OmniGraffle is described as 'Can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to shapes even when they’re moved, and magically organizing diagrams with just one click' and is a very popular Diagram Editor in the office & productivity category. There are more than 100 alternatives to OmniGraffle for a variety of platforms, including Web-based, Windows, Mac, Linux and iPad apps. The best OmniGraffle alternative is draw.io, which is both free and Open Source. Other great apps like OmniGraffle are Penpot, Excalidraw, LibreOffice - Draw and yEd Graph Editor.
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
The PlantText tool is an online tool for quickly creating UML (Unified Modeling Language) diagrams. Unlike most tools, PlantText can build diagrams without the use of a mouse because it is based on PlantUML markup language.
With Ilograph diagrams, you define your resources once, then show how they're related from many different perspectives. Seamlessly change perspectives to demonstrate cross-functional dependencies and shared responsibilities.
Diagrams is a native diagram editor for macOS. With this productivity tool you can create beautiful, structured diagrams.
GermanyEU
Xfig is an interactive drawing tool which runs under X Window System Version 11 Release 4 (X11R4) or later, on most UNIX-compatible platforms, and e.g. under Darwin on the MacIntosh and any X server under Microsoft Windows.
Apple Vision like gesture controls meet ChatGPT in an app to explore knowledge that doesn't require a headset or downloads. You just need a modern device with a webcam.
Automatically generates cloud network topology diagrams for AWS, Azure and GCP. Visualizes cloud infrastructure, tracks versions, auto updates, generates compliance reports with on embed anywhere viewer and API access.
United Kingdom
The GoVisual Diagram editor (GDE) provides powerful functionality for editing and automatic layout of diagrams. Diagrams are represented in form of graphs and cluster graphs. GDE contains all the layout styles available in the GoVisual libraries.
Easy diagram generator for Sequence Diagrams and Message Sequence Charts.
SwedenEU
