What is the best collaborative office suite in 2026?

Google Workspace bundles Gmail, Calendar, Drive, Docs, Sheets, Slides and Meet on your own domain. It's the suite where co-editing takes the least effort: share a link and everyone sees each other's cursors, comments and version history. One story keeps coming up on forums: an RFP response written by three or four people at once, smooth in Docs, painful in Word.

Pricing is per user. Business Starter costs $7 a month on an annual plan, $8.40 on the flexible plan you can cancel any month. Business Standard is $14 ($16.80 flexible) and Business Plus $22 ($26.40). Google advertises a 16% saving for annual billing.

Standard is the tier that matters. Starter gives 30 GB per person, 100 video call participants and only "limited" access to Gemini, Google's AI, in Docs, Sheets and Gmail. Standard jumps to 2 TB per person, 150 participants and full Gemini. Plus brings 5 TB and 500 participants. All three Business plans cap out at 300 users.

The catch is Excel. Converting a workbook to Sheets can break formulas and strips VBA macros, which you'd have to rewrite in Apps Script. Admins on r/SmallMSP describe the classic arc: Workspace works great early on, then the company grows and someone needs full Excel, Outlook or Teams.

Tip: you don't have to convert. Keep macro-heavy files and anything you send back to clients in .xlsx or .docx, and only convert what lives internally.

Microsoft 365 gives you Word, Excel, PowerPoint, Outlook, Teams, OneDrive and SharePoint. Its edge is depth: no browser spreadsheet does everything desktop Excel does, and your clients will keep sending .docx and .xlsx files no matter what you pick. Here you work in the native format, with no conversion.

Watch the tier. Business Basic ($7 per user per month on an annual plan) only includes the web and mobile apps: no Excel installed on the laptop. You need Business Standard ($14 annual, $16.80 month to month) for the desktop apps. Microsoft raised Basic (from $6) and Standard (from $12.50) in 2026; Premium stayed at $22. Like Google, the Business plans stop at 300 users.

Co-authoring works well on one condition: modern files (.docx, .xlsx, .pptx) saved in OneDrive or SharePoint. It's blocked when a file uses the old .doc or .xls format, is "Marked as Final", password-protected, encrypted or under certain sensitivity labels. That's the usual reason behind "file locked for editing by another user".

The catch is cost and sprawl. Teams, SharePoint and OneDrive overlap, and a small team gets lost fast without someone keeping things tidy. One small UK business reported the opposite on cost though: moving from Google to Microsoft took its monthly bill from £200 to £120. It's a single case, but it's a reminder to price your own seat count.

Tip: if your team already lives in Slack or Google Meet, look at the plan without Teams ($10.79 instead of $14). And before blaming a bug when two people can't edit together, open the file in Word for the web: that's the check Microsoft itself recommends.

Zoho Workplace combines Zoho Mail, WorkDrive for files, and Writer, Sheet and Show: its answers to Word, Excel and PowerPoint. It's the cheapest suite here: Standard is $3 per user per month on an annual plan, Professional $6. Paying yearly saves about 20%.

Users mostly praise the value and a spreadsheet that handles complex data better than they expected. The complaints are consistent too: formulas and options aren't where Microsoft users expect them, so there's a learning curve, formatting sometimes gets lost when pasting into Writer, and many ask for a desktop app for Sheet.

The catch is shared storage. WorkDrive space is per team, not per person. On Standard, a team of 3 to 10 users gets 100 GB in total, plus 10 GB for each extra user. On Professional, 1 TB per team plus 100 GB per extra user. Mailboxes get 30 GB each on Standard, 100 GB on Professional.

Tip: Mail Free (up to 5 users, 5 GB) is tempting, but it has no file storage and no IMAP or POP access. To work on documents together, you need at least Standard.

ONLYOFFICE is known for editors that look and behave very much like Word, Excel and PowerPoint, with strong Microsoft file compatibility. DocSpace is its cloud version, organized in "rooms": one room per client or project, with the right permissions for each guest. On Reddit, people leaving Google say Docs and Sheets were the hardest thing to replace, and that ONLYOFFICE is the closest they've found.

The pricing model is unlike any other suite here: you pay for admins, not users. Startup is free for 3 admins, 12 rooms and 2 GB. Business costs $20 per admin per month, with unlimited users and guests, 250 GB per admin, single sign-on, backups and an audit log.

The catch: DocSpace isn't a full suite. There's no email and no calendar, so it sits next to your mail provider or replaces just the documents part. The self-hosted route on Nextcloud needs an admin: on the forums, Nextcloud updates sometimes require an ONLYOFFICE version the Docker image doesn't have yet, and co-editing breaks until it catches up.

Tip: do the math by admins. For a three-partner firm that co-writes with 40 clients, DocSpace Business is $60 a month, where a per-seat suite would charge for guests or limit them.

Proton, best known for encrypted email, has folded its tools into Proton Workspace, which replaces the old Business Suite. Workspace Standard includes Mail, Calendar, Drive, Docs, Sheets, Meet, a VPN and a password manager, with 1 TB of encrypted storage per user. Everything is end-to-end encrypted: neither Proton nor anyone else can read your documents.

Standard costs $12.99 per user per month on an annual plan, $14.99 monthly. Premium is $19.99 ($24.99 monthly) with 3 TB per user and Lumo, Proton's AI assistant. If you only need files and documents, Drive Professional at $7.99 already includes Docs and Sheets.

The catch: it's still incomplete for classic office work. There's no PowerPoint equivalent for presentations, and offline editing is limited. Encryption has a practical cost too: fewer integrations, since outside tools can't read what's encrypted.

Tip: start with Drive Professional for the people who handle sensitive files, and keep your current presentation tool. Move to Workspace once email needs to follow.

kSuite is made by Infomaniak, a Swiss company that hosts everything in Switzerland. It includes email, kDrive for files, kChat for team chat, kMeet for video calls and online document editing. If a client asks where your data lives, the answer is one vendor, one country, outside US jurisdiction.

Prices are in Swiss francs, before tax, per user per month. Standard is CHF 1.76 with 2 addresses per user and 50 GB of kDrive. Business is CHF 7.34 with 5 addresses and 3 TB. Enterprise is CHF 13.83 with 10 addresses, 6 TB and your own branding. Like Google and Microsoft, it caps at 300 users.

It ranks last here despite a strong score because it's built for the European market: billing in francs, a smaller app ecosystem than Google or Microsoft, and editors that don't go as far as Excel for heavy workbooks. For a team that writes, shares and chats, that's rarely a problem.

Tip: the 50% discount on Business and Enterprise with an annual plan only applies in year one. Budget the full year-two price (CHF 7.34 instead of CHF 3.67 on Business) from day one.