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This application is aimed for astrophysics researchers and students in the field of brown dwarfs. It follows tabulated data from BT-SETTL brown dwarfs atmosphere models to convert a given age combined with any of effective temperature, mass or spectral type, to several other quantities, including the aforementioned as well as surface gravity, radius and standard J, H, K, W1, W2, W3 near-infrared magnitudes and colors from the 2MASS and WISE surveys.