Best Free Microsoft Office Alternatives in 2026

You do not need a paid subscription to write documents, crunch numbers or build slides. These free Microsoft Office alternatives open and save Word, Excel and PowerPoint files — and most people never look back.

1. LibreOffice — the full desktop suite

LibreOffice is a complete, free, open-source office suite for Windows, Mac and Linux. Writer, Calc and Impress replace Word, Excel and PowerPoint, and it opens and saves .docx, .xlsx and .pptx files. The most capable free option if you want everything offline.

2. Google Workspace (Docs, Sheets, Slides) — best for collaboration

Free with any Google account and entirely in your browser. Real-time collaboration, automatic saving and easy sharing make it ideal for teams. It imports and exports Office formats too.

3. Microsoft Office on the web — the real thing, free

Microsoft offers free, browser-based versions of Word, Excel and PowerPoint with a free Microsoft account. Fewer advanced features than the paid desktop apps, but perfect compatibility for everyday work.

4. OnlyOffice — best Office look & feel

OnlyOffice has excellent .docx/.xlsx/.pptx compatibility and an interface that feels very close to Microsoft Office. Available as a free desktop app and online.

Which should you choose?

• Everything offline, most features → LibreOffice
• Team collaboration → Google Docs/Sheets/Slides
• Maximum Office compatibility → Office on the web or OnlyOffice

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