Top 11 products relevant to Development, Flowcharts, and Diagrams

Structurizr is a workspace editor that creates software architecture diagrams and documentation based on the C4 model.

Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams.

Textik is a free ASCII diagrams editor which allows you to create any text-based ASCII diagram.

Open Source

ASCII Art Studio has been designed to help create ASCII art.

A Powerful idea processor.It's Open Source and Freeware.

System Designer is a low code development platform that you can use to create UML-based models.

SEQO generates UML sequence diagrams from a simple text.

Flowgorithm is one of the alluring flowchart programming languages that come with the capability of simple graphical flowcharting.

Open Source

The ObjectAid UML Explorer is an agile and lightweight code visualization tool for the Eclipse IDE.

UModel is a web-based tool that enables developers to use UML diagrams to express their software requirements.

Chrons Web Modeler, now named Olympos, is a collaboration tool that you can use to create UML models and diagrams with features like document, report, and code generator.