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LibreOffice and Apache OpenOffice are separate, free, open-source desktop office suites with shared ancestry. Both include tools for documents, spreadsheets and presentations. For exchanging modern Microsoft Office files, LibreOffice is usually the more practical starting point because its documented support includes opening and saving Office Open XML formats. Existing OpenOffice workflows can still be useful, especially around ODF documents and familiar templates.
What they have in common
Each suite includes Writer, Calc, Impress, Draw, Base and Math. Both can work with OpenDocument files such as ODT, ODS and ODP, and export documents to PDF. Neither is simply a free copy of Microsoft 365: cloud co-authoring, add-ins and macro compatibility need separate evaluation.
The file-format difference to check first
| Task | LibreOffice | Apache OpenOffice |
|---|---|---|
| ODF documents | Native OpenDocument workflow | Native OpenDocument workflow |
| Modern Office exchange | Documented opening and saving of DOCX, XLSX and PPTX | Reading a format does not imply support for saving back to that format |
| Final, non-editable distribution | PDF export | PDF export |
| Microsoft macros | Not a universal VBA replacement | Not a universal VBA replacement |
LibreOffice’s Office-format guide explains opening and saving Microsoft files and the limits of macro compatibility. OpenOffice’s Writer page distinguishes its Word support and DOCX opening. Check the required export format in the installed suite before committing a team to it.
Keep a native ODF source and an exchange copy when practical. Test intricate tables, tracked changes, charts, formulas and font-dependent layouts in the receiving application. Export support is not a promise of perfect fidelity.
Interface, releases and system support
LibreOffice offers multiple interface layouts, including options resembling a tabbed toolbar. OpenOffice keeps a familiar menu-and-toolbar workflow. Preference is personal; a layout comparison is more useful than declaring that one interface suits everyone.
Download from the LibreOffice project or the OpenOffice project. Their release lines and supported operating systems differ and change over time. Check the current download requirements rather than relying on old Windows bitness or macOS version tables.
Performance and Java claims
Memory use depends on document size, extensions, fonts and the machine. Compare opening, editing and saving your actual files. Java can be relevant to particular database or extension features; ordinary document editing does not universally require it.
Which should you choose?
Try LibreOffice first for frequent modern Office-format exchange. Keep OpenOffice when it satisfies an established ODF/template workflow and receives the updates your environment needs. For shared browser editing or other desktop choices, our free Word alternatives covers the wider field. Our OpenOffice template guide shows how to start a reusable document without overwriting the template.