There are many tools available for creating technical architecture diagrams.Microsoft Visio is a popular choice but not free and integrates well with MS Teams.Draw.io is a free tool that integrates well with cloud services and allows custom templates.Excalidraw.com provides a simple drawing interface with a hand-made feel but has some limitations.Cloudairy.com offers beautifully designed animated architecture diagrams and a user-friendly interface.IcePanel.io supports the C4 Model and provides strong linking capabilities for explaining complex technical issues.