This is an international platform for tree allometric equations. It is the first worldwide web platform designed to facilitate the access of the tree allometric equation and assessment of the tree biometric characteristics for commercial volume, bio-energy or carbon cycling. The web platform presents a database containing tree allometric equations, software called Fantallomatrik to compare and select the equations and documentation for developing new tree allometric models, improving the evaluation of tree and forest resources and improving knowledge of tree allometric equations.