Coolify is an open-source, self-hostable Platform-as-a-Service (PaaS) that serves as a free alternative to Vercel, Heroku, and Netlify. It allows developers to deploy static sites, databases, full-stack applications, and over 280 one-click services on their own servers using just an SSH connection. By giving teams full control over their infrastructure, Coolify eliminates vendor lock-in and recurring platform fees while providing a modern deployment experience.
Key features include automatic SSL certificate provisioning via Let's Encrypt, integration with GitHub, GitLab, Bitbucket, and Gitea for Git-based deployments, and automated backups to any S3-compatible storage solution. Coolify stands out with its comprehensive built-in monitoring, server maintenance automation, and a robust API that enables programmatic deployment management. It also integrates seamlessly with popular CI/CD tools like GitHub Actions and GitLab CI, allowing teams to build custom deployment pipelines.
Coolify is ideal for developers, startups, and teams who want the convenience of a managed PaaS without giving up ownership of their data and infrastructure. The self-hosted version is completely free and open source with all features included, while Coolify Cloud offers a managed hosting option starting at $5 per month per server for those who prefer not to maintain their own instance. Its active community and broad compatibility make it one of the most popular self-hosted deployment platforms available.