UML tools for modeling software projects.
The modeling language is a practical tool for developers to create clear plans for software projects.
We have therefore compiled a small list of tools that can help you model your software projects.
1- ArgoUML (https://www.clubic.com/telecharger-fiche122322-argouml.html)
2- Magic Draw (https://www.nomagic.com/products/magicdraw#intro)
3- Lucidchart (https://www.lucidchart.com/pages/fr)
4- Microsoft visio (https://www.microsoft.com/fr/microsoft-365/visio/flowchart-software)
The one used in my case to model the services to dockerize is lucidchart, intuitive but paying.

@asokri non of your list is open source and web based!

We have been using ArgoUML but webbased solutions tend to have and ascendant on desktop ones.

@cfofack, did I heard you about a tool that fulfills those two requirements ?