Currently, Pretzel fully supports Twitch.
Some of our catalog is also safe for streaming on YouTube. For those tracks, we've created a "YouTube Safe" filter (which is on by default when the player initially launches) that puts all of these "YouTube safe" tracks in rotation.
If you've no intention of uploading your content or VODs to a YouTube channel, you can turn off the "YouTube Safe" filter and unlock the rest of our catalog for use in your Twitch streams.
We currently do not support Facebook, but it is in the works and hopefully we will support that platform as well in the future.