There are free jQuery Scroll to Top plugin which is a small piece of code that lets you add a scroll to top button at the bottom right of your web page.
This will enable your website visitors to scroll easily back to the top of the page while they are browsing. The “scroll to top” button is not initially presented on your web page. When you start scrolling down it shows up.
ScrollUp is a lightweight jQuery plugin for creating a customisable “Scroll to the top” feature which will work with any website.
This plugin is fully customisable through CSS styles that makes it simple to adjust right into your project.
2) JQuery Scroll To The Top
This is a good plugin to create an animated “Scroll to the top” button with jQuery. This is a best way to create a good user experience to make it easy for people to use.
3) Smooth Page Scroll to Top with jQuery
Smooth Page Scroll to Top with jQuery is a lightweight jQuery plugin to create a customisable “Scroll to the top” feature.
Read Also: 10 best jQuery Notification plugin
4) UItoTop jQuery dynamic scroll-to-Top plugin
This is a small jQuery plugin to create a dynamic to-top UI feature.
5) jQuery topLink Plugin
This is a “Scroll to the top” feature plugin which allow you to fade in and out to the top link on any page.