One day, you’ll punch in at work with your morning coffee in hand, the routine playing out exactly as it always does — except something feels off. Did you forget something? You’ll rewind the day from the moment you woke up, checking every step for the missing piece, but no. Everything’s where it should be, you did what you always do, and yet it still doesn’t feel like it’s as it should be.
The realization is sudden but subtle: you’re tired of paying for a Microsoft Office subscription. That’s what’s been itching at you all morning. The longer you sit with it, the more obvious it becomes — today, of all days, you just don’t want to use Microsoft Office anymore. You don’t need a reason, and you don’t need to justify it. You just need to move on, and luckily, there are stellar open-source alternatives waiting for you to give them a try.
Paying for these 5 popular PC apps makes no sense when the free alternatives are better
Premium apps aren’t the only way to get premium features anymore.
LibreOffice
The gold standard for the local-first worker
LibreOffice is the one you install when you just want “Office, but free, and on my machine.” Writer, Calc, and Impress cover documents, spreadsheets, and slides, and they’re good enough to write a thesis or run a small business budget. If you’ve ever had to juggle 150-page PDFs or sprawling CSVs, it has the tools to do that without constantly nudging you to sign in or sync.
Where LibreOffice feels strongest is in structured, long-form documents. You can manage auto-generated tables of contents, cross-references, and footnotes without the app crashing. As of the early 2026 releases (the 25.2 branch), performance for large files is significantly snappier. The 25.2 update also finally refined dark mode and added hanging indent commands that actually work like they should.
The pain shows up when you’re orbiting Microsoft Office all day. If you take a corporate Word template with branded cover pages and nested bullet styles and open it in LibreOffice, there’ll likely be issues with formatting. Legacy VBA macros are also hit-or-miss; the data usually loads fine, but the “one-click” magic buttons usually fail.
ONLYOFFICE
When you need to play nice with Microsoft users
If your main complaint with LibreOffice is that it looks like it’s from 2005, then ONLYOFFICE is for you. The desktop editors look like a cousin of Word and Excel — ribbon at the top, familiar icons, and tabs for multiple files. It uses DOCX, XLSX, and PPTX as its native languages, which matters if you’re sending files to Microsoft users.
Compatibility is the selling point. Custom fonts, precisely spaced tables, and colored callout boxes usually survive the trip into ONLYOFFICE with no visible change. Same deal with spreadsheets: layered conditional formatting and data validation tend to behave like they should, so the green-to-red heatmaps stay intact and the little dropdowns next to cells don’t suddenly turn into decorative suggestions.
The trade-offs are less about polish and more about depth and ecosystem. If your spreadsheets live in edge-case territory — statistical tooling, specialized workflows, heavyweight automation, deep database integration — ONLYOFFICE can feel closer to “excellent modern Excel basics” than “everything Excel can do.” If you rely on obscure add-ins, the plugin shelf is noticeably thinner.
CryptPad
What if Google Docs, but the server can’t read anything you type?
CryptPad is built around a simple but radical idea: the server should not be able to read your documents. Everything is end-to-end encrypted in the browser, and even the service provider can’t see your content.
It’s ideal for collaborative notes, planning documents, sensitive discussions, and small teams (that care deeply about privacy). You can spin up documents, spreadsheets, boards, and whiteboards quickly, invite collaborators, and work without worrying about data mining or content scanning.
The official public instance of CryptPad allows 1GB of free storage for your documents. You can purchase more storage (storage is never free), but keep in mind that you can also self-host this on your own computer. That’s kind of the point.
What CryptPad is not is a full Office replacement. Complex formatting, large structured documents, and advanced layout control are limited. You can edit long text, but you won’t get fine control over section management or auto-generated structures. It’s definitely not a publishing tool.
Apache OpenOffice
Where it all began
Apache OpenOffice is the ancestor of modern free office software. It began in 1985 as StarWriter, developed by the German company Star Division. Sun Microsystems purchased the company in 1999 and open-sourced the code in 2000 to create OpenOffice.org — the first major open-source threat to Microsoft’s dominance.
After Oracle acquired Sun in 2010, concerns over the project’s management led most developers to fork the code and create LibreOffice. Oracle eventually donated the remaining code and trademarks to the Apache Software Foundation in 2011. Since then, it has been maintained as Apache OpenOffice.
To this day, OpenOffice is highly stable and lightweight. If you’re on older hardware or if you prefer the classic pre-ribbon interface of the 2000s, it’s still a functional choice. Unfortunately, the development has stagnated compared to the competition. Updates are infrequent, it lacks modern features like display scaling, and doesn’t suppor the latest DOCX and XLSX quirks. In 2026, it’s largely considered a legacy tool — but, a very functional legacy tool.
Etherpad + Ethercalc
Minimalism for when you just need to type
Etherpad is a simple real-time text editor, and EtherCalc does the same for spreadsheets. They’re usually provided as public instances where you just click a link and start typing — no accounts required.
Etherpad and EtherCalc are lightweight, fast, and fantastic for quick collaborative notes. The downside though, is clear: they’re nowhere near full replacement for Word or Excel. They lack advanced layout, styling, and analysis tools. Keep this one in mind as a bonus on the list for quick collaboration with people outside your ecosystem.
Know your alternatives
Frankly, I still use Excel for my local spreadsheets. As I said at the start, I’m not here to denounce Microsoft or its tools. But if you’ve reached a point where you’ve decided to move on, it’s good to know that you actually have viable options. Of course, you could look elsewhere. Apple packs a beautiful office suite into its devices for free, but those apps aren’t open-source or cross-platform. Google Docs is another obvious choice, but it’s just another proprietary cloud service.
Even for a larger organization, switching is possible. Open-source enterprise options like Collabora or ONLYOFFICE DocSpace are built for this. I’d even bet that self-hosting these tools would end up cheaper than a recurring enterprise Office subscription.
This list is for when you’ve already decided that you’re done with the subscription model and you need a map to get out. You don’t have to settle for a monthly bill just to write a document. The alternatives are ready when you are.
