BEX cooling tracks, Linder et al. 2019
Below, "Bern EXoplanet" (BEX) cooling tracks for planets from 5 Earth masses to 2 Jupiter masses including magnitudes together with the applied filter profiles and Vega spectrum can be downloaded. They were published in E. F. Linder et. al, 2019; Evolutionary models of cold and low-mass planets: Cooling curves, magnitudes, and detectability.
Evaporation valley, Mordasini 2019
This simple Fortran program implements the fit for the luminosity as a function of time of low-mass planets described in Appendix A of Mordasini 2019.