I made a thing: It is a Riemann Zeta function convergence explorer with a 3D surface view. You can open it here: Riemann Zeta explorer.

It lets you sweep the complex plane domain, pick presets (critical strip, first zeros, near the pole), and toggle layers like the critical line, known zeros, reference planes, and divergence region. There are also modes to compare analytic continuation against Dirichlet partial sums or prime zeta partials, plus error and relative error views.

Enjoy!