20 JavaScript particles

JavaScript particle effects are dynamic visual components that create floating, animated elements to enhance the interactivity and aesthetics of a website. Developers use JavaScript along with HTML5 Canvas, WebGL, or libraries like Particles.js to build responsive, animated particle systems with hover interactions, motion trails, and customizable behaviors. These effects are widely used for landing page backgrounds, interactive web apps, and creative UI designs. Explore a collection of 20 creative JavaScript particle examples that combine motion, interactivity, and modern visual design for immersive web experiences.