In the title compound, C(11)H(13)N(3)O(2), the 1,2,3-triazole ring and the phenol ring form a dihedral angle of 55.46 (5)°. In the crystal, inversion-related mol-ecules associate through pairs of hy-droxy-phenol O-H⋯O hydrogen bonds, giving centrosymmetric cyclic dimers [graph set R(2) (2)(18)]. These dimers are linked into infinite chains along [001], giving an overall two-dimensional network structure parallel to the bc plane through hy-droxy O-H⋯N and triazole C-H⋯N hydrogen bonds.