How to Check Grammar With AI

Step 1: Choose the Right Grammar Checker

The right grammar checker depends on three factors: where you write, what you write, and how much you are willing to spend. Start by identifying where you do most of your writing. If you write primarily in Gmail, Google Docs, and web-based tools, you need a browser extension. If you work in Microsoft Word, you need a desktop app or a Word add-in. If you write on your phone, you need a mobile keyboard.

For most writers, Grammarly is the safest default choice. It works on every platform (browser extension, desktop app, mobile keyboard, Google Docs, Microsoft Word), catches more error types than any competitor, and its free tier is genuinely useful for basic correction. If Grammarly is too expensive and you want a paid alternative, LanguageTool Premium costs $4.99 per month and covers the essentials. If you write long documents like academic papers, reports, or fiction, ProWritingAid offers deeper analysis tools that Grammarly does not match.

If you are not sure which tool to try, start with the free tiers of Grammarly and LanguageTool. Install both browser extensions, use them for a week, and see which one's suggestions feel more helpful for your writing. You can uninstall the one you like less without having spent anything.

Step 2: Install the Browser Extension or App

Every major grammar checker offers a browser extension for Chrome, and most also support Firefox, Edge, and Safari. Installation is the same process as any browser extension: visit the Chrome Web Store (or your browser's equivalent), search for the tool's name, click "Add to Chrome," and confirm the permissions. The extension will appear as an icon in your browser toolbar.

For Grammarly, the Chrome extension takes about 15 seconds to install and works immediately in Gmail, Google Docs, LinkedIn, Twitter/X, Slack, and virtually every other text field on the web. The extension underlines errors with colored indicators (red for critical errors, blue for style suggestions) and shows correction options when you click or hover over the underline.

For desktop integration with Microsoft Word, you will need to download the standalone app. Grammarly, ProWritingAid, and LanguageTool all offer desktop apps or Word add-ins that install through a standard installer. After installation, the grammar checker appears as a sidebar or tab within Word, showing suggestions for the active document.

For mobile, Grammarly and Ginger offer custom keyboards for iOS and Android. You install the keyboard app from the App Store or Google Play, then enable it in your phone's keyboard settings. Once enabled, the grammar checker keyboard replaces your default keyboard and checks grammar as you type in any app. This is useful for catching errors in text messages, emails, and social media posts composed on your phone.

Step 3: Configure Your Writing Style Settings

Before you start checking text, configure the tool's settings to match your writing context. Every major grammar checker lets you set preferences that affect which suggestions appear and how aggressively the tool flags potential issues.

The most important setting is the writing style or audience selector. Grammarly offers options including General, Formal, Informal, Academic, and Business. ProWritingAid offers General, Academic, Business, Creative, Casual, and several others. LanguageTool offers a "picky mode" toggle that enables additional style checks. Set this to match the type of writing you do most often. If you write both academic papers and casual emails, you will need to switch the setting depending on the context, or leave it on a general setting that works for both.

Set your English dialect. American English, British English, Canadian English, and Australian English have different conventions for spelling (color vs colour, analyze vs analyse), punctuation (serial comma usage), and even some grammar rules (collective nouns as singular vs plural). Setting the correct dialect prevents the tool from flagging legitimate regional conventions as errors.

Add domain-specific words to your personal dictionary. If you work in a specialized field, you will encounter technical terms, product names, and acronyms that the grammar checker does not recognize. Adding these to your personal dictionary once prevents the tool from flagging them as misspellings in every future document. Grammarly, ProWritingAid, and LanguageTool all maintain personal dictionaries that sync across devices.

Step 4: Write Your First Draft Without Checking

This is the step most people skip, and it is the most important one for producing good writing. Write your complete first draft without stopping to review grammar suggestions. If your grammar checker is active in your writing environment, you will see underlines appearing as you type. Ignore them. Focus entirely on getting your ideas, arguments, and content onto the page.

There are two reasons for this approach. First, interrupting your writing to fix grammar errors disrupts your train of thought and slows your creative and analytical momentum. The cognitive task of composing content and the cognitive task of editing for correctness use different mental processes, and trying to do both simultaneously makes you worse at both.

Second, many "errors" in a first draft are not really errors. They are incomplete thoughts, placeholder sentences, and rough phrasing that you plan to revise anyway. Running a grammar checker on a first draft produces a flood of suggestions for text that you are going to rewrite regardless, wasting your attention on corrections that will not survive your own revision process.

Write the full draft, then set it aside for at least a few hours (overnight is better). When you return to it, read through it yourself and make your own revisions. Restructure paragraphs, sharpen arguments, cut unnecessary words, and fix any errors you notice on your own. Then, and only then, run the grammar checker as a final quality pass.

Step 5: Review and Apply Suggestions

When you activate the grammar checker on your revised draft, it will highlight errors and suggestions throughout the document. The key principle here is that you are making the decisions, not the tool. Read each suggestion, understand what the tool is flagging and why, and then accept or reject it.

Accept without hesitation: spelling corrections, clear grammatical errors (subject-verb disagreement, wrong verb form, missing articles), and punctuation fixes where the tool's suggestion is unambiguously correct. These are the corrections that justify using a grammar checker in the first place. They are errors you missed during self-editing, and accepting them improves your text with no downside.

Evaluate carefully: style suggestions like passive voice flags, sentence length recommendations, word choice alternatives, and tone adjustments. These suggestions reflect the tool's model of "good writing," which may or may not match your intent, audience, or genre. A passive voice construction might be the right choice for your sentence. A long sentence might be long for a good reason. A formal word might be more precise than the simpler alternative the tool suggests. Read the suggestion, consider it, and use your judgment.

Reject confidently: suggestions that change your intended meaning, that conflict with your domain's conventions, or that would make your writing sound generic. If a tool suggests replacing a precise technical term with a common synonym, reject it. If a tool flags a deliberate sentence fragment used for emphasis, reject it. If a tool suggests a rewrite that loses a nuance you intended, reject it. Your voice matters more than a perfect score on the grammar checker's dashboard.

Step 6: Learn From Recurring Patterns

The most valuable benefit of using a grammar checker is not the immediate corrections but the long-term improvement in your writing habits. After using a grammar checker for a few weeks, you will notice patterns in the errors it catches. Maybe you consistently use "which" where "that" is correct. Maybe you always put commas before "because" when they are not needed. Maybe you default to passive voice in your opening sentences.

These recurring patterns are your personal weak spots, and identifying them is the first step toward eliminating them. When the grammar checker flags the same type of error for the third or fourth time, take a moment to understand the rule behind the correction. Look up the grammar rule online if the tool's explanation is not clear enough. Practice writing sentences that follow the correct pattern. Over time, you will catch these errors yourself during self-editing, before the grammar checker ever sees them.

ProWritingAid tracks your recurring issues explicitly in its reports, showing which error types appear most frequently in your writing. Grammarly provides weekly writing insights via email that summarize your most common mistakes. LanguageTool does not offer personalized tracking in its free tier but provides it in the Premium plan. Any of these feedback mechanisms help accelerate the learning process.

The end goal is not to depend on a grammar checker forever, though there is nothing wrong with continuing to use one. The end goal is to write so well that the grammar checker finds less and less to flag, because you have internalized the corrections it taught you. A grammar checker that puts itself out of a job by making you a better writer is doing exactly what it should.