A rope tightener, a knot-free rope tightener for binding articles, is composed of a shell, a rope threading hole, a toothed inclined panel, a gear with a shaft, etc. The main feature of the rope tightener is that the tied articles do not need to be knotted, and it is easy to untie and very convenient to use. This product is made of low-carbon alloy steel, and its surface is coated with environmentally-friendly colored zinc, which makes this product have higher corrosion resistance and practicability.