SmoothScroll is a lightweight, dependency‑free JavaScript library that intercepts internal page links and animates the jump to their targets with an ease‑in‑out scrolling effect. It works across modern browsers (Firefox, Chrome, IE10+, Safari, Opera) and also provides a simple API (`window.smoothScroll`) for programmatic scrolling, making it useful for front‑end developers who want smooth navigation without pulling in jQuery or other large frameworks.