CareerKit CL Tools
Does your cover letter open doors — or get skipped?
A cover letter is your first impression before the interview. Upload yours and get an instant score with specific feedback on structure, tone, and the elements that actually get read.
Why it matters
What this cover letter checker looks for
A strong cover letter has a clear structure, the right tone, and a few key elements that hiring managers specifically look for.
Opening hook
The first sentence determines if the rest gets read. We check for a strong, specific opener — not a generic "I am writing to apply for…"
Role fit & motivation
Hiring managers want to know why this role, at this company. We check for specific signals of genuine interest beyond just restating your resume.
Concrete achievements
We check whether you've backed your claims with numbers or specific examples — the strongest cover letters show, not just tell.
Professional tone
Cover letters need to sound confident and direct without being stiff or overly casual. We check for the right balance of tone throughout.
Contact & salutation
We check that your name and contact details are present, and that your letter opens with an appropriate greeting rather than "To Whom It May Concern".
Optimal length
A cover letter should be concise — typically 250–400 words. We flag if yours is too thin to be convincing or too long to hold attention.
Action verbs
Strong verbs make your letter read as confident and accomplished. We check for active language that positions you as someone who drives results.
Call to action
A clear close — expressing enthusiasm and requesting an interview — is what separates a passive letter from one that actually prompts a response.
Try it now
Upload your cover letter for a free instant check
We scan for structure, tone, length, and the specific elements that make hiring managers stop and read — rather than move on.
Drag & drop your cover letter here
or choose a file from your computer
Want a cover letter built right from the start?
CareerKit's cover letter templates are structured with the right sections in the right order — ready for you to personalise.
Browse CL TemplatesNext steps
More tools to complete your application
Your cover letter is one piece of the puzzle. Here's what else CareerKit has to strengthen your full application.
Free cover letter check
Run as many versions as you like — no account, no charge, nothing stored. Refine until it's right.
Check another version →Resume checker
While your cover letter gets you noticed, your resume needs to pass ATS. Check it's ready for the scan.
Check your resume →CareerKit templates
Cover letter and resume templates structured to match — consistent, professional, and ready to customise.
Browse templates →1:1 review session
Book a session for personal feedback on your cover letter — tone, positioning, and how it reads as a complete package.
Book a session →Common questions
Cover letter checker FAQ
Things people usually ask before running their cover letter through the checker.
Do hiring managers actually read cover letters?
It depends on the role and the company — but a strong cover letter can be the deciding factor when two candidates look equal on paper. For roles where communication matters (management, client-facing, creative), it's often the first real test of your writing and thinking. For technical roles, it's less critical — but it still shouldn't hurt you.
What does this cover letter checker look for?
It checks for eight things that define a strong cover letter: a compelling opening, contact information, role-specific motivation, concrete achievements, professional tone, appropriate length, active language, and a clear call to action. You'll get a score out of 100 and a note on each item.
How long should a cover letter be?
Aim for 250–400 words — roughly three to four short paragraphs. Long enough to make your case, short enough to be read in full. A letter under 150 words can seem thin; over 500 words risks losing the reader before your strongest points land.
Is my cover letter stored anywhere?
No. The file is read directly in your browser and never leaves your device — nothing is uploaded to a server or saved by SNDS CareerKit. Run it as many times as you like.
Should I tailor my cover letter for every job?
Yes — and this checker can help you spot if yours reads as generic. The role name, company name, and one or two specific reasons you want that particular job should always be unique to each application. The structure and tone can stay consistent; the specifics shouldn't.
Ready to put your score to work?
Refine your cover letter, check your resume, or book a 1:1 review for feedback that goes beyond what a scanner can give.