Microsoft 365 Alternatives

Best for: Free desktop office suite for documents, spreadsheets, and presentations.

LibreOffice is a free, open-source desktop office suite with Writer, Calc, Impress, Draw, Base, and Math. It is a strong fit for users who mainly need offline document, spreadsheet, and presentation editing without a cloud subscription or Microsoft account dependency.

Pricing: LibreOffice is free and open source; support may come from community or third-party providers.

Best for: Cross-platform office suite with document, spreadsheet, presentation, and PDF tools.

WPS Office is a cross-platform office suite for documents, spreadsheets, presentations, and PDFs. It can be useful for individuals and small teams that want familiar Office-style editing across desktop and mobile devices, with free and paid tiers depending on features.

Pricing: Free and paid plans exist; verify ads, AI features, storage, and business terms.

Best for: Free desktop office productivity suite.

Apache OpenOffice is a free, open-source desktop office suite with word processing, spreadsheets, presentations, graphics, database, and formula tools. It remains recognizable, but editors should compare its update cadence with LibreOffice before recommending it strongly.

Pricing: Free with no license fee; support is community-oriented.

Best for: Real-time online document editing and sharing.

Google Docs is a browser-based word processor for creating, sharing, commenting on, and co-editing documents in real time. It is a strong fit when the main Microsoft 365 need is collaborative writing rather than a full suite with email, storage administration, meetings, and desktop Office-style applications.

Pricing: Usable with a Google account; business controls and storage are tied to Google Workspace plans.

Best for: Office document editing with cloud and self-hosted options.

ONLYOFFICE offers document, spreadsheet, presentation, form, and PDF editing across desktop, web, mobile, cloud, and self-hosted deployments. It is useful for teams that want Microsoft Office file compatibility with more deployment flexibility than a standard SaaS-only suite.

Pricing: Free desktop/mobile options exist; cloud, enterprise, and self-hosted editions have separate terms.

Best for: Business email, office apps, files, chat, and meetings.

Zoho Workplace is a collaboration suite that combines email, calendar, files, office editors, chat, meetings, and related productivity apps. It can suit small and mid-sized teams that want a broad business suite but prefer Zoho's ecosystem instead of Microsoft 365.

Pricing: Zoho Workplace is sold through plan-based subscriptions; verify current regional pricing.

Best for: Cloud productivity suite for email, files, meetings, and documents.

G Suite is now Google Workspace. It is Google's business productivity suite for Gmail, Calendar, Drive, Docs, Sheets, Slides, Meet, and admin-managed collaboration. It is one of the closest Microsoft 365 alternatives for organizations that want cloud-first apps and real-time browser collaboration.

Pricing: Business editions are subscription-based and vary by commitment, region, and user count.

Best for: Legacy team collaboration product; status needs review.

Samepage was an all-in-one team collaboration platform, but it was acquired by Paylocity in 2020 and later integrated into Paylocity's broader product work. It should not be presented as a current standalone Microsoft 365 alternative unless an editor confirms an active, public Samepage product.

Pricing: Standalone Samepage pricing could not be verified from current official product pages.

Best for: Encrypted collaborative documents and lightweight team workspaces.

CryptPad is an end-to-end encrypted, open-source collaboration suite with pads, documents, spreadsheets, forms, kanban boards, whiteboards, and file storage. It is most relevant for privacy-focused teams that can accept a lighter ecosystem than Microsoft 365.

Pricing: Public hosted instances and support/subscription options vary; self-hosting is possible.

Best for: Hosted private email, calendar, contacts, and groupware.

Kolab Now is a hosted privacy-focused email and groupware service with mail, calendars, contacts, file storage, and collaboration features. It is closer to an Exchange or hosted groupware alternative than a full replacement for Word, Excel, PowerPoint, Teams, and SharePoint.

Pricing: Hosted account pricing should be verified directly on Kolab Now before publishing.

Best for: Self-hosted open-source groupware for technical administrators.

