Tell us more about what you're thinking of building/drawing. I like FreeCAD, but it's also quite complicated, depending on what your goals are.
SketchUp works online.
LibreCAD works but I think it's 2D only.
LibreCAD is 2D only but great for making quick drawings.
you mean like the various CAD software that exists?
what tool to use can depend on what you are drawing.
I use FreeCad as an alternative to Solidworks. It has its own way of doing things... but it's more or less feature complete with respect to designing stuff.
openscad and onshape are some options. openscad is like coding and onshape is closer to typical 3D modeling interfaces.
FreeCAD. It'll do everything, but you have to put some time into understanding it. Fortunately, there's are plenty of YouTube videos when you do get stuck.
Krita is my favorite drawing tool, don't know if that helps, but I like it
FreeCAD is good, but maybe more complicated than you're looking for.
You might want to try draw.io / diagrams.net . It can be used in the browser or as a standalone application
Second draw.io - I've done lots of diagrams with VSCode and the draw.io plugin
kicad is great for electronics designs, cross platform, highly recommend
You may be surprised. Blender + plugin.
If you have an iPad and a little money to spend, Shapr3D is an excellent CAD app
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0