The following is a list of (mostly) free drawing and design tools, software and apps available online. It is by no means exhaustive! I will add to it as I come across new things (or at least things that are new to me)… and I’ll try to delete anything that gets out of date.
The fully featured version of SketchBook is now free for personal use on desktop, mobile and tablet! Yay! SketchBook is a drawing, sketching and painting app. It has painting and drawing tools such as pencils, markers, rulers, and brushes and is capable of using pressure-sensitive features. Works on all devices.
Inkscape is a totally free, open-source vector (scalable graphics that won’t blur when you resize them) graphics programme. It can be used to create or edit images such as illustrations, diagrams, charts and logos. It is available for Windows, MacOS and Linux.
Sketchup is a 3D drawing and modelling programme. It can be used for architectural or interior design, or even film and video game design. It is free for personal use.
Creately is a web-based diagram tool, that allows you to create many diagrams types including Flowcharts, Venn diagrams, story boards etc. It is free for personal use. It is available online, on desktop and also on mobile.
Krita is a free, professional, open source painting programme….for amazing people who are far more artistic than me! Krita features an intuitive user interface, and the docks and panels can be moved and customised. You can then save your changes as your own workspace. You can also create your own shortcuts for your most commonly used tools.
Note: please read the disclaimer before downloading/using any of these drawing or design tools.