Your new laptop came with an Office trial that’s about to expire, or you just need to open a Word file and edit a spreadsheet now and then. Paying for a Microsoft 365 subscription isn’t the only option. Several free office suites open and save Word, Excel and PowerPoint files without trouble. Here are the best free alternatives to Microsoft Office, plus the compatibility quirks to watch for.
First option: Microsoft’s own free web apps
Before installing anything, know that Microsoft offers free versions of Word, Excel and PowerPoint that run in your browser. Sign in with a free Microsoft account at office.com (now part of the Microsoft 365 app) and your files save to OneDrive.
- Pros: the most compatible option for Office files, real-time collaboration.
- Cons: needs internet, and some advanced features (like certain macros and complex data tools) are only in the desktop apps.
The best free alternatives to Microsoft Office
1. LibreOffice
Best free desktop office suite.
LibreOffice is free and open source, with Writer (documents), Calc (spreadsheets), Impress (presentations), Draw and Base. It works offline and opens and saves .docx, .xlsx and .pptx files.
- Pros: completely free, no account, works offline, very capable.
- Cons: the interface looks different from Office, and complex Word layouts may shift slightly.
Tip: if you prefer a more Office-like look, go to View > User Interface and choose Tabbed.
2. Google Docs, Sheets and Slides
Best for collaboration and working from any device.
Google’s free office apps run in the browser with a Google account. They’re excellent for sharing, commenting and editing together in real time. You can upload Office files and edit them, then download as .docx, .xlsx or .pptx.
- Pros: free, great collaboration, automatic saving, offline mode available in Chrome.
- Cons: advanced Excel features and macros don’t always translate.
3. ONLYOFFICE Desktop Editors
Best for strong compatibility with Office file formats.
ONLYOFFICE uses Office formats as its native formats, so .docx and .xlsx files tend to keep their layout well. The desktop editors are free and have a tabbed interface similar to Microsoft Office.
- Pros: familiar look, good formatting fidelity, free desktop apps.
- Cons: fewer advanced extras than LibreOffice in some areas.
4. WPS Office
Best for a very Office-like experience on Windows and phones.
WPS Office closely mimics Microsoft Office’s look and supports Office formats. The free version includes ads and pushes premium features.
- Pros: familiar interface, light, available on mobile.
- Cons: ads and upgrade prompts in the free version.
5. Apple Pages, Numbers and Keynote
On Mac, iPhone and iPad, Apple’s office apps are free. They can export to Word, Excel and PowerPoint formats, and work on Windows through iCloud in a browser.
Which one should you pick?
- Need maximum compatibility with Office files: Microsoft’s free web apps or ONLYOFFICE.
- Want offline, free and no account: LibreOffice.
- Work with others in real time: Google Docs, Sheets and Slides.
- Want something that looks just like Office: WPS Office or ONLYOFFICE.
Compatibility tips to avoid surprises
- Fonts matter. If a document uses a font your computer doesn’t have, the layout can shift. Use common fonts or export to PDF before sending.
- Save in Office formats when sharing with Office users. In LibreOffice, choose .docx or .xlsx in the Save As dialog.
- Macros are tricky. Excel VBA macros won’t run in Google Sheets and may only partly work elsewhere.
- Check formulas. Most common functions work everywhere. Newer Excel functions, like XLOOKUP, are supported in Google Sheets and recent LibreOffice versions, but test important files. Our guide on VLOOKUP and XLOOKUP explains these lookups.
- Send PDFs for final versions of resumes and reports. See our tutorial on making a resume in Word; the same steps work in LibreOffice Writer.
Need to edit PDFs too? Check our list of free PDF editors.
FAQ
Is there a free version of Microsoft Office?
Yes. Microsoft offers free web versions of Word, Excel and PowerPoint with a Microsoft account. They cover most everyday tasks, though some advanced features need the paid desktop apps.
Can LibreOffice open Word and Excel files?
Yes. LibreOffice opens and saves .docx, .xlsx and .pptx files. Simple documents look the same; complex layouts may need small adjustments.
Is Google Docs good enough for school or work?
For most writing, spreadsheets and presentations, yes. It’s especially good for group projects. Heavy Excel users with macros or complex models may still prefer desktop Excel.
Which free office suite is safest?
LibreOffice, ONLYOFFICE, Google’s and Microsoft’s free apps are all reputable. Download desktop apps only from their official websites, and avoid “free Office” activators, which can carry malware.
