Deploy and manage containerised applications on a server you control.
Free and open source (MIT licence per GitHub). Self-hosted: you supply the server.

Developer tools
Deploy apps, databases and websites from Git to servers you control.
Deploy apps, databases and websites from Git to servers you control.
Deploy full-stack web applications, databases and microservices on your own server using open-source Coolify instead of Platform.sh managed PaaS plans.
Free software does not include a free server. You own server security, capacity, upgrades and backups. Moving from managed hosting takes setup; edge networks and managed platform services need separate evaluation.
Each comparison covers the workflow described above, rather than every paid feature.