Build a letter paragraph by paragraph — structure supplied, words yours.
Say what you are applying for and give one reason to keep reading.
The usual mistake: Never open with "I am writing to apply for the position of…". The reader knows why the letter exists — you have spent your best sentence saying nothing. Open with the most relevant thing you have done.
Show you know something specific about them that a mail merge could not.
The usual mistake: One concrete, checkable detail beats a paragraph of praise: a product decision, an engineering post, a public change, something a customer would notice. If the sentence would be true of three competitors, it is not doing this job.
Prove one or two of the stated requirements with something you actually did.
The usual mistake: This is the paragraph that earns the interview. Pick the requirements the posting states most plainly, and answer each with a thing you did and what happened as a result. Do not restate your resume — expand one line of it.
Address the obvious objection before the reader raises it.
The usual mistake: Optional, and powerful when the gap is visible anyway — a career change, a missing technology, a short tenure. Naming it plainly and saying what you would do about it reads as judgement. Leave it out if there is no obvious gap.
Say what you want to happen next, once.
The usual mistake: Skip "I look forward to hearing from you at your earliest convenience" — it is the most-skipped sentence in the genre. One line proposing the next step is enough, and a specific question shows you engaged with the work.
Start writing
Opening is emptyFix
Say what you are applying for and give one reason to keep reading.
Why this employer is emptyFix
Show you know something specific about them that a mail merge could not.
Evidence is emptyFix
Prove one or two of the stated requirements with something you actually did.
Closing is emptyFix
Say what you want to happen next, once.
Every word in the letter is yours — this tool supplies the structure and checks what you wrote, and deliberately does not generate prose. A letter assembled from a template reads exactly like every other letter from that template, which is the thing a cover letter exists to avoid. Nothing you type is uploaded: the posting, the paragraphs and the finished letter never leave your browser.
A cover letter builder gives you the structure of a letter — what each paragraph is for and what it has to contain — and then checks what you wrote. This one deliberately does not generate the prose: a letter filled in from a template reads exactly like every other letter from that template, which is the thing a cover letter exists to avoid.
No, and that is the point. A generated letter is identical to every other letter from the same generator, and recruiters read hundreds a week — the shape is recognisable immediately. What you get here is the structure (which paragraphs, in what order, doing what job), a prompt explaining what each one has to contain, and mechanical feedback on what you actually typed.
Under 350 words. It is read in well under a minute, if at all, and the second page never is. The builder counts words per paragraph and flags the ones that have outgrown their job — the evidence paragraph earns the most space, the closing the least.
Anything except "I am writing to apply for the position of". The reader already knows the letter is an application, so that sentence spends your strongest position on nothing. Open with the most relevant thing you have done — the builder flags the stock openers specifically.
No. There is no upload endpoint on this site. The posting is analysed and the letter is assembled by JavaScript running in the page — you can disconnect from the internet after it loads and everything still works.
They matter less than they did and more than people assume, because so few are now written well. Most applications include one that is visibly generic, so a letter naming one specific, checkable thing about the employer stands out at almost no cost. Where the application makes it optional, it is a cheap way to be the exception.
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