Side-by-side comparison

37signals' tool for zero-downtime container deploys to any servers over SSH; the default in Rails 8.

Self-hostable Heroku/Netlify/Vercel alternative with Git deploys, one-click services and databases.

Self-hosted PaaS built on Docker and Traefik for apps, Compose stacks and databases, with multi-server support.

Docker-powered mini-Heroku with git push deploys on a single server; small and battle-tested.