A free program for Android, by Evan He..

Proxy Manager is a handy tool to help you configure proxy servers on your Android phone. It allows you to easily turn on/off the proxy servers for all your apps, as well as to manage them in a way that is not only simple but also very effective. This handy tool is free to use, and its ad-free version is available for Android devices.

You can use Proxy Manager to configure the following types of proxies:

Http (WSS) and Https (SSL)

This tool also allows you to set the following options:

Protocol: the protocol you want to use (Http or Https).