Cover letter for an internship - free AI writer

By Alex, editor · Updated October 25, 2026 · Published by Ecomparadise, LLC

Type your facts below and get a clear, honest first draft in seconds. It uses only what you write and marks missing details for you to fill in.

Write plain facts: what happened, dates, amounts, and what you want. Use the example to see how it works. Use last 4 digits only for account numbers.

Free, no sign-up. Uses only the facts you type and marks missing details in [brackets]. Daily limit applies.

Not legal, medical or financial advice. LetterRuler drafts wording from the facts you type. It does not know the rules that apply to your situation and cannot promise any outcome. For eviction, immigration, employment, insurance, tax or court matters, have the draft reviewed by a qualified professional or a free legal aid service before you send it.

What to include

Tip: Projects count as experience. Describe one like a job: what you did and what happened.

Example of facts to type

The tool works best with plain facts like these (made-up example):

Junior studying marketing at a state university, GPA 3.5. Ran social media for a campus club and grew Instagram from 300 to 1,400 followers in a year. Applying for a summer 2027 marketing internship.

Letter outline you can copy

Prefer to write it yourself? Use this structure. Replace everything in [brackets].

[Your name, phone, email, city]

[Date]

[Hiring manager or team], [Company]

Dear [Name or Hiring Manager],

Paragraph 1: The role you are applying for and one sentence on why you are a fit.

Paragraph 2: Your most relevant experience with one concrete example or result.

Paragraph 3: Skills or credentials that match the posting, and why this employer.

Paragraph 4: Availability and a polite close inviting an interview.

Sincerely, [Name]

How to write a cover letter people finish reading

A cover letter should show, in under a page, why you fit this specific job. Hiring managers skim, so lead with the role and your strongest match, then back it up with one concrete example.

Before you send it

Related cover letters

All cover letters

Frequently asked questions

Should I include GPA?

If it is 3.0+ or the posting asks.

How formal?

Professional but natural.

Is LetterRuler free?

Yes. There is a daily limit on free letters so the service stays free for everyone.

Do you keep my letter?

No. Your text is sent to Cloudflare Workers AI to create the draft and is not stored in our database. See the privacy policy.

The Rulers

Eight free tools. No sign-up, nothing to install.

Made by the same small team. CutRuler, ScribeRuler, TextRuler and VoiceRuler run entirely in your browser, so your files stay on your device.