Kolab Community refers to the open-source Kolab groupware stack rather than a polished SaaS workplace suite. It may be relevant for technical teams that want self-hosted email, calendar, contacts, and groupware components, but current maintenance and deployment status should be reviewed carefully.

Pricing: Community software may be free, but hosting, administration, support, and maintenance costs remain.

Best for: Legacy open-source office cloud project; likely inactive.

Open365 appears to be a legacy project from the mid-2010s rather than a current, actively marketed Microsoft 365 replacement. No current official product site or reliable live service information was found, so it should be treated as inactive unless an editor can verify otherwise.

Pricing: No current official pricing or hosted product information was verified.

Best for: Email, calendar, contacts, tasks, and collaboration server.

Zimbra is an email and collaboration platform with mail, calendar, contacts, tasks, and file-sharing features. It is relevant for organizations comparing Microsoft 365 mainly for Exchange-style messaging and groupware, not for replacing the full desktop Office app suite.

Pricing: Commercial editions and hosted/reseller pricing vary; verify with Zimbra or an authorized provider.

Best for: Groupware cloud service replacing legacy Kopano Groupware.

Kopano's legacy groupware product has reached end of life, while the newer Kopano Cloud product is positioned for email, calendar, notes, tasks, contacts, and collaboration. The existing listing should be updated or reviewed so it does not send users to outdated Kopano Groupware information.

Pricing: Current Kopano Cloud pricing was not clearly verified from the public official page.

Best for: Team sites, intranets, document libraries, and file collaboration.

SharePoint is a Microsoft 365 service for team sites, intranets, document libraries, content management, and secure file collaboration. It is not an independent Microsoft 365 alternative; it is better described as a component users may compare with standalone knowledge-base, intranet, or document-management tools.

Pricing: SharePoint access is usually tied to Microsoft 365 plans; standalone availability can change.

Best for: Windows mail server for business email and messaging.

MDaemon Email Server is a Windows-based mail server for organizations that want to manage business email, webmail, calendars, contacts, and related messaging features outside Microsoft Exchange or Microsoft 365. It is most relevant for administrators comfortable running mail infrastructure.

Pricing: Paid licensing and optional add-ons should be verified with MDaemon or authorized resellers.

Best for: Self-hosted email, calendar, webmail, and groupware.

Axigen is an integrated email, calendaring, and collaboration platform built around mail-server functionality. It is a possible option for organizations comparing Microsoft 365 mainly for business email and groupware control, especially where self-hosting or service-provider deployment matters.

Pricing: Edition and license details vary by deployment; verify current Axigen plans directly.

Best for: Email, calendar, contacts, and SMB groupware server.

Kerio Connect is a messaging and collaboration server for email, calendars, contacts, and related groupware workflows. It is closer to an Exchange alternative for small and mid-sized organizations than a full Microsoft 365 replacement with office editors and broad cloud storage.

Pricing: Pricing is usually handled through GFI or resellers; verify current packages before publishing.

Best for: Browser-based collaborative editing for self-hosted document platforms.

Collabora Online is an open-source online document-editing suite based on LibreOffice technology. It is designed for browser-based collaborative editing and can be integrated into self-hosted or partner-hosted environments such as Nextcloud and other document platforms.

Pricing: Business and enterprise support are commercial; development/community editions may differ.

Best for: Self-hosted workspace for files, office, groupware, chat, and calls.

Nextcloud Hub is an open-source collaboration platform that combines file storage, sharing, office integration, groupware, chat, calls, and workflow tools. It is relevant for teams that want a self-hosted or provider-hosted workspace with stronger data-control options.

Pricing: Community software is free; enterprise support and managed hosting are separate costs.

Best for: Apple ecosystem apps for documents, spreadsheets, and presentations.

Apple's productivity apps cover word processing, spreadsheets, and presentations for Mac, iPhone, iPad, and iCloud users. They are best for Apple-centered workflows, simple collaboration, and polished personal or small-business documents rather than Microsoft 365-style admin controls.

Pricing: Core apps are included on Apple devices; premium Apple service bundles may change by region.