  A common library, TMDlib2, for Transverse-Momentum-Dependent distributions
(TMDs) and unintegrated parton distributions (uPDFs) is described, which allows
for easy access of commonly used TMDs and uPDFs, providing a three-dimensional
(3D) picture of the partonic structure of hadrons. The tool TMDplotter allows
for web-based plotting of distributions implemented in TMDlib2, together with
collinear pdfs as available in LHAPDF.
