CodedmailsfreeReady to use 50+ responsive HTML email templates - Codedmails Free
MjmlMJML: the only framework that makes responsive-email easy
PineA modular and lightweight, responsive email framework.
MaizzleOfficial Maizzle starter project.
HemlHEML is an open source markup language for building responsive email.
CerberusA few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.
BlastulaEasily send great-looking HTML email messages from R
Maizzle PhpJigsaw-based PHP build system for rapid HTML email development with Tailwind CSS.
starter-postmarkA Maizzle starter based on Postmark's transactional email templates.
acornA responsive email framework based on a golden ratio typography grid.
language-mjmlAtom Editor package providing syntax support for MJML
cliCLI tool for the Maizzle Email Framework.