BeeFree

Chamaileon offers responsive email templates for any email campaign, from newsletters to transactional emails. All templates are editable online and downloadable in HTML.

Bant.io Email Template is an online generator that helps you craft the perfect cold email by leveraging insights from the top 3% of high-performing email sequences, from +12,000 campaigns to +100,000 message variants.

Mosaico is an open-source email template editor created by VOXmail. The email template builder supports responsive design and live WYSIWYG editing.

Unlayer is an email editor and page builder to build responsive designs quickly and easily. You can use it online or embed it into your application.

TOPOL.io is an email template builder that helps you create beautiful emails using an intuitive drag-and-drop editor for every device.

Stripo is a free email template builder that allows you to create professional and responsive emails fast with no HTML skills, design with ready-to-use templates, and the ability to save and reuse email modules.