In the title compound, C(14)H(13)N(3)O, the benzotriazole ring is oriented at a dihedral angle of 13.43 (4)° with respect to the phenyl ring. In the crystal structure, inter-molecular O-H⋯N hydrogen bonds link the mol-ecules into chains along the b axis. Aromatic π-π contacts between benzene rings and between triazole and benzene rings [centroid-centroid distances = 3.8133 (8) and 3.7810 (8) Å, respectively], as well as a weak C-H⋯π inter-action involving the phenyl ring, are also observed.