Yes, Microsoft Word supports Grammarly through an official desktop app and a Word add-in. Both work on Windows, Mac, and Word for the web. Grammarly says 50,000 companies and tens of millions of people use it daily, and which setup you need depends on your version of Word.
Most confusion starts because Grammarly reaches Word two different ways: a standalone desktop app and an older Microsoft Office Store listing. They behave differently once installed. Readers searching this question are often stuck on one of three problems. The add-in will not show up, Excel behaves differently than Word did, or they cannot tell which paid plan unlocks which feature. The sections below fix each one, in order.
🧩 How the Grammarly desktop app differs from the classic Office Store add-in
💻 Why Word on Windows and Word on Mac do not behave the same
🌐 Whether Grammarly works inside Word for the web without installing anything
🛠️ The exact steps to fix a missing "My Add-ins" entry in Word
📊 Which plan, Free, Premium, or Business, unlocks which writing feature
How Grammarly Connects to Microsoft Word
Grammarly reaches Word two different ways, and knowing which one you installed explains almost every "it isn't working" complaint. The current, actively maintained path is the Grammarly desktop app. You download it once for Windows or Mac, and it plugs into Word alongside more than a million other apps and websites. Once it runs, Grammarly checks your document in real time and adds a small icon to the corner of the page.
The second path is the older Microsoft Office Store listing, technically named "Grammarly for Microsoft Word." You install it directly from inside Word's Insert tab. It still works on Word 2016 or later on Mac and Windows, plus Word on the web, though Grammarly now steers new users toward the desktop app. Pricing and feature names in this article reflect Grammarly's site as of 2026; confirm the current lineup on Grammarly's upgrade page before you commit to a paid tier.
Both paths give you the same core proofreading engine: spelling, grammar, punctuation, and clarity suggestions that update as you type. The desktop app also adds AI tools directly inside Word. Highlight a sentence and ask Grammarly to rewrite it, shorten it, or change its tone. The Office Store add-in sticks to catching mistakes, which matters if your workplace blocks AI but still allows a plain proofreading add-in.
Word itself ships a built-in checker called Editor, and it helps to know what Editor skips. Word's native Editor flags obvious errors and a few style issues. It does not offer full-sentence rewrites, tone detection, or an AI assistant like Grammarly does. That gap is why so many Word users add Grammarly on top, especially for long reports, proposals, or manuscripts.
Both integrations even share a nearly identical name, which adds to the confusion. Microsoft's own listing and Grammarly's own download page both use the phrase "Grammarly for Microsoft Word." They lead to different software, though. Checking the URL before you click, store.office.com for the classic add-in and grammarly.com for the desktop app, is the fastest path to knowing which one you are about to install.
Which Situation Applies to You?
Where Grammarly fits depends on your setup. Windows, Mac, and browser-based Word each unlock a different mix of features. The four sections below cover the situations readers ask about most. They are a Windows desktop, a Mac desktop, Word for the web, and a workplace with strict IT rules.
Windows users who write in Word every day
Windows gets Grammarly's most complete Word integration, since both the desktop app and the older Office Store add-in run there without restriction. Installing the desktop app is the simplest route. Download it once, sign in, and Word gains a Grammarly icon the next time you open a document. From there you get real-time grammar checks, plus, on paid plans, full-paragraph rewrites and AI-drafted text without leaving Word.
Excel and PowerPoint benefit from that same install on Windows, since Grammarly covers Word, Outlook, PowerPoint, plus Teams and Excel, on this platform. That matters for anyone who drafts a report in Word, then copies numbers into Excel or slides into PowerPoint. The same suggestions follow the document into every app. If the add-in stops appearing after a Windows update, reinstalling the desktop app often fixes it faster than digging through Word's settings.
