RapidCAM
https://rapidcam.app CNC and laser CAD/CAM for both quick designs and full 2.5D parametric models. Free and runs entirely client side in the browser with no log in required. The file format is open source, designed for LLMs and for source control. The app has a visual diff system built in. I designed RapidCAM for me as none of the available options really met my needs. Happy to see that other people are now using it.