How to Use Grammarly Like a Pro (2026 Guide)

執筆者ファヒム・ジョハルダー | Last updated Jun 26, 2026

クイックスタート

This guide covers every Grammarly feature:

はじめる — アカウント作成と基本設定
文法チェッカーの使い方 — Find and fix grammar, spelling, and punctuation errors
How to Use Tone Suggestions — Adjust your voice and tone to match your intended audience
盗作チェッカーの使い方 — Compare your text against billions of pages for originality
How to Use Paraphrasing Tool — Rewrite sentences with better word choice and clarity
AIライティングツールの使い方 — Use generative AI to brainstorm and draft content
How to Use Proofreading — Catch typos and mechanics errors across all your apps

所要時間： 各作品につき5分

このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案

このガイドを信頼する理由

I started using Grammarly years ago and have tested every feature covered here. This tutorial comes from real hands-on experience — not marketing fluff or vendor screenshots.

Grammarly is one of the most popular grammar チェッカー現在利用可能なツール。

It works by pointing out errors in grammar, spelling, and tone as you type.

しかし、ほとんどのユーザーは、その機能のごく一部しか活用していない。

このガイドでは、主要な機能の使い方をすべて説明します。

スクリーンショットとプロのアドバイスを交えながら、手順を一つずつ解説します。

Grammarly Tutorial

This complete How to Use Grammarly tutorial walks you through every feature step by step, from initial setup to advanced tips that will make you a power user.

文法

Write with confidence everywhere you type. Grammarly checks grammar, spelling, tone, and clarity across your browser, desktop, and mobile device. Try the free version today.

TRY GRAMMARLY NOW →

レビュー全文を読む →

Grammarly を使い始める

いずれかの機能を使用する前に、この初回設定を完了してください。

約3分かかります。

ステップ1：アカウントを作成する

Go to Grammarly’s website and click “Sign Up.”

メールアドレス、Googleアカウント、Facebookアカウント、またはAppleアカウントで登録できます。

✓ チェックポイント: チェックしてください受信トレイ確認メールをお送りします。

Step 2: Install on Your Computer

Download the Grammarly desktop app or add the browser extension.

Grammarly supports Chrome, Firefox, Safari, and Edge browsers.

Here’s what the dashboard looks like:

✓ チェックポイント: メインダッシュボードが表示されるはずです。

ステップ3：執筆目標を設定する

Click “Goals” in the editor to set audience, formality, and tone.

This helps the tool give you feedback that fits your context.

✅ 完了: You’re ready to use any feature below.

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How to Use Grammarly Grammar Checker

文法チェッカー lets you find and fix grammar, spelling, and punctuation errors in your own writing.

Here’s how to use it step by step.

ステップ1：ドキュメントを開く

貼り付ける文章 into the Grammarly editor on your computer.

You can also create a new document from the dashboard.

Step 2: Review Underlined Errors

Grammarly automatically scans your sentences for mistakes.

Each error gets a colored underline pointing to the issue.

Here’s what this looks like:

✓ チェックポイント: You should see colored underlines under each error.

Step 3: Accept or Ignore Suggestions

Click each suggestion to correct the error 即座に.

✅ 結果: Your text is now mistake free with correct grammar and spelling.

💡 プロのヒント: Set your writing goals before editing. This tells Grammarly about your intended audience so suggestions match your context.

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How to Use Grammarly Tone Suggestions

トーンの提案 lets you adjust your 声 and tone so readers feel the confidence you intend.

Here’s how to use it step by step.

ステップ1：テキストを入力または貼り付ける

Paste your draft into the editor or type directly.

The tone 検出器 activates by default on all documents.

Step 2: Check the Tone Indicator

Look at the bottom of the editor for the tone label.

Grammarly shows how your text sounds to readers.

Here’s what this looks like:

✓ チェックポイント: You should see tone labels like “Confident” or “Friendly.”

Step 3: Apply Tone Feedback

Follow each suggestion to shift your 声 as needed.

✅ 結果: Your writing now matches the tone your intended audience expects.

💡 プロのヒント: Watch for few instances where your tone shifts mid-paragraph. Grammarly flags these so you can keep a consistent voice throughout your article.

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How to Use Grammarly Plagiarism Checker

盗作チェッカー lets you compare your text against billions of web pages to protect your original text.

Here’s how to use it step by step.

Step 1: Open the Plagiarism Feature

Click the plagiarism icon on the right sidebar.

Note that this feature requires a paid Pro subscription.

ステップ2：スキャンを実行する

Grammarly checks your text against billions of online sources.

Wait a few seconds for the scan to finish.

Here’s what this looks like:

✓ チェックポイント: You should see a percentage score and any matched sources.

ステップ3：一致した情報源を確認する

Decide which flagged passages to rewrite in your own words.

✅ 結果: Your document is now verified as original with no unintended matches.

💡 プロのヒント: Run the plagiarism scan before publishing any article. This is especially helpful for writers working with research sources.

