1-(4-Methoxyphenyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one

In the title compound, C10H11N3O2, the triazole ring has a dihedral angle of 11.55 (2)° relative to the benzene ring. The crystal packing is stabilized by intermolecular N—H⋯O and C—H⋯O hydrogen bonds, and by weak π–π stacking interactions [centroid-to-centroid distance = 3.545 (3) Å].