Convert HTML Code Postings for Comments and Blog Posts

Tools to show HTML Code In Blogger Posts and Comments as written here:

Greasemonkey Script

http://www.dopiaza.org/tools/greasemonkey/escapeentities/escapeentities.user.js
Escape html code as Firefox Addon: escapehtmlentitiesintextareas.xpi

others:
Online Convertor - Another Online Convertor - A SWF based Online Convertor