- Step1: Open ATSChecker.ai or the ATS Resume Checker tool in a web browser.
- Step2: Upload a PDF or DOCX resume, up to 10MB.
- Step3: Paste the job description for the role you want to apply to.
- Step4: Click to get your ATS score; the first scan requires no account.
- Step5: Review the compatibility score, keyword gaps, skills alignment, and formatting flags.
- Step6: Apply the recommended fixes, missing keywords, and bullet rewrites where relevant.
- Step7: Re-scan or update your resume, then apply with a stronger ATS-optimized version.