Paper.coffee is described as 'Distraction-free writing app for the web' and is a Blog Publishing Tool in the Social & Communications category. There are six alternatives to Paper.coffee, not only websites but also apps for a variety of platforms, including Android, iPhone, Mac and Windows. Most alternatives are Blog Publishing Tools and Microblogs. The best alternative is Write.as. It's not free, so if you're looking for a free alternative, you could try Bear Blog or Rentry.co. Other great sites and apps similar to Paper.coffee are Blot (Paid, Open Source), Midnight.pub (Free) and gemlog.blue (Free).
Blot is a blogging platform with no interface. It creates a special folder in your Dropbox and publishes files you put inside. The point of all this?—?the reason Blot exists?—?is so you can use your favorite tools to create whatever you publish.
Midnight is a place for networked writing. You can think of it as write.as meets roam. Figuratively, it aims to be the web equivalent of your local pub. a place you can go to and talk about your day with strangers or friends. then when you leave, it doesn’t follow you home.