draw.io - Online diagramming application
Celonis - Celonis offers process mining tool for analyzing & visualizing business processes.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
UiPath Process Mining - Process mining and execution management software in the cloud that is simple and affordable.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications