BankforNET is an online tool that simulates hydraulic streambank erosion that can be expected in relation to the channel morphology, bank material, vegetation roots and the discharge scenario. It is a is a one-dimensional, probabilistic model which applies randomness to the soil erosion parameters. The model uses an empirical excess shear stress equation, where the effects of roots are implemented by adapting the material dependent critical shear stress to consider the spatio-temporal distribution of root area ratio (RAR), the dynamics of channel geometry, and stream discharge (cf. Gasser et al., 2020). This tool aims to support experts in the quantification of bank erosion hazards and the effects of biological measures.