The thiazolo[3,4-a]benzimidazole fused-ring system in the title compound, C14H8N2OS2, is nearly planar, the r.m.s. deviation being 0.0073 Å. The thiazolo-benzimidazole-2-thione system is almost in the same plane as the furan-2-yl-methylene moiety, with a dihedral angle of 5.6 (2)° between the two least-squares planes. In the crystal, adjacent molecules are connected by weak intermolecular interactions (C—H...N and slipped π–π stacking) into a three-dimensional network. The nature of the intermolecular interactions was also quantified by Hirshfeld surface analysis. DFT analysis indicates a good agreement of the experimentally determined and the theoretically calculated molecular structures.

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