SWServer is a simple Web server. It is also a proxy as well as a tunnel. SWServer features options to delay request response and/or to lower the speed of I/O in order to simulate low speed modem connection. If you develop Web pages, SWServer may be a helpful little tool for you to test your Web pages in a simulated modem environment. Although SWServer does not support all advanced Web server features, it supports interesting ones like file range (for resumable file download) and connetion keep-alive. SWServer may also be helpful if you want to understand the actual data being transferred, especially when SWServer is run as a proxy or tunnel.