What tools did you use for drawing diagrams and notations (draw.io and others)?

The following tools are often used for drawing diagrams and notations:

• draw.io (diagrams.net) — a free and user-friendly online tool for creating UML diagrams, flowcharts, ER diagrams, and other visual models.
• Microsoft Visio — a powerful tool with a wide range of templates and elements for professional modeling.
• Lucidchart — a cloud-based service supporting collaboration and integrations.
• PlantUML — a textual diagram description language that allows generating diagrams from code, convenient for version control.
• StarUML — a desktop application for creating UML diagrams with support for extensions.

The choice depends on project requirements, the need for collaboration, and team preferences.