LibreCAD - 2D Drafting
https://librecad.org/
https://github.com/LibreCAD/LibreCAD/releases
File Support:
- Save/Open: DXF, CXF, LFF
- Import: DWG, JWW, SHP, PIC
- Export: SVG, PDF, ICO, JPG, PNG, DDS, TIF, BMP, Others…
Pros:
- Optional command line rapid geometry input
- built in calculator accessible by command line
- CAM plugin available - https://github.com/LibreCAM/LibreCAM/
- Available in 30 different languages
Cons:
- Beginners might find it a little difficult to learn (there's controversial opinions about ease of use)
- no support for 3D model creation
- Some versions can be unstable or laggy
'Runs on:

Image from https://wiki.librecad.org/index.php?title=Main_Page