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ATS Resume Checker

See how your resume reads to applicant tracking systems. Get free readability scores and keyword analysis in your browser — no signup required. Upgrade to Pro for the full ATS compatibility score.

Check Your Resume — FreeHow ATS Works

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What you get

Four dimensions of ATS analysis, powered by the same engine recruiters trust.

Readability Score

Flesch Reading Ease and grade-level analysis ensure your resume is clear and scannable. ATS systems and recruiters both prefer concise, direct language.

Keyword Analysis

Detects action verbs (60+), technical skills (30+), and soft skills (15+) in your resume. Identifies gaps so you can match the job description.

Section Checker

Verifies your resume includes the sections ATS expects: contact info, experience, education, and skills. Flags missing or non-standard headings.

Overall Resume Score

A free composite 0-100 score weighted across readability (30%), keywords (40%), and content quality (30%). The separate ATS compatibility score comes with Pro.

How applicant tracking systems work

An Applicant Tracking System (ATS) is software that companies use to collect, sort, and filter job applications. When you submit your resume online, it almost never goes directly to a hiring manager. Instead, the ATS parses your document into structured data — extracting your name, contact information, work history, education, and skills — then scores and ranks you against other candidates.

The numbers are striking: 75% of resumes are rejected by ATS before a human ever sees them. Over 98% of Fortune 500 companies and a growing majority of mid-size employers rely on ATS software to manage the volume of applications they receive. If your resume isn't formatted for machine readability, it may never reach the recruiter's desk — regardless of your qualifications.

ATS parsers work by identifying standard sections (like "Experience" and "Education"), extracting keywords that match the job description, and scoring your resume based on relevance. Problems arise when resumes use non-standard formatting: multi-column layouts, tables, embedded images, creative section headings, or unusual fonts can all cause the parser to misread or skip content entirely.

That's why ATS optimization matters. It isn't about gaming the system — it's about ensuring your real qualifications are accurately read and represented. A well-formatted resume that matches the job description's keywords will score higher and reach human reviewers more consistently.

8 tips to optimize your resume for ATS

  1. 1

    Use standard section headings

    Stick to headings ATS systems recognize: "Experience," "Education," "Skills," "Summary." Avoid creative labels like "My Journey" or "What I Bring."

  2. 2

    Include keywords from the job description

    Mirror the exact terms used in the posting. If the listing says "project management," use that phrase rather than just "managed projects." ATS matches are often literal.

  3. 3

    Use a single-column layout

    Multi-column layouts, sidebars, and text boxes confuse ATS parsers. A clean single-column structure ensures every line is read in the correct order.

  4. 4

    Avoid tables, images, and graphics

    ATS software cannot read content inside images, charts, or complex table structures. All of your qualifications should be in plain text.

  5. 5

    Use standard fonts

    Fonts like Arial, Calibri, Garamond, and Helvetica render reliably across all systems. Decorative or uncommon fonts may cause characters to be misread.

  6. 6

    Save as PDF (not DOCX with complex formatting)

    Modern ATS platforms parse PDF reliably. Avoid DOCX files with headers, footers, or text boxes, which can scramble the reading order.

  7. 7

    Start bullet points with action verbs

    Lead with strong verbs: "Designed," "Implemented," "Reduced," "Managed." ATS keyword algorithms weigh the first word of each bullet heavily.

  8. 8

    Keep it to 1-2 pages

    Most ATS systems handle 1-2 page resumes without issue. Longer documents increase the risk of parsing errors and dilute your keyword density.

Frequently asked questions

What is an ATS?

An Applicant Tracking System (ATS) is software used by employers to manage job applications. It scans, parses, and ranks resumes based on keywords, formatting, and relevance to the job description. Popular platforms include Workday, Greenhouse, Lever, and iCIMS. Over 98% of Fortune 500 companies use an ATS to filter candidates before a human recruiter ever sees their resume.

How do I check if my resume is ATS-friendly?

Open the ResumeMD editor and paste or type your resume content. Click the Analytics panel to see readability metrics (Flesch Reading Ease and grade level) and keyword analysis (action verbs, technical skills, soft skills) free with no signup required. Upgrading to Pro adds the full ATS compatibility score and format-compliance checks. The tool runs entirely in your browser.

What resume format is best for ATS?

A reverse-chronological format is the safest choice for ATS compatibility. Use standard section headings (Experience, Education, Skills), a single-column layout, and avoid tables, images, or complex graphics. PDF is the recommended file format as it preserves formatting while remaining parseable by modern ATS software.

Does ResumeMD's ATS checker require signup?

No account is required. Free readability and keyword analysis run entirely in your browser — your resume stays in local storage and is never uploaded to a server. The full ATS compatibility score is available with ResumeMD Pro.

What's a good ATS score?

ResumeMD gives every resume a free 0-100 score across three dimensions: readability (30%), keyword strength (40%), and content quality (30%). A score above 70 is considered good, and 80+ is a strong target. Scores below 50 point to formatting, missing keywords, or readability problems worth fixing. The separate ATS compatibility score, which checks how cleanly your format parses in applicant tracking systems, comes with Pro.

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