Choose Google Workspace if your team works in the browser and shares documents constantly. Choose Microsoft 365 if you rely on desktop Word and Excel or swap Office files with corporate clients. Both are secure and include AI assistants.
Choosing between Google Workspace and Microsoft 365 is one of the few software decisions that's hard to undo. Your email, documents, calendar, file storage and meetings all end up stored in whichever one you pick, and moving a few years of business data later is a project nobody enjoys. The good news is that both are mature, secure and used by millions of businesses, so you can't make a disastrous choice. You can make an awkward one, though. This comparison is written from each company's public information rather than a long trial, and it focuses on the questions that decide the fit for a small business.
The one question that decides most cases
Ask yourself where your team does its real work. If it's in a browser, sharing and editing documents together in real time, Google Workspace was built for that from day one. If it's in desktop apps, with long Word documents, complex Excel models and clients who send you Office files, Microsoft 365 is the more natural home. Almost every other difference flows from that starting point.
| Your team mostly | Leans towards | Why |
|---|---|---|
| Works in the browser on any device | Google Workspace | Everything runs online, with no software to install |
| Builds complex spreadsheets and long documents | Microsoft 365 | The desktop Excel and Word apps go deeper on advanced features |
| Collaborates live on the same document | Google Workspace | Real-time editing and comments are its core strength |
| Swaps files with corporate clients | Microsoft 365 | Office formats move back and forth without conversion |
| Uses Chromebooks or a mix of devices | Google Workspace | The browser-first design suits any machine |
| Runs meetings and chat in one hub | Microsoft 365 | Teams brings chat, calls, meetings and files together |
App by app
| Job | Google Workspace | Microsoft 365 |
|---|---|---|
| Gmail with your own domain | Outlook with Exchange | |
| Documents | Google Docs | Word, online and desktop |
| Spreadsheets | Google Sheets | Excel, online and desktop |
| Presentations | Google Slides | PowerPoint, online and desktop |
| File storage | Google Drive and shared drives | OneDrive and SharePoint |
| Meetings | Google Meet | Microsoft Teams |
| Team chat | Google Chat | Microsoft Teams |
| Notes | Google Keep | OneNote |
| Forms and surveys | Google Forms | Microsoft Forms |
| AI assistant | Gemini | Microsoft Copilot |
Both suites cover the same everyday jobs. The difference is how deep each app goes and where it feels most at home. If you're weighing the Microsoft apps in more detail, my guide to Microsoft 365 tools for small business productivity goes through them one by one.
Email: Gmail or Outlook?
Email is where most people feel the switch. Gmail organises mail with labels and search, and many people already use it personally, so it feels familiar. Outlook uses folders, rules and a desktop app many corporate users have used for years, with a tight link to the Teams calendar. Both let you use your own domain, set up shared mailboxes and add security controls. Ask your team which they'd rather live in all day, because they'll use it more than anything else on this page.
Files and sharing
Google Drive makes sharing simple: send a link, set view, comment or edit and you're done. Shared drives keep team files owned by the business rather than a person who might leave. Microsoft splits storage between OneDrive for personal work files and SharePoint for team sites, which gives larger teams more structure but takes more setting up. If your business has a handful of people, either works well once you agree how folders are named and who owns what.
Meetings and chat
Google Meet is simple to join from a browser link, which suits client calls where you don't know what the other person uses. Microsoft Teams is a fuller workspace with channels, chat, file tabs and meetings in one place, and many larger clients already use it. If you meet mostly with outside clients, check what they use and how easily they can join. If most of your calls are internal, think about whether you want a chat hub or just a meeting link.
AI features
Both companies are building their AI assistants into every app: Gemini in Google Workspace and Copilot in Microsoft 365. They can draft emails, summarise long threads and meetings, suggest formulas and create first drafts of documents and slides. What's included and on which plan changes often, so check the current plan pages before you assume a feature is there. Test the assistant on your own work, such as summarising a real meeting or drafting a reply to a typical client email, before it influences your choice.
Security and admin
- Both offer two-step verification, admin consoles and controls over who can share files outside the business.
- Both offer data loss prevention and device management on higher business tiers.
- Both let you set retention rules for email and files, which matters in regulated industries.
- Both publish compliance information for standards that clients and insurers ask about.
For most small businesses, the security difference matters less than whether someone switches on the protections that are already there. Make two-step verification compulsory on day one, whichever suite you choose, and give everyone a password manager; my comparison of Bitwarden and 1Password covers two popular options for teams. Both suites filter spam and phishing, but no filter catches everything, so teach your team the warning signs in my guide to business email attacks.
Notes, to-do lists and the small extras
The everyday extras often decide how a team feels about the switch. Google Keep is quick and light for notes and checklists, while OneNote is a fuller digital notebook with sections and pages that some people organise their whole working life around. Both suites include task lists linked to email and calendars, and both work with the main third-party tools for projects, signatures and accounting. If notes matter a lot to your team, compare them with dedicated apps in my roundup of note-taking apps before you assume the built-in one will do.
Questions to settle before you sign up
- Which file formats do our clients send us, and which do they expect back?
- Do we need the desktop versions of Word and Excel, or is the browser enough?
- How much storage will we need per person over the next few years?
- Who will manage accounts, and how much admin time do they have?
- Which plan includes the AI features, security tools and meeting limits we need?
- Can we migrate our current email and files easily, and who will do it?
If you're switching from one to the other
- Pick a quiet week and tell your team the date in advance.
- List every account, shared mailbox, calendar and shared folder you need to move.
- Use the migration tools each company provides for email, calendars and contacts.
- Move files in batches, starting with the folders you use every day.
- Update your domain's email settings only when the new mailboxes are ready.
- Keep the old accounts for a short overlap so nothing is lost, then close them.
A move like this is a good moment to tidy up. Delete old files nobody needs, rename folders with a clear system and set sharing rules before the clutter follows you. If file storage is the main question, my comparison of Dropbox and Google Drive covers that piece on its own.
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A fair verdict
Choose Google Workspace if your team works in the browser, shares documents constantly and values simplicity. Choose Microsoft 365 if you rely on desktop Word and Excel, exchange Office files with corporate clients or want Teams as your communication hub. Both are secure and capable, and both add AI features to every app. Run a short trial with two or three people doing their real work before you move everyone across.
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Frequently asked questions
Is Google Workspace better than Microsoft 365?
Neither is better for everyone. Google Workspace suits browser-based teams that collaborate live on documents. Microsoft 365 suits teams that rely on desktop Word and Excel or work with corporate clients who use Office files.
Can I use Microsoft Office files in Google Workspace?
Yes. Google Docs, Sheets and Slides can open and edit Office files, and you can download your work in Office formats. Complex formatting and advanced Excel features may not convert perfectly.
Does Microsoft 365 include the desktop apps?
Some Microsoft 365 business plans include the desktop versions of Word, Excel and PowerPoint, and some are web and mobile only. Check the current plan comparison.
Which is better for email, Gmail or Outlook?
Gmail suits people who like labels and search and already use it personally. Outlook suits people who prefer folders, rules and a desktop app linked to Teams.
Do both include AI assistants?
Yes. Google Workspace includes Gemini and Microsoft 365 includes Copilot. Which features you get depends on your plan, so check the current details.
How hard is it to switch between them?
Both companies provide migration tools for email, calendars and contacts. Files take longer, so plan the move in batches and keep the old accounts for a short overlap.
