Coolify: Open-Source Self-Hosted PaaS Offers Alternative to Vercel, Heroku, and Netlify

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Coolify is a free, Apache 2.0-licensed platform that lets developers run a push-to-deploy hosting environment on their own servers instead of managed services like Vercel or Heroku. It can be installed on any SSH-accessible machine, from a low-cost VPS to a Raspberry Pi, and offers features such as automatic HTTPS, preview deployments, and over 360 one-click services. Its architecture separates the control plane from application runtime, so live apps keep serving traffic even if the Coolify dashboard goes offline. Applications are built using Nixpacks, Railpack, Dockerfiles, Docker Compose, or prebuilt images, with support for many languages and frameworks. The platform is positioned as a way to avoid vendor lock-in and usage-based pricing.

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