Herein, we designed and prepared an organic emitter (named as DCzPy) through lab-synthesized carbazole (Cz) to investigate their stimuli-responsive behaviors. A blue-green fluorescence was observed at 490 nm in the pristine powders of DCzPy. Upon anisotropic grinding, DCzPy showed dramatically enhanced emission with a hypsochromic-shift by 33 nm firstly. Further heavily grinding, the emission efficiency decreased, meanwhile, the fluorescence wavelength returned to 490 nm. Analysis from powder X-ray diffraction (PXRD) revealed that the MC behavior of DCzPy was attributed to the solid-state morphology transition from crystal-to-crystal. In contrast, when isotropic compression was exerted on the crystal of DCzPy, a large bathochromic-shifted and weakened fluorescence switching were achieved. In addition, thermo-responsive property of DCzPy was studied under different temperatures and observed an emission color change from green to blue. Given the thermoinduced fluorescence variation, a 2D code was fabricated for information anti-counterfeiting.