Direct Connect
This program provides and interface to manually craft HTTP queries to websites and inspect the response in an embedded browser. You can enter a URL and then generate the HTTP request that would normally be sent to the site. You can then tweak the settings to your liking and then send the request.
At the time I wrote this, I was not aware of fiddler, and I was trying to understand the HTTP protocol. Right now, you would probably be better served looking at Fiddler to observe and modify your requests.
Warning: this was developed under Windows XP. With the security improvements in Windows Vista+, the WebView panel in the application may frequently freeze.
Download the source code.
Download the binary.
This program and its source code is licensed under the BSD 2-Clause license.
Last updated sometime in 2006.