One of the most popular alternatives to OmniGraffle is draw.io, which is free and open source. Other popular alternatives are Penpot, Excalidraw, LibreOffice - Draw and Dia. You're spoiled for choice with Diagram Editors like OmniGraffle: we list more than 100 alternatives for the web, Windows, Mac, Linux and iPad.
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.
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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.
Thortspace builds a 3D space-map of your thoughts. The 3-D linkages generated by Thortspace spheres facilitated both new insights and new lines of data management, and – almost magically. Thortspace is an invaluable aid to brainstorming prediction.
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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.
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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.
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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.
