profpanda

This plugin allows you to create a new widget to your Dashboard, choose the postion of the widget (Core or Side) and even the priority to show your widget at the very top of the list .
Features:
<ol>
<li>Allow to create new widget area to your Dashboard</li>
<li>Support HTML codes (and of course, CSS styles)</li>
<li>You can choose the position of the widget, Core (the left) or Side (the right).</li>
<li>You can mark down the Priority option to make your widget be at the very top of the list on the Core position.</li>
</ol>

ProfPanda Custom Dashboard Widget

This plugin will be usefull for all purposes. And will get better in the next version when it will allow you to create more than one widget areas on Dashboard.

Usefull for all purposes

This plugin allows you to create a new widget to your Dashboard.

Rob Bakker

An easy, small, free and fast plugin to add/inject HTML, CSS or JavaScript code to the <head> HTML part of your site.
Some examples of possible use cases for this plugin are:
<ul>
<li>Injecting custom CSS into the <head>.</li>
<li>Inserting a <meta> tag into the <head> for Google Search Console validation.</li>
<li>Adding Google Analytics JavaScript into <head>.</li>
<li>Insert the <base> tag into <head&gt, to set a default URL and a default target for all links.</li>
<li>Adding device-optimized favicons by using the <link> tag</li>
<li>Injecting content with the <template> tag into <head>, in order to initially content from the user (and display it later using JavaScript).</li>
</ul>

Add HTML, JavaScript and CSS to <head>

A simple, small, free and fast plugin to add/inject HTML, CSS or JavaScript code to the <head> HTML part of your site.

ProfPanda Custom Dashboard Widget vs Add HTML, JavaScript and CSS to <head>