
ConceptDraw PRO
ConceptDraw PRO v11 is the only product that supports Visio legacy, runs on macOS and Windows, and is a perpetual license. Import/Export VDX, VSDX, VSSX and Import VSD, VSS files.
Browser based Chart and Diagram tool. Requires sign up. Free account allows one diagram to be saved. Very easy to use, professional looking.
Browser based Chart and Diagram tool.
Requires sign up. Free account allows one diagram to be saved.
Very easy to use, professional looking. Main advantage is that diagrams can be shared with collaborators easily, in the same way as Google docs etc.
flowchart workflow chart diagram