Drawing & Diagraming Tools for Mac draw.io This is the tool I have started using recently. I was looking for a free web based solution and this one works good for me as of now. Will provide detailed review later. Google+ Inkscape Inkscape is a free-hand drawing tool and it can create SVG images. See here , the full feature of Inkscape. When installing Inkscape, you want to make sure XQuartz will also needs to be installed. Please read the installation process carefully. Paint 2 I got this tool from Apple App Store for about $5. I needed something urgently for my wife to work on some wireframe and diagraming. After a quick evaluation for about 30 min, I bought this tool. Till now, it has been doing its job. This is not being used for tones of paint functionality, but limited to editing the wireframes, screenshots, etc what was being done through MSPaint in windows. $5 not a big deal, even if we have to trash it tomorrow. Modeling Tool Archi Archi is the Ar...