The Front-End Checklist is a free, open-source audit tool for shipping quality websites. Work through 400 items across 13 sections — accessibility, performance, SEO, security, privacy, testing, and more. Paste any public URL to run up to 246 automatic checks: a score, failures sorted High, Medium, Low, and one-click ticking into your checklist. Plus a free MCP server and agent skill, so your AI assistant can audit, explain failures, fix the code, and re-audit.