Mac users who split time between Word and other apps
Mac users get nearly the same experience, with one real gap: Grammarly skips Excel on Mac, though it fully supports Word, Outlook, PowerPoint, and Teams there. If your work depends on Grammarly catching typos in spreadsheets, paste that text into Word or the browser-based Grammarly Editor first. Otherwise, the Mac setup matches Windows closely. Install the desktop app once, sign in, and Grammarly starts checking your Word documents on its own.
A smaller quirk: some Mac users see the add-in load slowly after a macOS update. Grammarly can stop appearing in Word until both apps finish updating. Closing Word fully, not only the document window, and reopening it often clears the problem. If it persists, Grammarly's own support guidance recommends a clean reinstall of the desktop app rather than fiddling with the add-in alone.
Word for the web without installing anything
If you use Word on the web instead of the desktop app, Grammarly still works. It runs through a browser extension instead. Installing the Grammarly extension for Chrome, Edge, Firefox, or Safari adds the same real-time checking to Word Online and most text boxes in your browser. This route suits anyone on a shared or locked-down computer, where installing a full desktop app is not allowed.
The trade-off: browser-based checking depends on the tab staying open, so it can feel less steady than the desktop app inside full Word. Some workplaces block browser extensions for security reasons. That pushes web-only Word users toward Grammarly's own online editor instead, called the Grammarly Editor. Draft the text there first, then paste the finished version into Word for the web.
Teams working under strict IT or compliance rules
Regulated workplaces often need formal sign-off before anyone installs anything, including a writing tool. The federal government has already worked through this question. The VA authorized Grammarly for Office on Windows and Mac, but only with added limits: sensitive data still needs its own encryption layer first. That review, dated December 2023, also noted that the classic Office add-in no longer receives vendor updates.
If your employer has similar rules, expect three checks before Grammarly gets approved. These cover a data-handling review for anything with personal or private information, plus a decision on whether AI features are allowed at all. Reviewers also tend to prefer the actively updated desktop app over the discontinued Office Store listing. Ask your IT team which edition, Free, Premium, or Business, has already cleared review before you install anything yourself.
Setting Up Grammarly for Word Step by Step
Getting Grammarly running inside Word takes about five minutes. It works the same on Windows or Mac. The walkthrough below covers the desktop app, since that is the path Grammarly recommends today. If you need the older Office Store add-in, the same Insert tab steps apply, starting from a different download link.
- Download the Grammarly desktop app for Windows or Mac and run the installer.
- Sign in with your Grammarly account, or create a free one if you do not have one.
- Open Word; the Grammarly icon should appear in the bottom-right corner of the document.
- If it does not appear, open the Insert tab, click My Add-ins (called My Apps on some versions), and pick Grammarly.
- Choose Free to start, then move to Premium later if you need full-paragraph rewrites.
Most setup failures trace back to one of two causes. Either the add-in was installed but never turned on for that document, or Word was already open when the desktop app finished installing. Closing Word fully and reopening it fixes the second cause almost every time. For the first, checking the My Add-ins menu confirms whether Grammarly is enabled for that specific document, since some Word templates disable third-party add-ins by default.
One account works across every device. Signing in once on your desktop carries your settings to Grammarly's mobile keyboard and browser extension automatically. A suggestion you accept or ignore in Word will not reappear as a fresh prompt on your phone later. It also means upgrading to Premium unlocks the extra features everywhere at once, instead of a separate purchase per app.
The desktop app also needs to keep running in the background for Word to detect it. It works much like antivirus software in that sense. On Windows, look for the Grammarly icon in the system tray after installation to confirm it is active. On Mac, that same icon sits in the menu bar near the clock, and clicking it opens your account settings without leaving Word.
Where the Word Add-In Stops and the Browser Extension Takes Over
Grammarly's Word integration and its browser extension solve different problems. Treating them as interchangeable is where most confusion starts. The Word add-in, whether the desktop app or the Office Store listing, only checks documents opened directly inside Word. The browser extension instead follows you across nearly every website, including Word for the web, Gmail, and Google Docs.
