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AI Cover Letter Builder ATS-tuned

A cover letter that reads like you wrote it.

Paste the job description, add a few highlights, and get a polished, role-specific cover letter — ready to send as a PDF. No account required.

Need a resume too?
Tailored to the JD No sign-in required Instant PDF export

Live preview

Single-page cover letter

ATS-tuned

Dear Hiring Manager,

I'm excited to apply for the Senior Product Designer role at Nova Labs. Over the last five years I've shipped onboarding flows that lifted activation by 18% and led a design system used across four product lines…

Your team's focus on evidence-driven design is exactly where I do my best work. I'd welcome the chance to talk through how I'd approach the first 90 days.

— Alex Johnson

Edit anything in the preview before downloading.

How it works

Three steps to a ready-to-send letter

Step 1

Paste the job description

We pull out the role's intent, language, and must-have skills.

Step 2

Add your highlights

Share impact, experience, and the tone that fits your voice.

Step 3

Generate & download

Review the letter, edit if needed, then export a clean PDF.

Editor
Cover letter builder

Step 1 · Tailor

Job description

Public & free

Step 2 · Fill in the details

Powered by ATS-Optimizer · No account needed.

Sign in to save your work

  • Auto-fill from your devfound.ai profile
  • Save multiple cover letters
  • Access from any device
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Preview
Edit anything before downloading.

Why this builder

Letters tuned for ATS and humans

  • Keyword alignment

    Pulls the right phrases from the JD without stuffing.

  • Structured flow

    Intro, proof, close — every letter follows a clear arc.

  • Edit anything

    Tweak the draft in-place before you download.

  • PDF in seconds

    A4 or Letter, formatted and ready to send.

Features that help your letter land

Everything you need to write a focused, role-specific cover letter in under a minute.

AI-powered drafting

Generate a tailored first draft from the JD plus your highlights.

Role-specific tone

Pick confident, warm, concise, or executive — match how you read.

Live preview

See your letter render as you edit, with serif typography that prints clean.

Multilingual

Generate in English, Spanish, Chinese, or Japanese — one click switch.

Comprehensive Toolkit

More AI tools for your
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Pair your cover letter with a tuned resume and a sharp interview prep — all powered by the same ATS-Optimizer engine.

AI Resume Builder

Build an ATS-safe resume tailored to the same job description — keep tone and keywords consistent across both documents.

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Resume Scanner

Score your resume against a job description and get actionable feedback before you apply.

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Mock Interview

Practice with AI-powered mock interviews tailored to your target role and company.

Start Practice

Frequently asked questions

Is the cover letter builder free?

Yes. You can generate and download cover letters without signing in. Creating an account lets us auto-fill your details from your devfound.ai profile and save your work across devices.

Can I edit the letter before downloading?

Absolutely. Click "Edit text" in the preview header to switch to an editable textarea, make your changes, and toggle back to the rendered view. Your edits flow straight into the PDF.

Is my data saved?

When you're signed out, nothing is stored — the letter lives only in your browser and the PDF download. Signed-in users get auto-fill from their devfound.ai profile.

What languages are supported?

English, Spanish, Chinese, and Japanese. Choose your output language inside the Tone & language section before generating.