SaltStack takes a new approach to infrastructure management by developing software that is easy enough to get running in seconds, scalable enough to manage tens of thousands of servers, and fast enough to control and communicate with them in milliseconds. Developed by Salt Stack
License: Open Source
Chef is primarily focused on configuration management with a strong emphasis on a declarative approach and robust community support, while Salt is more versatile, offering both configuration management and orchestration capabilities with an agentless architecture.