Senff - a11n

<h4>Summary</h4>
<p>The Smooth Page Scroll Up/Down Buttons plugin for WordPress adds buttons to every page of your site, that can be used to (smoothly) scroll up or down exactly one screen/page at a time. This can be particularly handy for pages with a lot of text/content, or in cases wherever a browser’s scrollbar is just not good enough (or not present at all, like on tablets) to enable one-click, one-screen scrolling.</p>
<p>BONUS BUTTON! Optionally, you can add a “Back to top” button, that will take the visitor right back to the very top of the page.</p>
<p>No knowledge of any coding (HTML, CSS, JavaScript, PHP) is required at all.</p>
<h4>Features</h4>
<ul>
<li><strong>Button positioning</strong>: choose between three options of where you want the buttons to appear — next to eachother at the bottom right, on top of eachother at the bottom right, or one at the top right and the other at the bottom right.</li>
<li><strong>Scrolling distance</strong>: scroll a full page with each click, half a page, or however far you want.</li>
<li><strong>Button size</strong>: choose the size of the buttons.</li>
<li><strong>Scrolling speed</strong>: set the speed at which pages should scroll from one page to another.</li>
<li><strong>‘Back to top’ button</strong>: optionally, include an additional button that takes the user back to the very top of the page.</li>
</ul>


Smooth Page Scroll Up/Down Buttons

Smooth Scroll Page Up/Down Buttons adds buttons that enables your site visitors to easily scroll up or down one screen/page at a time.

Digital Liberation

Anand Kumar

jamify

<p>This plugin makes your anchor links to scroll smooth and adds a scroll to top button in the lower-right corner of long pages. The scroll to top button appears after some scrolling and hides automatically reaching top. This plugin is based on cudazi’s plugin “Scroll to Top”, and you may use this plugin if you need “Scroll to top” feature.</p>
<h4>Features include:</h4>
<ul>
<li>Smooth Scroll for all anchor links.</li>
<li>A back to top button on right hand side.</li>
<li>Support RTL</li>
<li>No unnecessary menu item in WordPress Dashboard.</li>
<li>Easy customization with some css/js code edit.</li>
<li>All CSS and JS files are compressed to score high in Google Page Speed score.</li>
<li>Now change easing effect with the help of jQueruyUI</li>
</ul>
<h4>Important Links:</h4>
<ul>
<li><a href="https://wordpress.org/support/plugin/jquery-smooth-scroll/?utm_source=plugin&utm_medium=link&utm_campaign=jss_plugin_link" rel="ugc"><strong>Support</strong></a></li>
<li><a href="https://github.com/anandkumar/jquery-smooth-scroll" rel="nofollow ugc"><strong>Github Repo</strong></a></li>
<li><a href="https://github.com/anandkumar/jquery-smooth-scroll/issues?utm_source=plugin&utm_medium=link&utm_campaign=jss_plugin_link" rel="nofollow ugc">Contribute</a></li>
</ul>
<p>NOTE: The plugin might not be compatible with some other plugins. If there are limited number of tabs or anchor links we may exclude them manually. Please report compatibility issue on the <a href="https://github.com/anandkumar/jquery-smooth-scroll" rel="nofollow ugc">GitHub repository</a>. You are welcomed to contribute towards the development of the plugin.</p>
<p><span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/2gsdGOPfqF0?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>


jQuery Smooth Scroll

Works like a charm. And they will help you with small errors. Highly recommended. 

Great asset

Activate the plugin for smooth scrolling and smooth "back to top" feature.

Smooth Page Scroll Up/Down Buttons vs jQuery Smooth Scroll