Cover Letter Builder

Generate a professional, tailored cover letter in seconds. Fill in your details and get a ready-to-send letter. Everything runs 100% in your browser.

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How to Write a Cover Letter That Gets You Interviews

A strong cover letter complements your resume by telling the story behind your qualifications. While your resume lists what you've done, a cover letter explains why you're the right fit for this specific role at this specific company.

Cover Letter Structure

Common Mistakes to Avoid

Cover letters still matter, but not the way they used to

For most roles in 2026, cover letters are no longer mandatory; many ATS pipelines mark the field optional. Where they are still expected (academic, government, mission-driven organisations, senior leadership) and where you choose to send one to differentiate, a well-aimed cover letter can move you from "interesting" to "interview". The key is to treat it as the first paragraph of the conversation, not as a duplicate of your resume.

Structure that performs well

  1. Hook — one or two sentences that show you have read the job description and have a specific reason to want this role at this company.
  2. Why-you-fit paragraph — three or four sentences that pull the most relevant outcomes from your career and connect them to the job's biggest challenges. Reference one or two specific bullets from the job description.
  3. Why-this-company paragraph — demonstrate research. Mention a recent product launch, an open engineering blog post, a strategy shift, or a customer story that resonates with you.
  4. Close and call to action — one or two sentences inviting the conversation. Avoid generic phrases like "I look forward to hearing from you".

Length and format

Aim for a single page, three to four short paragraphs, and around 250–350 words. Use the same typography family as your resume so the documents look like they belong to the same applicant. Address the letter to a named person whenever you can find one (LinkedIn search for "head of [team] [company]" usually works); a generic "Dear Hiring Manager" is acceptable but weaker.

What to leave out

How the builder helps

The Cover Letter Builder pulls the most relevant entries from your resume, lets you paste the job description, and drafts a letter that maps your strongest outcomes to the role's key requirements. Edit the draft until it sounds like you wrote it on a Tuesday afternoon thinking specifically about this employer — that is the only kind of cover letter that actually moves the needle.

Frequently Asked Questions

3-4 paragraphs, fitting on one page (250-400 words). Hiring managers spend about 30 seconds per letter, so be concise and focused.
Yes, for most applications. A strong cover letter sets you apart — especially for competitive roles. It lets you explain career gaps, transitions, or unique qualifications a resume can't convey.
Always, when possible. Check the job listing, company website, or LinkedIn. "Dear [Name]" is far stronger than "Dear Hiring Manager."
Yes. This tool runs entirely in your browser — no data is sent to any server. Your inputs are not stored or logged.