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How to stream on Twitch and X at the same time

Your followers on X see a live stream right in their timeline, which makes it a good second home for a Twitch stream: people who'd never open Twitch can drop in from a post.

Here are two ways to do it with Multistream: Multistream Cloud, where OBS uploads once and the cloud sends the stream to Twitch and X, and the free Multistream app, where your PC sends both copies.

Method 1: Multistream Cloud (one upload for every platform)

Multistream Cloud takes one stream from OBS and sends a copy to Twitch and X, and to up to 12 platforms in all. Your internet only uploads that one stream, so adding a platform doesn't need a faster connection. It comes with Pro, $10/mo.

  1. Create your Multistream account, then get Pro on your Account page.
  2. In the Studio, step 1 (Pick platforms), click Add a platform and add each one:
    • Twitch: click Sign in with Twitch, then Authorize in the Twitch window. Multistream reads your stream key for you.
    • X: paste the server and stream key from a Source you create in X's Live Studio.
  3. Install Multistream for OBS (Windows 10 or 11, OBS 31 or newer) and open OBS. The Multistream dock opens on the right.
  4. In the dock, click Sign in with your browser and approve it.
  5. The dock's pre-flight check looks at your OBS settings, Multistream Cloud, your platforms and where OBS sends. If OBS isn't sending to Multistream yet, click Point OBS at Multistream.
  6. Click Go live on 2. After a 3, 2, 1 countdown, OBS starts streaming and Twitch and X go live.

If OBS or your internet drops, Pro keeps your platforms live on your BRB clip for up to 30 minutes, and when OBS is back you carry on in the same broadcast, with the same chat. Turn it on under Disconnect protection.

Method 2: the free Multistream app (from your own PC)

The free Multistream app for Windows can send the copies from your own PC instead. Your upload then carries one copy for each platform, and if your PC's internet drops, your platforms drop with it. Run the app's Speed test first to see what your connection can carry, or work it out with the free upload calculator.

  1. Download the Multistream app for Windows 10 or 11 and open it.
  2. Go to Multistream → Go live and set Where the relay runs to This PC.
  3. Open Setup guide and click Add a platform for Twitch and X. Twitch, YouTube and Kick accounts you've connected in the app add in a click; the others take their stream key.
  4. Install Multistream for OBS and open OBS. Without Pro, the Multistream dock sends your stream through the app on this PC, so keep the app open.
  5. Click Go live on 2 in the dock. Your PC uploads one copy for each platform.

Good to know for Twitch and X

Getting X's server and key. X's Live Studio (at studio.x.com) takes a stream from any RTMP software. Create a Source there and it shows the server address and the stream key to paste into Multistream. If Live Studio doesn't offer going live on your account, X hasn't enabled it for you yet.

Twitch's simulcasting rules. Don't point Twitch viewers to your X stream (in the title, links or chat commands), keep Twitch's stream at least as good as X's, and don't show posts or replies from X on your Twitch stream. Multistream's pre-stream check reminds you when Twitch is on your list.

One picture for both. Twitch and X both show a 16:9 picture, so the stream OBS already sends works for both.

Check your upload before going free. With the free app, your upload carries a full copy for each platform. Run the app's Speed test or the free upload calculator first; with Pro, OBS uploads one stream however many platforms you add.

Questions, answered

Can you stream on Twitch and X at the same time?

Yes. X's Live Studio takes a stream from streaming software, and Twitch allows simulcasting under its simulcast rules.

Where do I find my X stream key?

In X's Live Studio: create a Source, and it shows the server address and stream key.

Do I need two copies of OBS?

No. OBS sends one stream to Multistream, and Multistream sends it to Twitch and X.

Can I do Twitch and X for free?

Yes, with the free Multistream app, which sends both copies from your PC, so your upload carries both. With Pro ($10/mo), Multistream Cloud takes one upload and sends both copies for you.

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