Mailtrain : Mailtrain is a self hosted newsletter application built on Node.js (v5+) and MySQL (v5.5+ or MariaDB). Mailtrain supports subscriber list management, ...
Kill the newsletter! : I love newsletters, but I hate receiving e-mails. Call me an oldie, but I still use RSS feeds to read my news and e-mails for communication. And I pre...
txti : Fast web pages for everybody.
With txti, anyone can use any device to share their story.
Litmus : Test and track your emails. Email previews, analytics and spam filter testing.
Budibase : Budibase is an open-source low-code platform for creating internal apps in minutes. Supports PostgreSQL, MySQL, MSSQL, MongoDB, Rest API, Docker, K8s
Substack is an online platform that provides publishing, payment, analytics, and design infrastructure to support subscription newsletters.