Free ATS resume checker tailored to developer roles. Paste a job description, upload your CV, and see which requirements your CV proves, which it misses, and the formatting that breaks parsing.
The ATS is dumb on purpose: it parses your CV into plain text and scores keyword overlap with the job description. It does not read between the lines. If your skills are in a fancy box, listed as “K8s” when the JD says “Kubernetes”, or hidden behind a multi-column layout, the ATS does not see them. Most ATS don't reject you on a keyword score. Knockout questions (work permit, licence) can, and we flag those separately. The usual problem is that you never come up when the recruiter searches.
The ATS extracts raw text from your PDF. Tables, columns, text boxes, and images often break this step entirely.
It scores keyword overlap with the job description: hard skills, soft skills, titles, certifications. Synonyms count less. Exact phrasing wins.
Most ATS don't auto-reject on a score. They rank and filter by what the recruiter searches, and a CV that doesn't match sits unread.
Each requirement from the job, marked proven, partly shown or not shown in your CV, with the line that shows it.
The terms the job is written around that your CV never uses, so you know what to show, if you really have it.
Multi-column layouts, embedded images, non-standard headings, fonts that fail OCR: anything that would silently break ATS extraction.
"K8s" vs "Kubernetes", "TS" vs "TypeScript", "JS" vs "JavaScript". The ATS scores exact matches higher. We flag every mismatch.
After the ATS, a recruiter skims your CV quickly, looking for red flags. Then a hiring manager evaluates your public GitHub and seniority signals. RejectCheck checks all three layers in one pass.
An ATS checker estimates how the Applicant Tracking System recruiters use to store, search and rank applications will read your CV. It compares your CV with a job description, surfaces the missing terms, and flags formatting issues that break automated parsing.
Yes. RejectCheck gives 2 checks without an account, 3 a month with one. You upload your CV and paste the target job description, and you get a decision for this job (Fix, Build, Skip or Ready), the reasons you'd be screened out, and the missing terms.
RejectCheck goes past keyword matching. It tells you why you'd be screened out for this one job, reason by reason, and walks the job requirement by requirement. It adds a role-aware layer: a public GitHub and timeline cross-check, a radar of what the job asks against what your CV proves, hard filters like work permit, and red-flag detection (vague titles, passive voice, employment gaps).
ATS parsers extract plain text from your CV and look for keyword overlap with the job description. Multi-column layouts, text boxes, images, and creative section headings break parsing. Even strong candidates can be misread by formatting alone, so a recruiter's search never finds them.
An ATS checker only tests the automated filter layer (keyword match, parsing). A resume checker like RejectCheck also evaluates how a human recruiter and a hiring manager will read your CV: tone, seniority signals, consistency with your public GitHub, and structural red flags.
2 checks without an account, 3 a month with one. Checks without an account are deleted within 7 days. Tailored to one specific job.
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An honest read on your CV, for free. See why you'd be screened out for one job, reason by reason, in a few minutes.
Check a job for free →No credit card · 3 free checks a month with an account · built for developers