MJML - The open source framework for responsive emails
MAXQDA - a professional software for qualitative and mixed methods data analysis
Foundation for Emails 2 - Create responsive HTML emails that work on any device
ATLAS.ti - ATLAS.ti is a powerful workbench for the qualitative analysis of large bodies of textual, graphical, audio and video data. It offers a variety of sophisticated tools for accomplishing the tasks associated with any systematic approach to "soft" data.
HTMLEmail.io - Responsive HTML email templates for startups & developers
QualCoder - A very complete Free and Open Source Software (FOSS) Computer-Assisted Qualitative Data Analysis Software (CAQDAS) written in Python. It works with text, images, and multimedia such as audios and videos.