Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Plumsail Documents - Document automation software that integrates with your favorite apps to generate documents seamlessly.
MJML - The open source framework for responsive emails
DocSpring - DocSpring provides a PDF filling API that makes it easy for programmers to fill out and generate PDF documents.
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.
WebMerge - WebMerge is an online platform that allows you to easily collect data, populate a document and send it to any contact automatically.