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How to Use Grammarly Paraphrasing Tool

言い換えツール lets you rewrite sentences with better word choice while keeping the original meaning.

Here’s how to use it step by step.

Step 1: Select the Text to Rewrite

Highlight the sentences you want to paraphrase.

You can select a single sentence or a full paragraph.

Step 2: Click Paraphrase

Grammarly generates alternative versions of your text.

Each option keeps the meaning but improves the structure.

Here’s what this looks like:

✓ チェックポイント: You should see multiple rewrite options below your selection.

Step 3: Choose Your Preferred Version

Pick the version that fits your writing style best.

✅ 結果: Your sentences now read clearly with improved word choice and structure.

💡 プロのヒント: Use paraphrasing when Grammarly flags readability issues. It can break long sentences into shorter ones that readers prefer.

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How to Use Grammarly AI Writing Tools

AIライティングツール lets you use generative AI to ブレインストーミング, draft, and rewrite content inside the editor.

Here’s how to use it step by step.

ステップ1：AIアシスタントを開く

Click the generative AI icon in the Grammarly editor.

You can also highlight text and select “Improve with AI.”

ステップ2：プロンプトを入力してください

Describe what you want Grammarly’s AI to create or fix.

For example, ask it to shorten a paragraph or change the tone.

Here’s what this looks like:

✓ チェックポイント: You should see a generated draft below your prompt.

Step 3: Review and Accept Output

Read the AI-generated text before inserting it.

✅ 結果: You now have AI-assisted text ready to edit and publish.

💡 プロのヒント: Always review AI output with your own judgment. Generative AI is helpful but a human editor still catches context that machines miss.

Grammarlyを無料でお試しください

How to Use Grammarly Proofreading

Proofreading lets you catch typos, spelling errors, and punctuation mistakes across all your apps.

Here’s how to use it step by step.

Step 1: Install Grammarly Everywhere

Add the browser extension or desktop app to your computer.

Grammarly also works on Facebook, email, and other apps.

Step 2: Write as You Normally Would

Grammarly runs automatically in the background as you type.

Red underlines appear under typos and mechanics errors.

Here’s what this looks like:

✓ チェックポイント: You should see real-time underlines as you type in any app.

Step 3: Fix Errors with One Click

Click each underline to accept the correct spelling or punctuation.

✅ 結果: Your writing is now free of typos and punctuation errors everywhere.

💡 プロのヒント: Don’t worry about errors while drafting your first version. Wait until you finish, then let Grammarly act as your proofreader before you publish.

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Grammarly Pro Tips and Shortcuts

After testing Grammarly for years, here are my best tips.

キーボードショートカット

アクション	ショートカット
提案を受け入れる	タブまたはエンター
提案を却下する	ESC
次の提案	下向き矢印
Open Grammarly sidebar	Click the Grammarly icon

ほとんどの人が見逃す隠れた機能

Weekly Writing Reports: Grammarly sends weekly feedback on your overall score, mistakes, and vocabulary usage so you can learn from patterns
Personal Dictionary: Add words Grammarly doesn’t recognize to stop false flags across all your documents
Style Guide (Pro): Set team-wide rules so every 作家 follows the same mechanics and tone by default

Grammarlyを無料でお試しください

Grammarly Common Mistakes to Avoid

Mistake #1: Accepting Every Suggestion Blindly

❌ 間違い: Clicking “Accept All” without reading each suggestion.

✅ 右: Review every suggestion individually. Decide what fits your own writing style and ignore the rest.

Mistake #2: Editing While Still Drafting

❌ 間違い: Stopping to fix every underline before finishing the first draft.

✅ 右: Write your full draft first. Then use Grammarly to fix errors and polish the text in one pass.

Mistake #3: Skipping Document Goals Setup

❌ 間違い: Using the default settings without telling Grammarly your intended audience.

✅ 右: Set your writing goals for audience, formality, and tone before editing. This gives you better advice.

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Grammarly Troubleshooting

Problem: Grammarly Not Showing in Browser

原因： The extension is disabled or conflicts with another add-on.

修理： Check your browser extensions page. Enable Grammarly and disable any conflicting grammar tools.

Problem: Suggestions Not Loading

原因： Slow internet connection or a temporary server issue.

修理： Refresh the page and wait a moment. If the issue continues, clear your browser cache and try again.

Problem: Grammarly Not Working in Microsoft Office

原因： The Grammarly add-in is not installed or needs an update.

修理： Open Microsoft Office, go to Add-ins, and install or update the Grammarly plugin. Then restart the app.

📌 注記： If none of these fix your issue, contact Grammarly support.

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Grammarlyとは何ですか？

文法 is a writing tool that checks grammar, spelling, tone, and clarity across your browser, computer, and mobile device.

Think of it like a spelling and grammar 教師 that follows you everywhere you write.

こちらの簡単な概要をご覧ください。

Grammarly Review: Is it worth it, and what you NEED to know!