That difference matters most for people who draft inside Word but send their final text somewhere else. Word's add-in cannot see an email client or a web form. Running both at once is common and safe. They do not conflict, because the desktop app manages the Word plug-in while the extension manages the browser tab.
A second, less obvious gap sits inside Word itself: Excel and PowerPoint do not get the same experience as Word, even on the same computer. On Windows, Excel gets Grammarly's checks while PowerPoint and Outlook get the full add-in. On Mac, Excel isn't covered at all. The table below maps the most common scenario to the setup that fixes it.
| Your Situation | What Solves It |
|---|---|
| Drafting a report in Word on Windows | Grammarly desktop app plus the Word add-in |
| Editing a budget in Excel on a Mac | Copy the text into Word or the Grammarly Editor first |
| Writing inside Word for the web | Grammarly browser extension |
| Answering emails in a browser-based inbox | Grammarly browser extension |
| Reviewing a Google Doc alongside a Word file | Grammarly browser extension, since it covers both |
None of these gaps are permanent. Grammarly updates its supported app list as Microsoft changes its own add-in platform. Checking Grammarly's own notes before you settle on a workflow saves you from finding a missing feature mid-project. If your team needs Excel checks on a Mac today, the browser-based Grammarly Editor is the most dependable stand-in until that gap closes.
Free Plan vs Premium vs Business Inside Word
Every Grammarly plan works inside Word, but what it catches and rewrites changes sharply between tiers. The Free plan corrects mechanical mistakes. Premium and Business add layers of AI-driven rewriting on top. The table below breaks down what changes as you move up, based on Grammarly's own plan comparison, linked here for the current details.
| Feature | Free | Premium / Business |
|---|---|---|
| Spelling, grammar, and punctuation checks | Included | Included |
| Generative AI prompts inside Word | Limited daily prompts | Thousands of monthly prompts |
| Full-paragraph rewrites | Not included | Included |
| Fluency and clarity rewrites | Basic suggestions only | Advanced fluency suggestions |
| Tone detection | Not included | Included |
| Admin controls and usage reporting | Not available | Business only |
Business plans add something individual tiers do not. They include shared billing, a shared style guide across a team's documents, and admin insight into how often writers accept suggestions. That reporting matters for compliance-heavy teams, since it gives IT a record of what left the building without exposing document content itself. None of these tiers change which Word versions Grammarly supports, because that depends on your operating system, not your plan.
Premium suits a solo writer who wants deeper suggestions inside Word without a shared workspace. It only touches that person's own documents. Business earns its cost once several employees write against the same brand voice, because the shared style guide sets one consistent rule for a whole department. Teams smaller than five people rarely need Business, since the added admin overhead can outweigh the writing benefit at that scale.
Grammarly changes what each tier includes more often than most software vendors, so treat the table above as a snapshot, not a permanent list. Checking current plan details before renewing avoids paying for a feature that moved to a different tier. If your only goal is catching typos and grammar mistakes in Word, the Free plan covers that job well. Upgrading only pays off once you want Grammarly rewriting sentences for you.
How Different Word Users Rely on Grammarly
The clearest path to connect these pieces is through three people who each hit a different wall inside Word. None of their problems are rare. Each one points to a lesson that applies well beyond their specific situation. Together they cover a long-document workflow, an outdated setup guide, and a compliance decision.
A self-published author editing a 611-page manuscript
One independent author spent two years turning a favorite piece of fan fiction into a 611-page printed book. They edited the full 465-page story inside Microsoft Word before sending it to a print-on-demand service. They ran Word's built-in tool first, and noted it worked the same as it had since 2018 and never suggested new text on its own. After that pass, they still found issues on a second read, so they added the free version of Grammarly to catch what Word's checker missed.
