Abstract: Disclosed are various embodiments for domain-driven application breakout. Application components are identified based on analysis of a computing application, where the application components are different portions of the computing application. Individual ones of the application components are associated with a category, where the category may include a business domain category. One or more of the application components associated with the category are extracted as an independently deployable subunit, which may include a microservice. The independently deployable subunit is generated for the category using the at least one of the application components and deployed separate from the computing application. A local call in the computing application to the extracted application components is refactored to a network call to the independently deployable subunit.