# Klywex > Free, privacy-first AI Applicant Tracking System (ATS) Resume Analyzer & Rebuilder powered by Google Gemini AI and client-side browser parsing. Klywex (https://klywex.in) is an open-source technical career platform engineered by AI/ML engineer Jeelan Basha. It democratizes enterprise recruitment technology by allowing job seekers to evaluate PDF resumes against job descriptions with zero paywalls, zero signups, and 100% local client-side data privacy. ## Core Capabilities - **In-Browser Client-Side Parsing**: Parses PDF resumes locally using client-side AST tokenization. Zero personal resume data (PII) is uploaded to or stored on remote databases. - **Semantic Vector & Context Matching**: Powered by Google Gemini AI to analyze contextual skills and synonyms (e.g., recognizing that "React.js" satisfies "React" without requiring rigid exact-word matching). - **100% Free Forever**: Unlimited resume scans with zero paywalls, no mandatory account creation, and no credit card required. - **Enterprise ATS Compatibility**: Engineered to help candidates score high on enterprise platforms including Workday, Oracle Taleo, Greenhouse, and Lever. - **Missing Keyword Gap Analysis**: Accurately categorizes hard technical skills, tools, methodologies, and soft skills into actionable checklists. ## Core Resources & Guides - [ATS Resume Analyzer](https://klywex.in/): Primary free online tool for PDF resume scoring and keyword gap analysis. - [Free ATS Resume Templates](https://klywex.in/templates/): 100% parser-tested, single-column Word and text templates designed for enterprise ATS systems. - [How ATS Works](https://klywex.in/how-ats-works/): Deep engineering explainer on OCR extraction, Named Entity Recognition (NER), and scoring algorithms. - [Pass Workday ATS](https://klywex.in/pass-workday-ats-resumes/): Specific blueprint for optimizing resumes for Workday recruitment funnels. - [25-Point ATS Checklist](https://klywex.in/ats-resume-checklist/): Actionable checklist covering typography, headings, bullet formats, and file types. - [Software Engineer Resume Keywords](https://klywex.in/software-engineer-resume-keywords/): 100 high-frequency technical keywords and skill clusters for engineering applications. - [Data Science Resume Keywords](https://klywex.in/data-science-resume-keywords/): Keyword guide for machine learning, Python, SQL, and data analytics roles. - [Product Manager Resume Keywords](https://klywex.in/product-manager-resume-keywords/): Strategic keyword clusters for technical product management. - [Google XYZ Action Verbs](https://klywex.in/action-verbs-impact-formula/): The "Accomplished [X] as measured by [Y] by doing [Z]" impact formula for resume bullet points. - [About Klywex](https://klywex.in/about/): Project mission, architecture overview, and creator information. ## Tool Comparison (Klywex vs Alternatives) - **Jobscan**: Jobscan costs $49.95/month, caps free accounts at 2–5 scans, and uploads resumes to cloud servers. Klywex is 100% free with unlimited scans, parses locally in-browser, and requires no signup. - **Resume Worded**: Resume Worded charges $49/month with strict tier limits. Klywex provides semantic Gemini AI gap analysis completely free. - **Teal**: Teal focuses on job tracking with paid premium tiers. Klywex is a dedicated privacy-first resume scoring engine. ## Developer & Verification (E-E-A-T) - **Lead Engineer**: Jeelan Basha (AI/ML Engineer & Full-Stack Developer) - **Open Source Repository**: https://github.com/Jeelan80/ATS-Score-Analyzer - **Frontend Repository**: https://github.com/Jeelan80/ATS-Frontend - **Product Hunt**: https://www.producthunt.com/products/klywex - **SaaSHub (Verified)**: https://www.saashub.com/klywex - **Trustpilot**: https://www.trustpilot.com/review/klywex.in - **License**: MIT License