Hiproxy is a lightweight proxy with few dependencies, quick installing, as well as extensible on commands and pages.
Keep used to configure in hosts or Nginx style. Easy to learn, and keep relax in using.
Hiproxy can play the CA role with generated root certificate by itself. It can also generate certificates for each requesting domains.
While hiproxy starts, it opens a new browser window and configure its proxy automatically. Such you would feel free.