Apps similar to Diagram Designer include draw.io, which is free and open source. Other options are Penpot, Excalidraw, LibreOffice - Draw and Dia. You're spoiled for choice with Diagram Editors like Diagram Designer: we list more than 50 alternatives for Windows, the web, Mac, Linux and iPhone.
UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide support for all types UML diagrams.
Greece
EU
MagicDraw is an award-winning business process, architecture, software and system modeling tool with teamwork support. MagicDraw UML can do comprehensive UML diagramming, reverse and forward engineering for Java and C++.
Russia
ConceptDraw DIAGRAM v14 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.
Ukraine
Enter your lists here. Use either the "text area" or "file upload" to assign your list to the diagram. Files should be delimiter ASCII files (Any white space like space, tab, or line break, and comma).
IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard.
Vexlio turns flowcharts, process maps, and diagrams into clickable, interactive visuals that can be shared with a link (no sign-in required to view).
MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software.
United States
Cubetto gives you the opportunity to model in modeling languages from a vast set of selections. You can choose between BPMN, Event-driven Process Chains (EPC) to Flowcharts. Even a generic modeling language for your own needs is available.
GermanyEU
Fluid UI is the fastest mobile app prototyping tool available. Design and test your low and high fidelity app mockups on a mobile device with ease. Simple and UX oriented, this UI tool helps unlock creativity and will save your team time and money while gathering app...
