How to Multistream to YouTube and Facebook at the Same Time (2026)
What is multistreaming?
Multistreaming (also called simulcasting) means broadcasting a single video source to several platforms at once — for example YouTube and Facebook Live simultaneously. Instead of choosing one platform, you reach every audience from one stream.
Traditionally this needed OBS with a restreaming plugin, or a separate PC per platform. A cloud tool does the same thing without any of that: it takes your video once and fans it out to each platform's RTMP endpoint.
How to multistream to YouTube + Facebook (step by step)
- Get your YouTube stream key: YouTube Studio → Go Live → Stream — copy the Stream key (and RTMP URL).
- Get your Facebook stream key: Facebook → Live producer → Streaming software — copy the Stream key. Tip: enable a persistent stream key so it doesn't change.
- In StreamSetu, create a stream and paste the YouTube key as your primary destination.
- Under Extra Destinations, click Add and paste the Facebook key (and any others — Instagram, Twitch, Kick).
- Pick your video(s), choose Loop for 24/7, and click Start. The same video now streams live to every platform at once.
Which platforms can you multistream to?
| Platform | Supported | Notes |
|---|---|---|
| YouTube | Yes | RTMP key from YouTube Studio |
| Yes | Use a persistent stream key for 24/7 | |
| Yes | Via RTMP | |
| Twitch | Yes | Standard RTMP ingest |
| TikTok / Kick / Custom RTMP | Yes | Any RTMP/RTMPS endpoint works |
Does multistreaming use more bandwidth or CPU?
When you run it from the cloud, none of it touches your computer or home internet — the cloud server handles the upload to each platform. Each additional destination is one more outbound stream, so on a cloud plan it simply counts as one more channel. Your PC can stay off the whole time.
Frequently asked questions
Do I need separate accounts for each platform?
Yes — you stream to your own YouTube, Facebook, etc. accounts using each one's stream key. StreamSetu never needs to log in to your accounts; it only uses the RTMP keys, stored encrypted.
Can I multistream a pre-recorded video 24/7?
Yes. Multistreaming works with looped pre-recorded video, so you can run an always-on 24/7 channel on YouTube and Facebook at the same time.
Is multistreaming allowed by YouTube and Facebook?
Yes — each platform receives its own independent live stream via its official RTMP key, which is exactly what they're designed for. Just make sure you own or are licensed to use the content.
How many platforms can I stream to at once?
10+ at the same time — YouTube, Facebook, Instagram, Twitch, TikTok, Kick, LinkedIn and any custom RTMP endpoint.
Ready to go live 24/7?
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