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.
Autodesk Vault - Autodesk Vault is a product lifecycle management solution integrated with other Autodesk Products such as Inventor Professional, AutoCAD Electrical, and Mechanical and Civil 3D products.
draw.io - Online diagramming application
PTC Windchill - Windchill offers breakthrough Product Lifecycle Management (PLM) capabilities, unleashing more data to more stakeholders throughout your organization through a single source of truth for product data and processes.
Visio - Simplify and communicate complex information using data-linked diagrams.
GrabCAD Workbench - GrabCAD Workbench is a world’s most popular online community specially designed for mechanical engineers to share talent, expand knowledge and collaborate with the others.