PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.



WebSequenceDiagrams is described as 'Easy diagram generator for Sequence Diagrams and Message Sequence Charts' and is an website. There are more than 25 alternatives to WebSequenceDiagrams, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Android apps. The best WebSequenceDiagrams alternative is yEd Graph Editor, which is free. Other great sites and apps similar to WebSequenceDiagrams are Dia, Lucidchart, Microsoft Visio and PlantUML.
PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.



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.




MyDraw is an easy to use, yet powerful diagramming software that lets you create a large number of diagrams like flowcharts, organizational charts, mind maps, network diagrams, floor plans, family trees, business model diagrams, and many more.




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.

Free Sequence Diagram Tool Online. Clean simple interface and fast client side processing. Works Online and Offline, Scripting and Drag and Drop.








A simple JavaScript library to turn text into vector UML sequence diagrams. Heavily inspired by websequencediagrams.com, who offer a server-side solution. js-sequence-diagrams uses Jison to parse the text, and Snap.svg to draw the image.

js-sequence-diagrams is the most popular Self-Hosted alternative to WebSequenceDiagrams.
VSD Viewer opens Visio drawings directly on a computer without conversion on external Web Servers. Viewing Visio documents is as simple as dragging and dropping off files (with a .vsd, .vsdx, .vdx extension) to the Application window.







Ardoq helps organizations navigate their digital transformation journey with the most flexible, data-driven, and forward-thinking tool in the Enterprise Architecture industry. Predict, plan, and execute change across the organization.



IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard.

Simpler syntax and real time updates of diagrams