⚛️GPFF-Paint
MS Paint, but in 3D, and with atoms instead of pixels. Relax sketches into molecules with GPFF.
All tool logic runs in Python; the browser only draws.
The model: GPFF, the Generative Pseudo-Force Field (paper). Trained on QM9, so it knows H, C, N, O and F molecules of up to 29 atoms.
Mouse: left = tool · right-drag = orbit · middle-drag = pan · wheel = zoom · Ctrl+wheel = plane depth · Alt = background colour.