This Stream Spigot tool lets you subscribe to your Mastodon timeline and lists in a feedreader such as NetNewsWire, NewsBlur, Reeder or Feedly.
By signing in with your Mastodon account, you enable Masto Feeder to generate feeds under "secret" URLs that will contain the statuses of accounts that you follow.
To get started, sign in to your Mastodon instance to allow Masto Feeder access to your timeline and lists.