You applied. You waited. You got nothing. If that cycle sounds familiar, there is a good chance an Applicant Tracking System (ATS) filtered your resume before any human saw it. The fix is simple once you know your score — but most tools that claim to check it for free make you create an account, start a trial, or pay before you see anything useful.
Rezly's ATS checker gives you 5 free checks per day with no account required — no email gate, no credit card. Create a free account for 20 checks/day, or upgrade to Pro for unlimited. Paste your resume, paste the job description, and get your score and missing keywords in about 10 seconds.
Why resumes get rejected before anyone reads them
Applicant Tracking Systems are software platforms — Greenhouse, Lever, Workday, iCIMS — that companies use to sort applications at scale. When you hit Submit, the ATS parses your resume into structured fields, extracts keywords, and scores your fit against the job description. If your score falls below the threshold (typically 70–75%), your application is archived automatically.
According to research by Jobscan, over 75% of resumes are rejected by ATS before a recruiter sees them. The most common reasons are missing keywords, two-column formatting the parser can't read, and content inside tables or text boxes that gets skipped entirely.
Why most "free" ATS checkers aren't actually free
The pattern is predictable: you paste your resume, click check, and then get a blurred results page asking you to sign up. Or you get a score but no keyword detail unless you upgrade. Or it's free for "3 checks a month" — which sounds generous until you're applying to 15 jobs a week.
These tools use the free check as a lead-generation funnel. There is nothing wrong with that model, but it means the most useful information — the specific keywords you're missing — is the thing they withhold.
How to use the free ATS checker
Copy your resume as plain text
Open your resume in Word or Google Docs, select all, and paste it into the Resume field. You don't need to format it — plain text is fine. PDF text can usually be copied directly too.
Paste the job description
Copy the full job posting text — including the Requirements and Responsibilities sections. The more complete the job description, the more accurate the keyword match.
Click Check and read your results
You'll get three things: a percentage match score, a list of keywords present in the job description but missing from your resume, and formatting flags if your resume has structural issues the ATS might choke on.
Understanding your ATS score
- Below 50% — Critical gaps. The ATS will almost certainly filter you out. Focus on adding the most frequent hard skill keywords from the job description before resubmitting.
- 50–74% — Partial match. You may get through at lower-volume companies but will struggle at competitive roles with high applicant volume. Add the missing keywords from the results list.
- 75–84% — Good match. Most ATS systems will surface your resume. A few targeted additions can push you to the strong tier.
- 85%+— Strong match. You're well past most ATS filters. At this point, the resume quality and your experience are what determines the callback.
What to actually do with the missing keywords
The missing keywords list is only useful if you know where to add them. ATS systems weight different sections differently — the skills section and summary are indexed most heavily. Here is a fast approach:
- Add hard skill keywords (tools, languages, platforms) directly to your Skills or Technical Skills section — no context needed.
- Weave role-specific phrases ("cross-functional collaboration", "stakeholder management") into your Experience bullets where you can back them up with an example.
- Drop 2–3 high-priority keywords into your Summary paragraph — this section is read early by both ATS and humans.
- Re-run the check after edits. You should see the score move up meaningfully within 1–2 revision passes.