An ATS resume checker is a tool that simulates how an applicant tracking system reads your resume. Before a human recruiter ever sees your application, resume screening software parses your file, extracts keywords, and scores how closely your background matches the job description. Up to 75% of resumes are filtered out at this stage — usually for missing keywords or formatting issues, not for lack of qualification.
StackShift's ATS score checker runs the same kind of parsing, then compares your resume against the specific job you're targeting. The result is a transparent resume ATS analysis that shows your overall match score, missing keywords, skill gaps, and formatting risks — so you can fix the resume itself rather than guess why you're not hearing back.
Nearly every mid-size and enterprise employer now runs an applicant tracking system resume check before a human reads a single line. Workday, Taleo, Greenhouse, iCIMS, and Lever — they all rank candidates on keyword and skill overlap with the job description. If your resume doesn't speak the system's language, it never reaches the shortlist.
That's why ATS optimization isn't a nice-to-have. A strong resume sent to the wrong format gets rejected by resume screening software the same as a weak one. Running an ATS resume check before every application is the cheapest, fastest way to lift your interview rate — and it takes about two minutes per role.
Three steps to a resume that lands interviews.
Paste plain text or upload a PDF / DOCX. We parse it the way an ATS would.
Drop in the JD you're targeting. StackShift compares the two in seconds.
Get your ATS score, missing keywords, and a tailored rewrite you can ship today.
Get a 0–100 score for any resume + JD combination in under 30 seconds.
See exactly how closely your resume aligns with the role you're applying to.
We surface the exact terms recruiters and resume screening software look for.
Know which skills and certifications to add — and which are blocking your shortlist.
Catch tables, columns, and headers that confuse applicant tracking systems.
Built for the JD patterns, tech stacks, and roles you'll see across industries worldwide.
An ATS resume checker is a tool that scans your resume the same way an applicant tracking system does — parsing sections, keywords, and formatting — and reports how well it matches a specific job description. StackShift's ATS score checker shows you exactly which keywords, skills, and qualifications are missing before you apply.
We compare your resume against the job description using AI-driven resume ATS analysis. The score reflects keyword coverage, skill alignment, role-title relevance, and formatting that's friendly to resume screening software. You see a number from 0–100 plus a breakdown of every gap.
Yes. You can run ATS resume checks for free on StackShift. Create an account, paste your resume and a job description, and get an instant ATS score and fix list — no credit card required.
You can paste plain text directly or upload PDF and DOCX resumes. We parse the text the same way an applicant tracking system resume check would, so what you see in the score is what a real ATS would extract.
Add the missing keywords surfaced in your report, mirror the job title where it's honestly accurate, list quantified achievements, and keep formatting simple — single column, standard section headings, no images or text boxes. Re-run the checker until your score crosses 80.