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Free ATS Resume Keyword Checker

Paste your resume and the job posting. See exactly which keywords you're missing — in seconds, free, with nothing uploaded.

Free forever · Runs 100% in your browser · No sign-up

🔒 Your text never leaves this page.
– keyword match rate

❌ Missing from your resume (0)

✅ Already covered (0)

What this measures: literal keyword overlap between the posting and your resume — a quick gap-finding heuristic, not a simulation of any employer's ATS. Real systems also parse formatting, section headers, and context. Add missing keywords only where they are true (skills you actually have, tools you have actually used). Never paste the job description into your resume to game the match.

Why keyword gaps kill applications

Most large employers run resumes through an applicant tracking system before a recruiter ever sees them. The ATS parses your resume into structured fields and scores how well it matches the posting — and keyword overlap is the single biggest input to that match. Recruiters do the same thing with their eyes: they skim for the 5–10 terms the hiring manager cares about.

If those terms aren't in your resume, you can be a perfect candidate and still get filtered out. The fix is simple and honest: find the gap, then add the missing terms where they genuinely apply to your experience.

How to fix the missing keywords (5 honest moves)

Keywords are step one. Get the full 21-check scan.

This tool finds keyword gaps. ResumeScorePro's free scanner also checks formatting traps, quantified impact, brevity, and skills placement — the other reasons resumes get filtered. 3 free scans, no sign-up, nothing uploaded.

Frequently asked questions

What is a resume keyword gap?

A keyword gap is the set of important terms that appear in a job posting but not in your resume. Applicant tracking systems and recruiters both scan for these terms, so a large gap often means your resume gets filtered out before a human reads it.

How many keywords should my resume match?

There is no universal number — every posting emphasizes different terms. Aim to cover the posting's must-have skills and the terms it repeats most often; those carry the most weight in both ATS parsing and recruiter skimming.

Should I paste the job description into my resume to match keywords?

No. Keyword stuffing is easy to detect and will get you rejected by any human reviewer. Add keywords only where they are true: skills you actually have, tools you have actually used, in natural bullet points.

Does this keyword checker upload my resume?

No. It runs entirely in your browser with JavaScript. Your text never leaves your device, is never sent to our servers, and is never stored.

Is keyword matching the same as an ATS score?

No — keyword overlap is only one part. A full ATS check also looks at formatting, section headers, quantified achievements, brevity, and skills placement. This page's tool is a quick keyword-gap heuristic; the free 21-check scanner on our homepage covers the full picture.