draw.io - Online diagramming application
IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
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.
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
Cuttlefish - Cuttlefish Design is a graphic design and website design studio based in Temora in the Riverina region of NSW.