Best On-Premises Office Suites

ONLYOFFICE is an open-source project that offers cloud-based and self-hosted solutions for business of all sizes. The key product is ONLYOFFICE Docs, a secure office suite that seamlessly integrates into the most popular platforms, e.g. Odoo, Alfresco, Confluence, Pipedrive, Redmine, SuiteCRM and more. When integrated, ONLYOFFICE Docs provides the users of your business app with editors for documents, spreadsheets, presentations, forms, PDFs and diagrams. The ONLYOFFICE suite makes it possible to collaborate on office files in real time. The built-in AI assistant is compatible with ChatGPT, DeepSeek, Mistral and other AI providers to ensure a flawless editing experience. You can use Docs within ONLYOFFICE DocSpace, a room-based document collaboration platform that allows you to create dedicated spaces where you can assign access permissions and collaborate with your teammates. With DocSpace, you can store, share and co-edit office files, and even interact with third parties.

Collabora Online is excellent for enterprises that need a powerful office suite in the cloud, or on-premise, that protects their privacy and allows them to keep full control of their sensitive corporate data. Hosting and Cloud businesses who wish to include document viewing and collaborative editing functionality into their service offering can do this now with Collabora Online. View and edit text documents, spreadsheets, presentations & more. Works in any modern browser – no plugin needed. Preservation of layout and formatting of documents. Multiple deployment options. Admin console for monitoring system utilization. Key features are collaborative editing and excellent office file format support.

Truly Office Software is the #1 office productivity suite suitable for PC and mobile devices. It is a high-performing, multi-device that is considerably price friendly than alternatives. Truly Office is fully compatible and comparable to Microsoft PowerPoint, Excel and Word. Truly Office Suite is available for Windows and Linux-based PCs and Android and iOS. Truly Office is a privacy-first suite with a feature-rich comprehensive office suite with high compatibility. As a handy and professional office software, Truly Office allows you to edit files in Word, Slides, Sheet, and PDF to improve your work efficiency.

For customers who aren’t ready for the cloud, Office 2021 is the next on-premises version of Word, Excel, PowerPoint, Project, Visio, Access, and Publisher. Create presentations, data models, and reports with tools and capabilities like PowerPoint Morph, new chart types in Excel, and improved inking across apps. Manage your time, email, and contacts more easily with features like Focused Inbox, travel and delivery summary cards in Outlook, and Focus Mode in Word.

Collabora Office is the enterprise office suite of LibreOffice, the world’s most widely used Open Source office suite. We provide installation and administration utilities together with long term maintenance and contracted support to deliver successful deployments with expertise. Our take is that with Collabora you can not only achieve significant cost savings, but also get a much better product and a real product management relationship with those behind it, with a company that really cares about your business. Major new releases once a year with fresh features and improvements, tested, packaged and ready for deployment. In addition to productive work on the desktop, and of course online, the mobile apps from Collabora Office for Android and iOS enable users to edit text documents, spreadsheets, and presentations on the go. Learn more about them on the product page.

Thinkfree Office: Seamless MS Office integration, top-tier security, and swift support for a streamlined workflow with many professional features. - On-premise: Robust security and data control excellence - Co-edit: Documents, sheets, and presentations in real-time using collaborative tools - Web Browser-Based Document Editor: Integrated with existing platforms - Languages Available: The software supports 14 languages, including English and Korean - Compatibility: Compatible with Microsoft Office, word processors, spreadsheets, and presentation programs. (Supported Formats: ODF, ODT, ODP, ODS, ODG, DOCX, PPTX, XLSX, DOC, PPT, XLS)