Free AI tool
AI letter writer
Choose the type of letter, describe your situation, and get a complete, properly structured draft you can copy and send.
AI-generated draft. Read it and fill in the placeholders before sending.
Your letter
Formal letters follow conventions most of us write twice in a lifetime: how to open a resignation, how firm a complaint should be, what belongs in a recommendation. This free AI letter writer knows the structure for each letter type and fills it with your details, in the tone you pick. Where a detail is missing it leaves a clear placeholder like [Company address] instead of inventing one, so you can finish the letter with confidence.
How to use the AI letter writer
- 1
Pick the type of letter you need. Each type gets its own conventional structure and opening.
- 2
Describe your situation and the facts that must appear: names, dates, positions, what happened, what you are asking for.
- 3
Choose a tone. Formal fits most business letters; assertive suits complaints; warm suits thank-you and recommendation letters.
- 4
Click "Write my letter" and wait a few seconds for the full draft.
- 5
Replace any [placeholders], read the letter once out loud, then copy it into your email or document.
Frequently asked questions
Is the AI letter writer free to use?
Yes. There is no account, no watermark and no download gate. Generate the letter, copy it, and use it wherever you need.
What types of letters can it write?
The presets cover cover letters, resignations, complaints, recommendations, thank-you notes and apologies. Pick "Other" and name the type in the details for anything else, from a landlord notice to a scholarship request.
Will a cover letter it writes pass applicant screening?
The draft is structured the way recruiters expect and built strictly from the experience you provide, which matters more than any trick. Mirror a few key phrases from the job posting in the details box so the letter naturally matches what screeners scan for.
Can it write letters in other languages?
Yes. Write your details in the target language and the letter comes back in that language, following its conventions.
Why does the letter contain placeholders in square brackets?
The writer never invents facts. When a conventional element is missing from your details, like an address or a manager's name, it inserts a clear placeholder such as [Manager name] so you notice it and fill it in rather than sending an invented one.
Can I send the same letter to many recipients at once?
Yes, that is exactly what a mail merge does. Put your recipients in Google Sheets, keep the letter as the email body with merge tags like {{firstName}}, and Mail Merge for Gmail delivers a personalized copy to each person.
Sending letters to a whole list of people?
Mail Merge for Gmail sends personalized campaigns straight from Google Sheets, with open tracking, scheduling and follow-ups.