What are the best tools or platforms for analyzing resume keywords to optimize job applications?

To optimize your resume for Applicant Tracking Systems (ATS), I recommend focusing on these three tools, each suited for different needs:

• Jobscan is the industry leader for technical accuracy. It mimics the logic used by major ATS platforms to give you a percentage match score. It is highly effective for identifying specific "hard skill" gaps, though the free version is limited to a few scans. Use this for high-stakes applications at large corporations.
• Teal is the best all-in-one career platform. Its resume builder includes a built-in "Matching Mode" that highlights missing keywords directly against a job description. It is ideal if you want to organize your entire job search and resume versions in one dashboard.
• ResyMatch.io (by Cultivated Culture) is the top choice if you want a fast, free tool. It provides a clear "Match" score and identifies specific keywords you’ve missed without the heavy paywalls found on other sites.

For most users, Teal offers the best workflow for managing multiple applications, while Jobscan provides the most rigorous analysis for beating complex filters.

Are you primarily applying for roles at large enterprises that use automated screening, or are you targeting smaller companies where a human is more likely to see your resume first?