Tinkercad
Tinkercad is a collection of software tools from Autodesk, designed for complete beginners to create 3D models.
The software is based on constructive solid geometry (CSG), which allows users to create models by combining simpler objects.
Tinkercad is fully accessible through a web browser, thus requiring only an internet connection. The models are compatible with 3D printing, making it an excellent choice for those starting in this field. Its user-friendly interface is also very pleasant for teachers, children, and design enthusiasts.
Source: Tinkercad: The Online Software to Start 3D Modeling - 3Dnatives
Interface
3D design
In the center, there's a workspace that we navigate mostly using a mouse. With the right mouse button, we can rotate the view, use the middle button to adjust side movement, zoom in or out, and the left button to select objects we work with.
On the right side, there are objects used for modeling. These are mostly geometric shapes, but we can also find numbers or letters here. We can create our own object if we can't find one that suits us, or use public designs from other users.
On the left, there's an alternative view control. At the top, we see the angle from which we're viewing the workspace and our model. Beneath that is the home icon, which always restores the original view. Then there's an icon that adjusts the view to a selected object or objects. Below that are buttons for zoom, and lastly, the view toggles.
At the top, there's a toolbar with basic functions. On the left side, the functions (from left to right) include copying, pasting, duplicating, deleting, stepping forward, and stepping backward. On the other (right) side, there are functions (again from left to right) for hiding/showing notes, hiding/revealing objects, grouping, ungrouping, aligning, and mirroring. Finally, there are buttons for import, export, and sharing.