How to Write a Cover Letter
A cover letter is your chance to introduce yourself to a potential employer and explain why you are the best candidate for the role. Unlike a resume, which lists your qualifications in bullet points, a cover letter tells a story — it connects the dots between your experience and the specific position you are applying for.
What to Include
Every cover letter should contain a header with your contact information, the date, and the employer's details. The opening paragraph should state the position you are applying for and briefly explain your interest. The body paragraphs are where you highlight relevant achievements, skills, and experiences that match the job description. Finally, your closing paragraph should restate your enthusiasm and include a clear call to action, such as requesting an interview.
How Long Should It Be?
Keep your cover letter to one page — roughly 250 to 400 words. Hiring managers spend an average of seven seconds scanning each application, so being concise is critical. Focus on quality over quantity: three strong paragraphs are better than five mediocre ones. Use short sentences and avoid repeating information that is already on your resume.
Cover Letter vs. Resume
A resume is a structured list of your work history, education, and skills. A cover letter is a narrative that explains your motivation, addresses specific job requirements, and shows your personality. Think of the resume as the "what" and the cover letter as the "why." Submitting both gives you the strongest possible application.
Cover Letter Tips That Get Interviews
Tailor Every Letter to the Job
Generic cover letters get ignored. Read the job posting carefully and mirror the language it uses. If the listing asks for "project management experience," use that exact phrase — not a synonym. Applicant tracking systems (ATS) often scan for keyword matches, so alignment with the job description is essential for getting past the initial filter.
Quantify Your Achievements
Numbers are more convincing than vague claims. Instead of saying "I improved sales," write "I increased quarterly sales by 23% through a targeted outreach campaign." Metrics give hiring managers concrete evidence of your impact and make your application stand out from the dozens of letters that rely on generic statements.
Common Mistakes to Avoid
Do not start every sentence with "I" — vary your sentence structure. Avoid using cliches like "I am a hard worker" or "I think outside the box." Never leave the hiring manager's name as "To Whom It May Concern" if you can find the right contact on LinkedIn or the company website. Proofread your letter at least twice, or use a tool like our word counter to check length and readability. Finally, never copy and paste the same letter for every application without making changes.
Frequently Asked Questions
Do I need a cover letter in 2025?
Yes. While some companies have moved to simplified application forms, a majority of hiring managers still read cover letters when they are submitted. According to recent surveys, over 80% of recruiters say a strong cover letter can positively influence their decision, especially when two candidates have similar resumes. Including one shows initiative and genuine interest in the role.
How long should a cover letter be?
Aim for 250 to 400 words — roughly three to four short paragraphs that fit on a single page. Anything longer risks losing the reader's attention. Anything shorter may seem like you did not put in enough effort. Use our builder to draft your letter and keep an eye on the live preview to ensure it looks balanced and well-structured.
Should I use the same cover letter for every job?
No. A generic cover letter is one of the fastest ways to get rejected. Each letter should reference the specific company, the exact job title, and at least one requirement from the posting. Our template picker gives you a starting point, but you should always customize the body paragraphs to reflect the unique aspects of each position.
What is the best way to start a cover letter?
Open with a concise statement that names the position and explains why you are excited about it. Avoid overused openers like "I am writing to apply for..." — instead, lead with a relevant accomplishment or a genuine connection to the company's mission. For example: "After leading a 15-person engineering team that shipped three products in 12 months, I am eager to bring that same momentum to the Senior Developer role at Acme Inc."
Can I use a cover letter builder for free?
Absolutely. This tool is 100% free with no sign-up required. Choose a template, fill in your details, and either copy the text to your clipboard or download it as a plain-text file. Your data stays in your browser and is never sent to a server. You can revisit the page and your draft will still be here thanks to automatic local saving.