Resample Mesh is a Blender add-on built around interpolation-based geometry editing. Its Resample operator modifies geometry by interpolation to create smoother transitions or reduce the number of polygons, and it offers three interpolation types: Akima, CatmullRom, and Polynomial.
Beyond resampling, the add-on includes several dedicated operators. Smooth cleans up a selected mesh with Uniform or Distance modes, while Unknot redistributes geometry over a selected spline. Distribute evenly spaces vertices along a curve, aligning them to the curve's shape and length. Connect creates edges between corresponding vertices in selected loop sequences, and Circularize arranges vertices into a circular arc using the first and last points as the chord.
The Optimize Mesh operator dissolves edges that don't affect the silhouette, zero-length edges, zero-area faces, and vertices with no connected faces. It's highly customizable, which suits destructive workflows such as retopology or final mesh cleanup. Note that closed edge loops aren't currently supported.