Every job seeker has heard the stat: 75% of resumes never reach a human recruiter. They get filtered by ATS before anyone reads them.

I built a free, client-side tool to help check resumes against common ATS requirements. Here's what I learned.

What ATS Systems Actually Look For

1. Section Headers Matter

ATS systems scan for standard headers: "Experience", "Education", "Skills". Creative names like "My Journey" often get missed entirely.

2. Quantified Achievements Get Flagged

The difference between "managed a team" and "managed a team of 12, delivering 3 projects 15% under budget" is massive for ATS scoring.

3. Contact Info Must Be Parseable

Fancy formatting, columns, or graphics can break ATS parsing of basic contact details.

4. Keywords Must Match Naturally

Modern ATS detects keyword stuffing.…