How we score tools →

Docker is the platform that made containers mainstream — UK developers package applications with their dependencies and run them identically anywhere. Docker Desktop is free for small businesses and personal use; team plans cost around $9/user/month. It integrates with every CI/CD platform, cloud provider, and orchestration tool like Kubernetes. Docker is GDPR compliant with documented processing terms. For UK engineering teams, containers are the foundation of modern deployment — Docker remains the most accessible way in, even as managed platforms like Railway and Render abstract it away.