Free HTTP Sniffer

Free HTTP Sniffer is a lightweight and straightforward application that detects the URLs of all streams in your local network, by parsing and decoding the HTTP protocol.

You can use it to capture streaming audio and video in real-time mode, for instance. The application supports multiple file types, such as GIF, HTML and JPEG.

Its interface is made from a common window with a plain and simple layout, where all you have to do is select the adapter and sniffer mode (e.g. only addresses sent by this computer, all addresses sent and received by any machine), in order to initialize the scanning procedure.

Results shows the URL along with the source and destination IP and port number for each location. This list can be saved to a plain text document for further scrutiny.

You can open a selected URL and display grid lines, as well as ask Free HTTP Sniffer to automatically set the column size, clear results before a taking new action, and to remove duplicate addresses.

The utility has minimal impact on system performance, running on very low CPU and RAM. It quickly loads the list of URLs and doesn't cause the OS to hang, crash or pop up error messages. Although it has not been updated for a while, Free HTTP Sniffer is stable on newer operating systems.