How to dual stream on Twitch and TikTok
You can dual stream on Twitch and TikTok through Upstream if TikTok gives your account a stream key. Twitch connects by signing in. TikTok has no sign-in in Upstream: you paste the server URL and key TikTok shows when you go live from a computer.
The bigger decision is shape. Twitch viewers watch in landscape and TikTok viewers hold their phone upright, but one stream has one shape. Read the section below before you build your layout.
- Up to 10 of 30+ supported platforms on one stream
- Free plan works
Before you start
- An Upstream account (the free plan is enough to test)
- A Twitch account that can go live
- A TikTok account that can go live
- Twitch: Twitch allows simulcasting unless you signed an agreement that says otherwise, and the Twitch stream can't be worse than the others. As of October 2026, Twitch's written Terms still bar merged chat from other platforms on the Twitch stream, but Twitch CEO Dan Clancy said in February 2026 that Twitch would no longer take enforcement action for showing combined chat.
- TikTok: TikTok decides which accounts get a stream key, so check that yours has one before the stream. TikTok is vertical (9:16).
Step 1
Create a stream
In Upstream, press Create stream and pick where the video comes from: Multistream from OBS for OBS or any app with custom RTMP, Live Studio to go live from your browser, or Prerecorded and/or 24/7 for uploaded videos.
Step 2
Add Twitch as the main platform
On Select your primary platform, choose Twitch, then sign in with your Twitch account. You can paste the stream key from your Twitch dashboard instead.
Step 3
Add TikTok
On the Set up multistreaming step, press Add stream and pick the platform under Platform. You can add or change platforms later too, in Live Studio under Destinations.
TikTok: pick Custom RTMP, then on a computer, click Go LIVE on TikTok and paste the server URL and stream key it shows. TikTok has no tile of its own in Upstream.
Step 4
Send your video and start
Send the video in: from OBS or another app, paste the RTMP Server URL and Stream Key from Live Studio into it (the OBS guide shows where); from the browser, join Live Studio with your camera. Then press Start stream, and the stream goes out to Twitch and TikTok together.
One stream, one shape
The stream's shape is set under Resolution & Orientation, and every platform on the stream gets it. A landscape stream shows up small or cropped on TikTok. A vertical one, such as 1080p (Vertical), fills TikTok but is narrow on Twitch.
Pick the shape for the audience that matters most, and keep important text and faces near the middle so they survive either way. To give each platform its own shape, run two streams instead (paid plans can run more than one at a time).
Troubleshooting
I can go live on TikTok but there is no stream key
TikTok decides which accounts get a key for streaming from a computer. Being able to go live from the phone app doesn't mean you have one.
OBS connects but TikTok gets nothing
Check that TikTok's server URL and key are in the TikTok destination in Upstream, and that OBS has Upstream's server URL and key. The two pairs do different jobs.
FAQ
Can I stream on Twitch and TikTok at the same time?
Yes, if TikTok has given your account a stream key. Twitch allows simulcasting unless you signed an agreement that says otherwise, as long as the Twitch stream isn't worse. As of October 2026, Twitch's written Terms still bar merged chat from other platforms on the Twitch stream, but Twitch CEO Dan Clancy said in February 2026 that Twitch would no longer take enforcement action for showing combined chat.
Can I combine TikTok and Twitch chat?
Not in Upstream yet. Upstream combines YouTube, Twitch, Kick and Rumble chat into one feed while you stream, so your Twitch chat is in that feed, but TikTok chat isn't included yet. Keep TikTok chat open on TikTok next to it. As of October 2026, Twitch's written Terms still bar merged chat from other platforms on the Twitch stream, but Twitch CEO Dan Clancy said in February 2026 that Twitch would no longer take enforcement action for showing combined chat. For zero risk, keep combined TikTok and Twitch chat off the video.
Set it up now
The free plan includes 24 hours of streaming a month and up to 10 of 30+ supported platforms.