MailDeveloper
Stripo
MJML
Foundation for Emails 2
Really Good Emails
BeeFree
Templates by Email Monster
Flodesk
Getwebstack
MarsX
Getwebstack is for development teams that implement a lot of different projects. It can help outsourcing companies, accelerators, freelancers, or dev studios to develop fast. It is also for individuals that want to test a technology or an idea for a startup with a quick setup and deployment. Getwebstack provides a complete solution that covers all the technical aspects of a web app. It has an affordable monthly subscription instead of an expensive one-time payment.
MailDeveloper
GetwebstackStripo - 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.
MarsX - MarsX leverages the power of AI to help users build mobile and web applications using code and no-code technology. MarsX is highly accessible, allowing even non-developers and those with zero building and coding experience to create their own mobile
MJML - The open source framework for responsive emails
Foundation for Emails 2 - Create responsive HTML emails that work on any device
Really Good Emails - A large collection of good product email design.
BeeFree - BeeFree is an all-in-one solution that works anywhere you are.