Raw HTML to Quotable HTML Converter Tool

What does it do?

If you want to include samples of HTML (or other source code) on a web page - for example on this site I want to show you the raw HTML - the you need to convert the reserved HTML characters into quotable ones. For example this tool will convert '<' into '&lt;'. If you want to give this a test then past the below HTML into the first box and press convert.
Currently it will convert '<', '>', '"', '&', ', [ and ] symbols.

<A HREF="test.html">This is a test!</A>

Conversions

< = &lt;
> = &gt;
& = &amp;
" = &quot;
' = &#39;
[ = &#91;
] = &#93;