Diagramming Applications

This is a list of some of the free diagramming applications that can be found in the market:

List of Free Diagramming Applications

Free diagramming applications featured on this post:

Google Docs Draw is freeware. Commercial. Web-based.

https://docs.google.com/drawings

Dia Diagram Editor is free and open source (FOSS). Desktop application.

LibreOffice Draw is free and open source (FOSS). Desktop Application.

yEd is freeware. Propietary. Java-based Desktop Application.

Mermaid is a markup language to describe diagrams.

There are open source implementations of it.