
Userflows
UMLGraph
draw.io
Dia
yEd
OmniGraffle
CollabNet
UMLet
optiCutter
CutList Optimizer
Cutlist Plus
WorkshopBuddy
Optimalon
Cut Optimizer
Cutlist Evolution
MaxCut
Userflows
optiCutterUMLGraph - UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.
CutList Optimizer - A free cutlist optimizer
draw.io - Online diagramming application
Cutlist Plus - Cutlist Plus is an excellent layout management platform that allows to create highly optimized shape-based content for websites or applications with cutting diagrams like rectangular, triangular, square, or multiple dimensional interfaces.
Dia - Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.
WorkshopBuddy - A professional cutlist optimizer to calculate efficient layouts on linear & sheet material. Commercial workshops generate significant savings & reduce waste.