Can I run a webserver on an android device? You can make a Web server on your router providing that you rewrite its firmware with a free DD-WRT, Tomato, etc.

You can also run a on a raspberry pi, given that you can run a Web server on any device provided it runs a Linux. Can I run a Web server on an Android device, and if yes, how can I set it up?
Absolutely! You can either:


download a ready made one - like kWS - Android Web Server or
write your own - here's some code to integrate in to your project or just use as is.