Emailens is an email QA and compatibility testing platform built for developers, marketing teams, designers and growth teams. It catches rendering bugs, broken layouts, and HTML/CSS quirks across major email clients before campaigns go out. Powered by @emailens/engine, it lets teams automate email validation, preview dynamic templates instantly, and protect inbox deliverability. A modern, developer-first tool replacing outdated testing suites with fast, reliable pre-send quality assurance.