Qcad is an excellent tool that helps you create designs and plans in two dimensions. We can obtain technical drawings of parts, house plans, and even diagrams, all from an interface that facilitates creations. There is a trial version to test it for about a hundred hours. It is cross-platform (Linux, Windows, and Mac OS). But the best part is that if we use Linux, there is a GPL version of free software that is completely free. It offers multiple construction and modification tools, various modes for creating lines, circles, and arcs, solid fills and gradients, etc. It can work with layers at different levels, etc. In summary, its interface is simple but very complete and versatile. Additionally, we can export images in different formats like JPEG, PNG, and even STL to put into a 3D printer and obtain the piece physically. It hardly consumes any RAM resources or disk space.

can be found in Spanish, it has Menu bar, Toolbar, Drawing bar as lines, circles, dimensions, Status bar, has layers windows

qCAD is a tool for two-dimensional design (CAD), with a free software license and an interface very similar to proprietary alternatives. It is a great advantage that it does not require a strong investment to be used, as it is free. We can create from simple designs for novice users like small parts and their views in elevation, plan, and profile, to the most complex designs for the most experienced, such as house plans, buildings, and other structures. For this, we have an intuitive and powerful user interface. Available for all current operating systems from its website. It allows having several tabs open at the same time with different projects, greatly facilitating the simultaneous management of tasks.