Cutting an office-software bill is easy. Keeping everyone’s files working takes more care.
LibreOffice and ONLYOFFICE Desktop Editors offer free desktop alternatives for creating documents, spreadsheets, and presentations. For businesses considering a switch, the choice depends on file exchange, collaboration, automation, and the support required to keep employees productive.
LibreOffice deserves a place on the shortlist when open document formats and a broader desktop toolkit matter. ONLYOFFICE deserves consideration when teams want desktop editing connected to a supported collaboration platform. Neither should replace Microsoft Office across a business before its critical workflows have been checked.
How the Two Free Office Suites Compare
This comparison covers LibreOffice Community and ONLYOFFICE Desktop Editors. Hosted services, enterprise editions, and support contracts are separate purchasing decisions. It draws on official documentation rather than a hands-on compatibility benchmark.
| Business requirement | LibreOffice | ONLYOFFICE Desktop Editors |
|---|---|---|
| Desktop software cost | Free; business use permitted | Free; commercial use permitted |
| Operating systems | Windows, macOS, Linux | Windows, macOS, Linux |
| Main tools | Writer, Calc, Impress, Draw, Base, and Math | Document, spreadsheet, presentation, PDF, and form tools |
| Microsoft Office files | Opens and saves DOCX, XLSX, and PPTX | Supports editing DOCX, XLSX, and PPTX |
| Offline editing | Yes | Yes |
| Collaboration planning | Browser-based collaboration requires a separate solution | Connects to supported services for real-time collaboration |
| Microsoft VBA workflows | Some Excel VBA support; broader compatibility is limited | Cannot run VBA directly; conversion to JavaScript and testing required |
For a broader shortlist, Microsoft Word alternatives include tools with different approaches to offline editing and collaboration.
LibreOffice Offers More Than Documents and Spreadsheets
LibreOffice combines Writer, Calc, and Impress with tools for drawings, databases, and mathematical formulas. That breadth makes it worth evaluating for departments whose work extends beyond the usual document, spreadsheet, and slide deck.
Its native OpenDocument formats are another reason to consider it. Organizations standardizing on ODT documents, ODS spreadsheets, or ODP presentations can make those formats part of a broader document-management policy.
LibreOffice also supports Microsoft Office formats. Its file-format documentation lists DOCX, XLSX, and PPTX among the formats it can open and save.
That capability does not establish that every feature will survive an exchange between applications. An internal memo and a financial model with external data connections need different levels of scrutiny.
For a team producing its own documents and distributing final PDFs, LibreOffice is a credible pilot candidate. For a department continually exchanging editable files with Microsoft Office users, the pilot needs to include those external exchanges.
ONLYOFFICE Connects Desktop Editing With Team Collaboration
ONLYOFFICE Desktop Editors combines document, spreadsheet, presentation, and PDF work in one application. It can edit local files offline and connect to supported services when users need to collaborate.
That connection is an important part of the buying decision. Installing the free desktop application does not, by itself, provide a complete shared workspace with hosting, administration, and support.
ONLYOFFICE supports connections to its own platforms, Nextcloud, and ownCloud. For collaborative editing through Nextcloud or ownCloud, ONLYOFFICE Docs and the appropriate integration app must also be installed and configured. Businesses should check those requirements, permissions, and support arrangements before estimating costs.
The company promotes Microsoft Office compatibility, but its claims should be treated as a starting point for evaluation. They do not establish that ONLYOFFICE will preserve every business document more accurately than LibreOffice.
For teams exchanging DOCX, XLSX, and PPTX files, both belong in a compatibility pilot. Familiarity with the interface matters, but the deciding factor should be whether employees can complete their actual work.
Excel Macros Could Complicate Your Switch
A spreadsheet that opens without an error may still require checks of formulas, charts, linked data, and automated tasks. Teams exploring free Excel alternatives should begin with the workbooks that would cause the most disruption if they failed.
Automation needs a separate review.
LibreOffice’s Microsoft Office compatibility guidance says the suites generally cannot run the same macro code, with some exceptions. LibreOffice can run some Excel VBA scripts when the relevant support is enabled, but that does not make every macro portable.
ONLYOFFICE cannot run VBA macros directly. It uses JavaScript and documents a VBA conversion process. Converted macros need review and testing against the original workflow.
If a monthly report depends on an Excel macro, assign someone to validate that workflow before removing Excel. A hybrid deployment may be more practical than rewriting every dependency at once.
Calculate the Costs Beyond Software Licenses
Both products allow businesses to use their desktop applications without a software license fee. The migration budget still needs to account for deployment, training, document repair, support, and any collaboration infrastructure.
The Document Foundation says LibreOffice Community does not include technical support from the foundation. Organizations needing a dedicated support contract should investigate professional providers.
For ONLYOFFICE, separate the free desktop application from any hosted or server-based collaboration product being considered. Check the relevant edition, licensing terms, infrastructure requirements, and support agreement before estimating savings.
Also separate replacing desktop editors from replacing Microsoft 365. A document editor does not automatically replace the email, storage, identity, or collaboration services a business may use alongside Office.
Choose by workflow before choosing a company standard
Begin with a customer-facing document, a spreadsheet used to make business decisions, and a presentation employees regularly update. Then expand the pilot to cover each department’s critical templates, integrations, and automated workflows before approving a wider rollout.
Open each in both suites, make typical edits, save it, and reopen it in Microsoft Office. Check pagination, comments, tracked changes, formulas, charts, fonts, and presentation behavior. Test collaboration separately using the platform employees would actually use.
Record the application versions and the operating system. Have the employees responsible for those files approve the results, and measure how much correction or extra work each option requires.
LibreOffice is worth piloting when a department values OpenDocument formats, local editing, and its wider set of desktop tools. ONLYOFFICE is worth piloting when local editing and connections to an existing supported collaboration platform are priorities.
The strongest business case may be selective deployment. Employees creating routine documents could use an alternative while teams with essential Office dependencies retain Microsoft’s applications. Compare the licenses actually avoided with the cost of running that mixed environment.
A successful switch leaves employees able to finish and exchange their work reliably. Make that the approval criterion, then calculate the savings.
Read more: Beyond file compatibility and licensing costs, control over sensitive data can shape software decisions, as the Dutch tax agency’s reversal of its planned Microsoft 365 cloud migration illustrates.