主な機能は以下のとおりです。

文法チェッカー: Flags grammar, spelling, and punctuation errors as you type
Tone Suggestions: Detects your tone and suggests adjustments for your readers
盗作チェッカー: Scans your text against billions of pages for 独創
言い換えツール: Rewrites sentences to improve readability and word choice
AIライティングツール： Uses generative AI to help you create and rewrite text
Proofreading: Catches typos and mechanics issues across all your apps

詳細なレビューについては、こちらをご覧ください。 Grammarly review.

Grammarlyを無料でお試しください

Grammarlyの価格

Here’s what Grammarly costs in 2026:

プラン	価格	最適な用途
無料	$0 USD	Anyone testing basic grammar and spelling checks
プロ	$12 USD	Writers who need advanced feedback and clarity suggestions
企業	営業担当者へのお問い合わせ	Teams needing admin controls and style guides

無料トライアル: Yes — the free version includes basic grammar and spelling checks with no time limit.

返金保証: Yes — you can cancel within 7 days for a refund.

💰 最もお得な価格: Pro — at $12 USD it unlocks tone, clarity, readability, and plagiarism checks that the free plan does not include.

Grammarlyを無料でお試しください

Grammarly vs Alternatives

How does Grammarly compare? Here’s the competitive landscape:

道具	最適な用途	価格	評価
文法	All-around grammar and tone	月額0～12ドル	⭐ 4.6
クイルボット	予算の言い換え	$0–$4.17/mo	⭐ 4.2
ジェニー	Academic research writing	月額0～12ドル	⭐ 4.0
フレーズ	SEO コンテンツライティング	$49–$299/mo	⭐ 4.3
ペーパーパル	Journal manuscript editing	月額0～19ドル	⭐ 4.1
サイスペース	科学論文分析	月額0～70ドル	⭐ 4.2
ライトソニック	Marketing copy generation	$39–$399/mo	⭐ 3.5
サイダー	Browser sidebar AI	$4.20–$16.70/mo	⭐ 4.0

おすすめ商品：

総合ベスト： Grammarly — deepest grammar, tone, and clarity coverage
ベスト予算： Quillbot — strong free tier for paraphrasing and grammar
初心者におすすめ： Jenni — simple interface built for students
SEOライターに最適： Frase — combines research and writing in one tool

🎯 Grammarly Alternatives

Looking for Grammarly alternatives? Here are the top options:

🚀 ジェニー： AI research writing アシスタント that drafts and cites academic papers quickly.
💰 ペーパーパル: Academic editing tool that polishes manuscripts before journal submission.
🎨 よむ: AI writing assistant designed for students writing essays and theses.
⚡ ライトソニック: AIコンテンツジェネレータ for marketing copy, blog posts, and ad text.
🔒 フレーズ: SEO content tool that helps you research, outline, and write articles.
🧠 共著者: AI co-writing assistant that helps brainstorm and draft content faster.
👶 引き出す: AI research assistant that finds and summarizes academic papers.
🏢 サイスペース: Research platform with AI that explains and summarizes scientific papers.
🔧 引用: Citation analysis tool that shows how papers have been cited in context.
🌟 クイルボット: Paraphrasing and grammar tool with a generous free tier for students.
⭐ ペーパーガイド: AI-powered research assistant that helps with paper discovery and writing.
🔥 Sider: AI browser sidebar that summarizes, translates, and explains web content.

全リストについては、こちらをご覧ください。 Grammarlyの代替品ガイド。

⚔️ Grammarly Compared

Here’s how Grammarly stacks up against each competitor:

Grammarly vs Jenni: Jenni focuses on academic research writing, while Grammarly covers all writing types with deeper grammar checks.
Grammarly vs Paperpal: Paperpal targets journal submissions specifically. Grammarly works across every platform and document type.
Grammarly vs Yomu: Yomu is purpose-built for students. Grammarly fits students and professionals with broader feature coverage.
Grammarly vs Writesonic: Writesonic generates content from scratch. Grammarly edits and improves your own writing instead.
Grammarly vs Frase: Frase centers on SEO research and outlines. Grammarly focuses on grammar, tone, and readability across all text.
Grammarly vs CoWriter: CoWriter assists with content drafting. Grammarly excels at editing, grammar correction, and tone detection.
Grammarly vs Elicit: Elicit focuses on literature review. Grammarly handles the actual writing, editing, and proofreading.
Grammarly vs SciSpace: SciSpace is built for reading research papers. Grammarly is built for writing and editing all document types.
Grammarly vs scite: scite analyzes citation context in research. Grammarly provides writing improvement across grammar, tone, and clarity.
Grammarly vs. Quillbot: Quillbot offers strong paraphrasing at a lower price. Grammarly adds tone detection, style guides, and plagiarism checks.
Grammarly vs Paperguide: Paperguide blends research and writing. Grammarly provides deeper grammar, tone, and readability analysis.
Grammarly vs Sider: Sider works as a browser sidebar for summaries. Grammarly is a dedicated writing assistant with deeper editing features.