tool or demo — no account needed.
Self-host it
Run the open-source version on your own infrastructure.
What is Only Office?
OnlyOffice is an open-source web-based collaboration tool designed for editing, viewing, and managing documents, spreadsheets, presentations, and PDFs. It enables real-time co-editing, commenting, and version control, making it ideal for teams and individuals needing to work together on files. The tool is primarily used by businesses, educators, and developers to streamline document workflows, reduce reliance on proprietary software, and enhance productivity through integrated features like AI-powered assistants and form creation. It addresses challenges such as fragmented collaboration, limited document compatibility, and the need for secure, customizable solutions without vendor lock-in.
How it works
OnlyOffice provides a comprehensive office suite for web-based document editing, supporting real-time collaboration across text, spreadsheets, and presentations. Its AGPL-3.0 license allows users to self-host or integrate it into existing platforms, ensuring data control and flexibility. The tool is tailored for organizations seeking alternatives to commercial office software, offering features like fillable PDF forms, Markdown conversion, and diagram navigation. It prioritizes security and customization, catering to both small teams and enterprise environments. OnlyOffice supports co-editing with character-level precision, enabling multiple users to work on the same document simultaneously. It integrates AI assistants for tasks like text generation, translation, and grammar checks, while also allowing connections to external AI models. The platform handles PDFs through conversion, form creation, and OCR for scanned documents.
How to use it
- 1Install the server component via Docker or a package manager to host the application. 2. Access the web interface to create or upload documents, spreadsheets, or presentations. 3. Invite collaborators and set permissions for viewing, editing, or commenting. 4. Utilize AI features by connecting compatible models or using built-in tools like translation and form generation. Practical tips include leveraging the API for integration with custom applications, enabling document templates for consistency, and configuring server settings for enhanced security.
What it can do
- office document editor
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/ONLYOFFICE
- license: AGPL-3.0 — free to use
- privacy: Self-hosted — you control your data
Limitations
- The desktop version lacks modern OS support for Windows 11 and macOS Ventura
- GitHub repository experiences loading errors and session inconsistencies
- AI integration requires external model setup, which may be complex for non-technical users
- PDF OCR functionality is limited to basic text extraction without layout preservation
- Server deployment demands technical expertise for configuration and maintenance
Understanding the result
Open-source office suite with word processor, spreadsheets, and presentations.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (MIT).
- Built with
- (https://github.com/ONLYOFFICE)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
Built with https://github.com/ONLYOFFICE. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- License
- MIT
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- / — GitHub Repository
Upstream project · GitHub
- AGPL-3.0 License
Upstream project
Frequently asked
What types of files can OnlyOffice handle?
OnlyOffice supports editing and viewing documents (DOCX, DOC, ODT), spreadsheets (XLSX, XLS, ODS), presentations (PPTX, PPT, ODP), and PDFs. It can convert documents to Markdown, HTML, and export PDFs with form fields. Scanned PDFs can be processed with OCR for text extraction.
How does OnlyOffice ensure document security?
OnlyOffice provides end-to-end encryption for data in transit and at rest when hosted privately. Administrators can control access permissions, set document expiration dates, and enable audit logs. The AGPL-3.0 license allows self-hosting to maintain data sovereignty, though cloud-hosted versions may have reduced control over encryption keys.
How do I create a fillable PDF form with OnlyOffice?
Upload a document to the web interface, then use the form builder tool to add text fields, checkboxes, and dropdowns. Save the form as a PDF with fillable fields. Users can then complete the form online, and the system tracks submissions through integrated workflows.
How does OnlyOffice compare to Google Docs?
OnlyOffice offers similar real-time collaboration features but requires self-hosting for full control over data and infrastructure. Unlike Google Docs, it does not store documents in the cloud by default, making it better suited for organizations prioritizing on-premise solutions. Both support document conversion and commenting, but OnlyOffice adds PDF form creation and AI integration.
What should I do if I encounter a 'session expired' error?
Refresh the page to reset the session. If the issue persists, clear browser cache and cookies, then try a different browser. For GitHub-related errors, reload the page or check for repository updates. Ensure server-side dependencies like Node.js and Docker are up to date for hosted installations.