The lesson is less about which tool wins and more about layering them. Word's Editor caught mechanical errors fast, while Grammarly's second pass caught the details a simpler, rules-based checker missed. The author also ignored Grammarly's daily prompts to rewrite whole passages with its paid AI features. They reviewed every flagged issue by hand instead, deciding case by case, which kept the manuscript's own voice intact.
A paralegal who followed a years-old setup guide
A paralegal at a small law firm found setup steps in a blog post written when the Office Store add-in was still Grammarly's main pick. Following those steps, she installed the add-in from the Office Store. It was missing several of the AI writing features her colleague described using in Word. The guide was not wrong when it was written, but Grammarly's own guidance had since shifted toward the desktop app as the primary route inside Word.
Once she removed the Office Store version and installed the desktop app instead, the missing AI tools appeared right away. The gap was about which product she had, not a broken install. The lesson generalizes well beyond her firm: any setup guide more than a year or two old is worth checking against Grammarly's current advice first. The table below lists the symptoms that often point to an outdated install path.
| Symptom | Likely Fix |
|---|---|
| No AI rewrite or generate options in Word | Reinstall using the desktop app, not the Office Store listing |
| Add-in missing after a Word or Office update | Reinstall the desktop app rather than reactivating the old add-in |
| Instructions mention only the Office Store | Check Grammarly's current setup page before following them |
A compliance officer weighing Grammarly against federal data rules
A compliance officer at a healthcare-adjacent nonprofit had to decide whether her writing team could use Grammarly on documents that reference patients. She started by checking how other regulated companies had already answered that question. The VA had already reviewed Grammarly for Microsoft Office, approving it for Windows and Mac only with added encryption for sensitive data. That precedent gave her a starting checklist instead of a blank page.
She settled on Grammarly Business because it centralizes those settings for an entire team. That beats leaving each employee to configure Grammarly alone. Business also gave her a single record of which employees had access, instead of a scattered mix of personal accounts. The table below is the short version of the checklist she built, and it applies to any team handling similarly sensitive data, not only healthcare.
| Requirement | Why It Matters |
|---|---|
| Encryption for sensitive data | Grammarly's servers process text remotely by default |
| A decision on AI use | Some compliance rules ban AI-generated text outright |
| A single approved edition | Prevents employees from using unapproved free accounts |
| Admin insight into usage | Gives IT a record without exposing document content |
Mistakes to Avoid
These mistakes repeatedly send people back to search this exact question.
- Installing both the Office Store add-in and the desktop app at once, which can cause duplicate icons and conflicting settings.
- Assuming Grammarly checks Excel on a Mac, then missing typos in a spreadsheet that never gets flagged at all.
- Ignoring the My Add-ins menu when the icon disappears, and reinstalling Word from scratch instead.
- Accepting every AI rewrite without reading it, which can quietly change the meaning of a legal or financial sentence.
- Following a setup guide written before Grammarly moved to the desktop app, leading to a feature-incomplete install.
- Skipping the plan comparison page and assuming Premium unlocks a feature that only Business includes, then paying for the wrong tier.
- Turning on the tone detector for private internal documents without checking whether that data is allowed to leave the network.
- Forgetting that the free plan skips full-paragraph rewrites, then reporting the missing feature as a bug when it was never included.
Do's and Don'ts for Grammarly in Word
Do
- Install the desktop app first, since it is the version Grammarly updates most often.
- Check the My Add-ins menu under Insert if the icon does not appear after installing.
- Match your plan to your need: Free for basic proofreading, Premium for rewrites, Business for shared team settings.
- Confirm your workplace's data policy before turning on Grammarly's AI features on private documents.
- Keep Word's built-in Editor on alongside Grammarly, since the two catch overlapping but not identical issues.
Don't
- Don't assume Excel on a Mac gets the same Grammarly support Word does; it currently does not.
- Don't follow a setup guide more than a year old without checking it against Grammarly's current advice.
- Don't accept every AI rewrite without reading it first, especially in contracts or client-facing documents.
- Don't install both the Office Store add-in and the desktop app on one machine at once.
