Yes, folding knives can be used to cut ropes. Many folding knives have sharp blades that are capable of cutting through various materials, including ropes. It is important to note that the effectiveness of cutting ropes with a folding knife will depend on the sharpness of the blade, the thickness and strength of the rope, and the overall design and quality of the knife.If you frequently need to cut ropes, you may want to consider choosing a folding knife with a blade specifically designed for cutting tasks. Some folding knives have serrated edges that can provide better grip and cutting performance on ropes. Additionally, knives with larger blades and sturdy construction may be more suitable for cutting thicker or tougher ropes.