goSPL (Global Scalable Paleo Landscape Evolution) is an open-source, GPL-licensed library providing a scalable parallelised Python-based numerical model to simulate global-scale landscapes and sedimentary basin evolution. It implements river incision, sediment transport and deposition, hillslope diffusion, marine deposition, lake/depression filling, sediment compaction, glacial ice accumulation/erosion, flexural isostasy, and time-varying tectonic and climatic forcing over unstructured PETSc DMPlex meshes running under MPI.