Email Kick - Email designer and analytics for your transactional emails.
GitShowcase - Plug and play portfolio for developers
Really Good Emails - A large collection of good product email design.
GPortfolio - Create an automatic portfolio based on Github profile.
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.
Webfolio - Showcases your best code to startups and get hired