Calepin is described as 'reads Markdown-formatted, plain-text files stored in your Dropbox and converts them into blog posts for you. You can publish, edit, re-edit, and delete posts just by editing these files and then re-publishing your blog' and is an website in the Online Services category. There are six alternatives to Calepin, not only websites but also apps for. The best alternative is CloudCannon. It's not free, so if you're looking for a free alternative, you could try Pancake.io or Droppages. Other great sites and apps similar to Calepin are Site44 (Paid), duet.to (Paid) and Appernetic (Freemium).
Pancake.io uses a shared Dropbox folder or from Git-progect to host your web pages, making creating and editing your pages very quick. All you need to do is create a text file, and save it into the special Pancake folder in your Dropbox account or from git-repository.
Dropbox has done an amazing job building a product that everyone knows and everyone uses and everyone loves. We all use Dropbox to store and share documents, designs and all different kinds of files, so why not websites?
Appernetic is a web service for managing and generating static content for GitHub Pages. Static content is generated with Hugo and provides a robust theming system that is capable of producing complicated websites.