Startups, small businesses, or any organization requiring cost-effective and professionally designed email templates to improve their email marketing strategies. It's particularly useful for teams lacking in-house design or coding expertise.
CSS Peeper - Smart CSS viewer tailored for Designers.
HTMLEmail.io - Responsive HTML email templates for startups & developers
CSSViewer - A simple CSS property viewer
Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Unused CSS - Easily find and remove unused CSS rules
MJML - The open source framework for responsive emails