Free AI Letter Writer

Speed up the letter-writing process. Grammarly’s AI letter generator helps you create drafts for personal and business letters in two quick steps.

Add the name of the person or group you’re writing to.
Type a description of your letter. Consider including your preferred tone of voice and what you'd like to include in the header and footer.
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Download Grammarly to improve your writing and instantly generate emails, documents, and more in your preferred voice.

Work With the Industry-Leading
AI Letter Writer

Grammarly’s free AI letter generator makes it easy to create high-quality, mistake-free letters for any purpose, from business to school and beyond.

Enjoy for Free

Generate your letters for free, with no ads or hidden costs.

Easy to Use

Craft your letters with ease thanks to clear instructions and helpful prompts.

Saves Time

Create a letter in seconds instead of spending time writing from scratch.

Superior Quality

Rest assured your letter is grammatically correct, well worded, and properly formatted.

Good for All Occasions

Find the right words for business letters, personal correspondence, thank-you notes, love letters, and more.

How to Use Grammarly’s AI Letter-Writing Tool

It’s easy to use Grammarly’s online letter generator. Just follow the steps below.
Type in the name or title (or both) of the person or persons you’re writing to.
Briefly describe your situation and any specifics youd like to include.
Further adjust or edit your letter with Grammarly.

Find Inspiration in These AI Letter-Writing Examples

These letter examples were created with Grammarlys AI writing assistance. You can adjust any drafts you create to further tailor them to your needs.

Write a compelling business letter explaining how our expert branding services at Keyloxxi can help the startup Boltvern Inc. At the top of the letter, include my name (Benilda Kirkpatrick), my job title (Account Director), my work address (Keyloxxi, 123 Street, Hello, US 12345), my phone number (123-456-7891), and my email address ( Then skip a space and put today’s date (05/08/23). Underneath that, write Boltvern Inc.’s address, phone number, and email address (Boltvern Inc., 456 Avenue, Hey, US 54321, 198-765-4321, Leave a space before my name where I can add my signature.

Draft generated by Grammarly:

Benilda Kirkpatrick
Account Director

123 Street

Hello, US 12345
(123) 456-7891


Boltvern Inc.

456 Avenue

Hey, US 54321

(198) 765-4321

Dear Boltvern Inc.,

I hope this letter finds you well. I am writing to you on behalf of Keyloxxi, a branding agency that specializes in helping startups like Boltvern Inc. to establish and develop their brand identity. We understand how important it is for companies to have a strong and unique brand that sets them apart from their competitors. That’s why we offer expert branding services that can help your company achieve its full potential.

Our team of experienced branding experts can work with you to identify your brand’s unique value proposition and develop a brand strategy that aligns with your business goals. We can help you create a brand identity that is consistent across all your marketing channels and resonates with your target audience. With our help, you can build a strong and recognizable brand that will help you stand out in a crowded market.

If you are interested in learning more about our branding services at Keyloxxi, please don’t hesitate to contact us at
or (123) 456-7891. 

Thank you for considering Keyloxxi for your branding needs. We look forward to the opportunity to work with you.

Best regards,

Benilda Kirkpatrick
Write a job offer letter to Kai from me, Emery. Congratulate him and express how excited we are to have him join Keyloxxi. List his starting salary as $90K and start date as August 7.

Draft generated by Grammarly:
Dear Kai,

I am thrilled to inform you that you have been selected for the position at Keyloxxi! We are all excited to have you join our team and are looking forward to the contributions you will bring to the table.

Your starting salary will be $90K annually, and your start date will be on August 7. Please let us know if you have any questions or concerns before your start date.

We believe that you are an excellent fit for our organization, and we are confident that you will excel in your new role. We look forward to working with you and are excited to see you grow with us.

Best regards,


Who Can Use Grammarly’s Free
AI Letter Writer?

Grammarly’s letter generator has something for everyone.
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Find the right words for making a sale, helping customers, impressing your boss, and more.
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Job Seekers

Come across as professional and capable when applying for jobs and sending networking emails.
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Get properly formatted, articulate letters when applying to internships, writing to professors, and more.
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Business Owners

Sound professional when writing to customers, clients, employees, and more.
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Government Agencies

Create clear, well-worded letters for a wide variety of administrative needs.
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Legal Professionals

Get drafts of cease and desist letters, information requests, demand letters, and more.

Frequently Asked Questions

What should be included in a business letter?

A business letter should include your contact information, the date the letter was written, the recipient’s contact information, a salutation, a body, a closing salutation, and a signature (handwritten if printed or with an e-signature application if digital).

How should you structure a formal letter?

The body of a formal letter usually includes three parts:


State the purpose of your letter. Explain why you're writing it, state what you hope to achieve, and give an overview of the important information you’ll cover.

Main text:

Provide details about the important information you outlined in the introductory paragraph. This can be anywhere from one to five paragraphs.


Summarize everything you’ve discussed. Include, if relevant, a call to action or next steps.

How should you address a letter?

To address a letter, start by putting your contact information (your name, job title, company, business address, business phone number, and business email address) left-aligned at the top. Then skip a line at the end of your information and insert the date you’re writing the letter. Then skip another line before adding your recipients contact information (their name, job title, company, and company address).

How should you start a letter?

Formal letters always have a greeting at the beginning of the written content as a cue that a message is about to begin. This is known as the salutation.

Most salutations begin with “Dear,” followed by the name of the recipient. All salutations use title capitalization and end in a comma.

If you don’t know the name of the receiver, you can also use the company name, the job title, or even the department name, for example, “Dear HR Representative.” As a last resort, you can use the generic salutation “To Whom It May Concern” in any circumstance. Try to avoid “Dear Sir or Madam,” as it’s a little outdated. And to avoid misgendering, refrain from adding a title like Mr., Ms., or Mx.

How should you end a letter?

Formal letters use a standard complimentary close or sign-off, similar to the salutation, before ending with an authentic signature.

One of the most common closes is “Sincerely,” including some variations like “With sincere gratitude,” or “Sincerely yours.” Other common sign-offs include “Best” and “Yours.” Unlike salutations, closes use sentence capitalization. Always capitalize the first letter of your complimentary close, but only the first letter. And just like the salutation, always end with a comma.

Below the closing, leave four to six lines blank so that you can sign the document either after you’ve printed it or via an e-signature application. After those four lines, type your full name and your title on the line below your name.

What information should I include in my prompt?

When using Grammarly’s AI assistance to help you create a formal letter, it’s best to provide a good amount of information. The more detailed your prompts are, the clearer and more personalized your business letter will be. To start, be sure to include the following information in your prompt:

  • Specific details about why you’re writing
  • The tone you’d like your professional letter to have
  • The information you’d like to include in the header and/or footer of your letter, such as your name and address, the date, etc.

How can I create a formal letter using Grammarly's generative AI?

It's simple to craft a high-quality business letter in an instant with Grammarly's AI writing assistance. Here's how:
  • First, download Grammarly.
  • From your document, open Grammarly. This will launch our generative AI writing features.
  • Then, enter a prompt with instructions and key information that helps personalize your letter.

What is a letter writing tool and how do I use one?

Grammarly's letter-writing tool uses AI to help you create a personalized letter in seconds. You don't need to be an expert at writing letters to use it. Just outline the key details of your letter, and the AI letter writer generator will take care of the rest.

Master the Art of Letter Writing

Want to enhance your letter-writing skills? These articles provide expert tips for crafting top-notch personal and business letters. They're full of practical examples and step-by-step instructions that teach you how to get your message across in a clear, concise way.

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Names used are fictitious, and any resemblance to actual persons, events, or places is coincidental.