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An Applicant Tracking System (ATS) is software used by employers and recruiters to collect, filter, and rank job applications before a human ever reads them. Most large companies and many smaller ones route every resume through an ATS before any human review takes place, which means a resume that looks polished to the eye can still be silently rejected if the system cannot parse it correctly.
An ATS resume checker analyzes your resume against the same criteria these systems evaluate: formatting compatibility, the presence of key contact information, use of standard section headings, and whether your accomplishments are described with measurable results. Catching these issues before you apply gives you a meaningful edge.
This free tool uses AI to analyze your resume in seconds — no sign-up required. It identifies structural and content gaps that commonly cause ATS systems to score a resume lower, so you know exactly what to fix before submitting your next application.
Use these ranges as a guide when interpreting your result.
These two tools solve different problems. An ATS resume checker — like this one — evaluates the structural and content quality of your resume in isolation. It answers the question: "Does my resume meet the baseline standards that ATS systems expect?" and does not require a job description to run.
A resume keyword scanner takes a different approach: it compares your resume against a specific job description to identify which required keywords and skills are present or missing. This is essential when tailoring a resume for a particular role, because ATS systems score candidates partly by how well their resume mirrors the language in the job posting.
For best results, run the ATS checker first to fix structural issues, then use the keyword scanner to align your language with each job description before submitting.