Workflow Engine is described as 'Lightweight all-in-one component that enables you to add custom executable workflows of any complexity to any .NET or Java software, be it your own creation or a third-party solution, with minimal changes to existing code' and is an app. There are seven alternatives to Workflow Engine for a variety of platforms, including Windows, Linux, Mac, Self-Hosted and SaaS apps. The best Workflow Engine alternative is Workflow Engine .NET. It's not free, so if you're looking for a free alternative, you could try Imixs-Workflow or Activiti. Other great apps like Workflow Engine are Signavio, cDevWorkflow, Cadence Workflow and Temporal.