- Don't turn on AI features before confirming your employer allows them on work documents.
Pros and Cons of Grammarly Inside Word
Pros
- Real-time checking that works while you type, instead of a separate proofreading pass.
- Coverage across Word, Outlook, PowerPoint, and Teams from one desktop install on Windows.
- A free plan that covers basic grammar and spelling at no cost to start.
- Generative AI tools, on paid plans, that rewrite or shorten a passage without leaving Word.
- Enterprise editions with admin controls, useful for teams that need shared oversight.
Cons
- Missing Excel support on Mac, which surprises users who expect the same behavior across every Microsoft app.
- The Office Store add-in no longer gets vendor updates, so new installs should use the desktop app instead.
- Free-plan users get only limited AI prompts compared with Premium or Business.
- Reliance on an internet connection, since Grammarly's checks run through its servers rather than fully offline.
- Workplace compliance reviews can take weeks before regulated companies approve any edition for sensitive documents.
What to Do Next
- Decide whether you need the desktop app or the browser extension, based on where you write most: inside Word or across other web apps too.
- Download the correct installer for your operating system and sign in with a free Grammarly account.
- Open Word and check the Insert tab's My Add-ins menu if the icon does not appear within a minute.
- Test the free plan for a week on your normal documents before deciding whether Premium's rewrites are worth the upgrade.
- If your workplace requires IT approval, ask which edition and data-handling settings have already cleared review.
- Confirm current pricing and feature details on Grammarly's own site before renewing or upgrading any plan.
Frequently Asked Questions
Does Grammarly work in Word for Mac?
Yes. The desktop app and its Word add-in both run on Mac, covering Word, Outlook, PowerPoint, and Teams. Excel is the exception; it works on Windows but not on Mac.
Is Grammarly free to use inside Microsoft Word?
Yes. The Free plan works in Word for as long as you like, correcting spelling, grammar, and punctuation. Premium and Business add AI rewrites and team controls on top.
Does Grammarly work with Word Online, the browser version?
Yes, through a browser extension. Installing Grammarly for Chrome, Edge, Firefox, or Safari adds the same real-time checking to Word for the web.
Why doesn't Grammarly show up in my Word ribbon after I install it?
Usually a timing issue. Word was likely open during installation, or the add-in was never enabled for that document. Reopening Word and checking Insert's My Add-ins menu fixes most cases.
Is the Microsoft Office add-in version of Grammarly being discontinued?
Yes, based on Grammarly's own guidance. The classic Office Store add-in no longer receives vendor updates, so new installs should use the desktop app instead.
Does Grammarly replace Word's built-in spelling and grammar checker?
No. Word's native Editor and Grammarly can run together, and many people keep both since Grammarly catches issues Editor's simpler rules miss.
Can I use Grammarly's AI writing tools inside Word?
Yes, through the desktop app. Highlighting text and clicking Grammarly's icon lets you ask it to rewrite, shorten, or adjust the tone of a passage.
Does Grammarly work in Excel or PowerPoint too?
It depends on your operating system. PowerPoint gets full support on both Windows and Mac, while Excel only gets Grammarly's checks on Windows.
Is it safe to use Grammarly on private Word documents?
It depends on your workplace's data policy. Grammarly encrypts data in transit, but regulated companies often require a separate review before approving it for sensitive files.
What's the difference between the Grammarly Word add-in and the browser extension?
The add-in only checks documents opened inside Word. The browser extension follows you across nearly any website instead, and running both together causes no conflict.
Do I need a Microsoft 365 subscription to use Grammarly in Word?
No. Grammarly's Word integration works with any qualifying Word version, including older perpetual-license copies that meet the add-in's minimum requirement.
How do I fix a missing add-in if it never appears in my Insert tab?
Reinstall the desktop app first. That fixes most cases faster than searching through Word's settings, and if the problem continues, check whether your workplace blocks third-party add-ins outright.