Emailens: One-Click Email Audit

Audit HTML emails for CSS compatibility, accessibility, and deliverability — directly from any page.

Emailens is the ultimate visual preflight inspector designed for modern email developers, designers, and marketing engineers. Stop sending broken layouts to Gmail, Outlook, or Apple Mail. Emailens sits directly inside your browser side panel, analyzing your email HTML, CSS, MJML, or React templates in real-time as you build. 🚀 CORE FEATURES • Real-Time Preflight Scoring Get an instant, dynamic compatibility score (0-100%) indicating how robust your email structure is across dozens of major desktop, mobile, and web mail clients. • Interactive Visual Element Inspector Hover and click on any visual block in your email rendering viewport. Emailens will isolate the exact element, calculate its individual HTML/CSS compatibility, and display collapsible raw source snippets with 1-click clipboard copying. • Comprehensive CSS Diagnostics Uncover tricky CSS properties that break in popular clients. Emailens points out the exact target selector, explains the bug (e.g. Gmail stripping `<style>` tags or Outlook ignoring padding), and provides elegant inline alternative recommendations. • Deliverability & Gmail Clipping Warnings Emails over 102KB are clipped by Gmail, instantly hiding content and stripping tracking pixels. Emailens calculates payload size live, providing clipping warnings and spam trigger notifications before you hit send. • Screen Reader Accessibility Diagnostics Ensure your campaigns are accessible to all subscribers. Get instant checks on missing alt attributes, logical table structures, semantic elements, and screen-reader readiness. • Seamless Framework Compile Support Paste HTML, MJML, JSX, or Maizzle code directly into the panel to compile, lint, and run comprehensive visual audits instantly. 🔧 INTEGRATES WITH YOUR STACK Whether you build templates locally or manage code inside ESP editors, Emailens operates everywhere: • Klaviyo, HubSpot, Campaign Monitor, Mailchimp Viewports • Local developer frames, MJML Playgrounds, and custom web apps • Next-generation reactive frameworks (JSX, Maizzle, React Email) 🔒 SECURE & PRIVATE Emailens is built with developer security first. We do not track personal subscriber data or store sensitive credentials. All visual inspections and pre-flight scorecards occur securely inside isolated sandboxed scopes.