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Microsoft Office is a proprietary productivity suite including Word, Excel, and PowerPoint, available via Microsoft 365 subscriptions or one-time purchase. Full details →

Switching from Microsoft Office to an open source alternative eliminates recurring subscription costs while keeping full compatibility with .docx, .xlsx, and .pptx files. Open source office suites run on Linux as well as Windows and macOS, store no telemetry by default, and can be self-hosted for organizations that need full control over their documents. For most word processing, spreadsheet, and presentation needs, these alternatives cover the same core workflows at zero licensing cost.

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Open Source Alternatives

LibreOffice

Free and open source office suite

LibreOffice is a free, open source office suite with word processing, spreadsheet, presentation, and database tools — an alternative to MS Office.

MPL-2.0
  • Linux
  • Windows
  • macOS

ONLYOFFICE

Collaborative office suite compatible with Microsoft Office formats

ONLYOFFICE is an open source office suite with Word, Excel, PowerPoint-compatible editors, real-time co-editing, and a JS plugin system.

AGPL-3.0
  • Linux
  • Windows
  • macOS