ATS Resume Checker
Score your resume against ATS systems. Find keyword gaps and formatting issues.
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An Applicant Tracking System is the database recruiters use to receive, parse, and search applications. When you upload a resume, the ATS strips it into plain text, tries to map your experience into fields (name, employer, dates, titles, skills), and indexes those for keyword search. Most rejections happen here, not at the human stage: a parser that can't read a two-column layout, a job that auto-filters on a missing required skill, or a recruiter whose keyword search never surfaces you. This checker parses your file the way Workday or Greenhouse would, flags formatting that breaks parsing, and shows which job-description keywords you're missing so you can fix them before applying.
How to use the ATS Resume Checker
- 1
Upload your resume
Drop in your .docx or PDF. We extract the raw text exactly as an ATS parser would, so you see what the machine sees, not what looks good on screen.
- 2
Paste the job description
Add the full posting, including the requirements and "nice to have" sections. The tool reads it for the hard skills, tools, and titles that drive keyword matching.
- 3
Get your score and gaps
You get a match score plus a ranked list of missing keywords and the formatting issues that block clean parsing.
- 4
Fix and re-check
Work through the flagged items, swap in the exact phrasing the posting uses, then re-run to confirm the issues cleared.
- 5
Tailor per application
Re-run for each posting. A resume that scores high for one role often misses keywords for the next, even within the same job family.
How ATS software actually parses your resume
- Multi-column layouts: parsers read left-to-right across the full width, so a two-column design interleaves your skills sidebar into the middle of your job bullets.
- Tables and text boxes: Workday and Taleo often drop or scramble content inside tables; a skills grid can vanish entirely.
- Headers and footers: many parsers ignore them, so contact info or dates placed there are lost.
- Images, icons, and graphics: text inside a logo or skill-bar graphic is invisible; the parser captures nothing.
- Non-standard section titles: "Where I've Worked" instead of "Experience" can stop the parser from recognizing your work history block.
What tanks your ATS score (and the fix)
- Missing hard keywords: the job asks for "Kubernetes" and you wrote "container orchestration." Fix: use the literal term the posting uses, then add your synonym.
- Acronym-only or spelled-out-only skills: write both, e.g. "Search Engine Optimization (SEO)," since recruiters search either form.
- Title mismatch: your "Growth Lead" won't surface for a "Marketing Manager" search. Add a recognized title in parentheses or your summary.
- Fancy fonts and graphic dates: use a standard font and plain text dates in MM/YYYY format.
- Skills buried in prose: add a plain "Skills" section listing tools as text so the parser indexes them cleanly.
Keyword matching: how to read the job description
Quick tips
- ✓Save and submit a .docx unless the posting explicitly asks for PDF; .docx parses most reliably across Taleo and older iCIMS instances.
- ✓Use standard section headings exactly: "Experience," "Education," "Skills," "Certifications." Clever labels confuse the parser.
- ✓Spell out every acronym once with the short form in parentheses, then you match both "PMP" and "Project Management Professional."
- ✓Keep dates in a consistent MM/YYYY format on the same line as the employer so the parser can tie tenure to the right job.
- ✓Drop all icons, photos, skill bars, and logos. Anything that isn't selectable text is invisible to the ATS.
- ✓Mirror the exact job title from the posting somewhere on your resume, in your summary or in parentheses after your real title.
Frequently asked questions
Does every company use an ATS?
Nearly all large employers and most mid-size ones do, including users of Workday, Greenhouse, iCIMS, and Lever. Small companies may review manually, but assuming an ATS and formatting cleanly never hurts you.
Will an ATS auto-reject my resume?
It can. Some postings set required-skill or knockout-question filters that screen applications out before any human looks. More often the ATS simply ranks you low in keyword search, so a recruiter never finds you.
PDF or Word, which is safer?
A text-based .docx is the safest default and parses most consistently. PDF is usually fine on modern systems but can fail on older Taleo or iCIMS setups, especially if it was exported from a design tool.
What is a good ATS match score?
Aim for roughly 75 percent or higher against a specific posting. Below that you are likely missing required keywords or have formatting that blocks parsing. The point is matching one job, not a generic resume.
Should I copy keywords I don't actually have?
No. Only add skills you can speak to in an interview. Mirror the posting's wording for things you genuinely have, and never use hidden white text, which gets applications thrown out.