Phazer

Phazer is a small traffic generator which helps you testing your own network and stability of your Web or homeserver. Perfect for Webmasters and hosts. Simply enter a path to a file on a server and Phazer generates traffic between you and the server using the file you entered. Phazer uses the HTTP protocol, which allows you to use any file on a Web server anywhere on the Web. Please keep in mind that Phazer should be only used for your own Web server.

Limitations:

Limited functionality