Buttondown

Buttondown is a minimalist email newsletter tool built for writers who prefer simplicity and markdown. It strips away complex automation builders and flashy templates in favor of a clean, fast, and focused writing experience. Emails are composed primarily in markdown or a simple rich-text editor, and the interface is deliberately sparse. It includes essential features like segmentation, basic automation (welcome emails), and an API, but avoids feature bloat.

This makes it perfect for individuals, developers, and writers who want to send a newsletter without distractions, value speed and reliability, and are comfortable with a more technical or text-oriented approach to email creation.