Discharging industrial dyes has led to significant toxicological and environmental issues that pose health risks, therefore, there is a requirement for efficient and economical dye removal technologies. This study examined the adsorption of crystal violet (CV) and eosin yellow (EY) from water using low-cost adsorbents made from date palm endocarp film (DPEF) and chitosan-coated date palm endocarp film (CS@DPEF). Adsorption efficiency was evaluated by varying different parameters in batch experiments. Results showed that pH 6 is optimal for CV adsorption, while for EY it was pH 8. The most effective adsorbent dosage for DPEF was 20 mg, resulting in a high CV removal of 90.05 % within 2 h and the EY removal percentage by 14.5 mg CS@DPEF was 91.34 % within 2 h. The equilibrium times for CV and EY removal were 90 and 120 min, respectively. Adsorption decreased with rising temperature and kinetic data indicated a pseudo-second-order model for both dyes. Isotherm analysis suggested that CV adsorption follows the Freundlich model, while EY follows the Langmuir model. Thermodynamic parameters indicated a spontaneous and exothermic process, with increased randomness for CV and decreased randomness for EY. The films could be recycled up to four times. Real sample tests confirmed the effectiveness of DPEF and CS@DPEF in adsorbing CV and EY. Thus, DPEF and CS@DPEF proved efficient, low-cost adsorbents for treating industrial effluents.