As part of 👀 Visual Content on this Website and as follow-up for 🌙 (01-12-2024) Only Support Dark Mode, draw.io desktop is used as the main tool to create diagrams. Alternatives are described in 📐 Diagramming Tools.
The reasons to go for draw.io are:
- Not cloud-based (runs locally, no subscription and files are stored locally)
- Simple
- Familiar tool