Here are some simple and powerful in-house webmaster tools that I've created to help make your lives a little easier. This list is organized according to popularity.
Easy to use hash generator. Simply input text and method (MD5/SHA-1/CRYPT).
A powerful tool to create a Paypal secure form and button. Input your info and create a form in seconds.
Simply enter and keyword and get tons of keyword ideas.
Create your Htaccess file in seconds
Generate an indestructible password. Specify length, numbers, symbols, etc.
An essential metric for SEO. Check out your website's speed.
Free tool for finding out a domains WhoIs information
Automatically create Google maps images of an address with different scaling options
Create an advanced Sitemap to help index your website faster
Create a robot text file in seconds. Have control over who crawls your site
Determine the number of letters, spaces, words, lines, numbers, and symbols of articles/essays
Powerful tool to generate a site's source code in an organized format
A top-quality link management service to optimize your SEO