Grammarly
: How to use it, features, and the business problems it solves

How to Use

1. Create an account

   Create an account at the official website (grammarly.com). You can start on the free plan and sign up with an email address or a Google account.

2. Choose your environment

   Grammarly is available as a browser extension, desktop app, and mobile app, as well as integrations with Microsoft Word and Google Docs. Set it up wherever you write.

3. Type or paste your English text

   As you write or paste text, grammar, spelling, and punctuation errors — along with suggestions for improvement — are underlined in real time.

4. Review and apply suggestions

   Click on a highlighted section to see correction options and explanations, then apply the change with a single click. Tone adjustments (formal, casual, etc.) are also available.

5. Use rewrite and generative AI features

   On paid plans, you can rewrite entire sentences, generate text from prompts, and detect plagiarism or AI-generated writing to further elevate the quality of your English.

Features

• Grammar, spelling, and punctuation checking

  Detects errors in English text in real time and presents correction suggestions. This is Grammarly's core capability.

• Tone adjustment

  Visualizes the impression your writing conveys (formal, friendly, etc.) and helps you adjust the tone to match your intent.

• Sentence rewriting

  Suggests clearer, more natural rewrites for wordy or unclear sentences (paid feature).

• AI-powered text generation

  Generate English text — such as emails and drafts — on the spot by entering a prompt (free plan: ~100 prompts/month; Pro: ~2,000 prompts/month).

• Plagiarism and AI writing detection

  Checks whether text matches external sources or appears to be AI-generated (paid feature).

• Multi-platform support

  Available as a browser extension, desktop and mobile apps, and add-ins for Microsoft Office and Google Docs — works wherever you write.

• Team features

  Higher-tier plans include style guides, brand tone settings, and usage analytics to support consistent English writing across an organization.

Pricing

Pricing is approximate as of June 2026. Plans are priced in USD; annual billing significantly reduces the monthly equivalent. Plan names, prices, and AI prompt limits are subject to change — always check the official pricing page for the latest.

Pro is approximately $12/month on an annual plan and approximately $30/month on a monthly plan — a significant difference. Always check the official page for the latest pricing and prompt limits.

Pros & Cons

Pros

• Flags grammar, spelling, and punctuation errors in English text in real time
• Works wherever you write — browser extensions, apps, and Office integrations
• Tone adjustment, rewriting, and generative AI help improve both the quality and speed of your English writing
• The free plan covers basic English proofreading

Cons

• Focused on English; not a practical option for proofreading Japanese text
• Most key features — such as rewriting and plagiarism detection — are limited to paid plans
• The price gap between monthly and annual billing can make the pricing structure feel confusing

Reviews & User Feedback

• Business professionals and researchers who write in English rate it highly: "Mistakes in my English emails and papers have dropped dramatically" and "Just having the underlines there gives me confidence when writing in English."
• Common praise includes "The tone feature helps me craft the right register for each audience" and "The browser extension means I can use it everywhere."
• Common criticisms include "It doesn't work for Japanese text," "You really need to be on a paid plan to get the most out of it," and "Monthly billing is overpriced."

FAQ

Q. Is Grammarly free to use?

Yes. The free plan includes English grammar, spelling, and punctuation checking, tone detection, and generative AI (~100 prompts/month). Rewriting and plagiarism / AI writing detection require a Pro plan or above.

Q. Is Japanese supported?

Grammarly is specialized in English writing assistance and proofreading; it is not a practical option for Japanese text. While parts of the account interface have been localized, the text-checking function targets English. For Japanese text, it is common to use tools like DeepL or Shodo alongside Grammarly.

Q. What situations is it useful for?

It's valuable for checking grammar and expression in any English-writing context — emails, academic papers, blog posts, social media, and documents for international audiences.

Q. Can I use it in Microsoft Word or Google Docs?

Yes. Install the browser extension or add-in to get real-time checking in Google Docs, Microsoft Word, and various web-based services.

How Grammarly Compares to Other Services

For more detailed comparisons, see the individual pages for related services.