hypercoder

CodeBlock is a free WordPress plugin that enables visitors to copy programming code with a single click. It features:
<ul>
<li>A simple lightweight plugin in with no dependencies; the whole package consist of a PHP, a JavaScript and a CSS file (1.92KB)</li>
<li>Makes use of short-codes</li>
<li>Works with stylized code. That is, it only copies the code not the underlying HTML elements</li>
<li>Spam free. It will never bag (ehm, bug) you for ratings, permissions…etc.</li>
</ul>

HyperCoder CodeBlock

CodeBlock is a free WordPress plugin that enables visitors to copy code blocks with a single click.

hashsalacop

A simple plugin that allows you to copy or cut paragraphs from your site’s main content to the clipboard to use elsewhere. or you can customize depends on your needs
Plugin Features: 
1. Copy Content and paste 
2. Copy and Cut content and paste 
3. Its easy to use. 
4. Tested up to latest WordPress

CLIPBOARD

A simple plugin that allows you to copy or cut paragraphs from your site’s main content to the clipboard to use elsewhere.

HyperCoder CodeBlock vs CLIPBOARD