You can stream to YouTube while you’re live on Twitch by multistreaming. The simplest setup is to use a service or plugin that sends your stream to both platforms at once, or use OBS with a multi-output method.

Easiest setup

  1. Create accounts on both Twitch and YouTube.
  2. Connect both accounts in a multistream service like Restream, or set up OBS with a multi-output plugin.
  1. Copy the stream key or connect each channel as instructed by the service.
  1. Open OBS, set your scenes, and start streaming once. The service sends the same broadcast to both platforms.

What to watch for

  • Bandwidth: streaming to two platforms can use more upload bandwidth if you’re sending separate outputs yourself.
  • Chat: Twitch and YouTube chats stay separate unless you use a tool that combines them.
  • Platform rules: some streamers prefer to make Twitch the “main” stream and mirror to YouTube for discovery.

Best practical option

If you want the fastest path, use a multistreaming service with OBS. If you want full control and lower platform dependency, use a multi-RTMP plugin in OBS and send to both destinations directly.

Example

A typical workflow is: set up your OBS scenes, connect Twitch and YouTube, then press Start Streaming once. After that, both audiences see the same live broadcast at the same time.

Need a step-by-step setup for OBS, Restream, or Streamlabs?