Redirect outgoing requests to a different URL. Your browser will get response with Location header and 307 status code.
Easily modify the body of response comong from server or request going to server using middleman.
Add, remove or override the header in response of request.
Make certain resources teapots. Your browser will get response with 418 status code.
Emulate slow network connection. Your browser will wait for given seconds before getting response.
This app will work on all the devices on the network. Just add middleman app as proxy server in any device on the network.