Coolify

Coolify is an open-source platform-as-a-service that lets developers deploy apps, databases, and services to their own infrastructure. It gives small teams a Heroku-like workflow without forcing them onto a proprietary hosting stack.

Builders pick Coolify when they want simple deployments, preview environments, and managed databases while keeping control of servers and costs. It is especially useful for indie SaaS projects, agencies, and internal tools.