Dokku vs Nanobox: What are the differences?
Dokku: Docker powered mini-Heroku in around 100 lines of Bash. Docker powered mini-Heroku. The smallest PaaS implementation you've ever seen; Nanobox: The Ideal Platform for Developers. Nanobox is the ideal platform for developers allowing you to focus on code, not config, by removing the need to deal with environment configuration and dev-ops complexity.
Dokku and Nanobox can be primarily classified as "Platform as a Service" tools.
Dokku and Nanobox are both open source tools. It seems that Dokku with 17.8K GitHub stars and 1.45K forks on GitHub has more adoption than Nanobox with 1.36K GitHub stars and 73 GitHub forks.