Canned Emails - A minimal site with prewritten emails

MJML - The open source framework for responsive emails

analyze.email - Test the spam-y-ness of your emails

Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.

Rename Email - Easily change the subject of any email, by cloudHQ

Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.