How to Connect Twitch to TikTok Live

Connecting your Twitch stream to TikTok Live is one of the most effective ways to accelerate your audience growth, putting your content in front of two massive, dynamic communities at the same time. While you can't directly beam your Twitch feed into TikTok with a single click, you can absolutely simulcast - or broadcast simultaneously - to both platforms. This guide breaks down exactly how to do it, covering both the simple method for beginners and a more advanced setup for technical creators.

Why Connect Your Twitch to TikTok Live?

Before getting into the setup, it's worth understanding why this is such a powerful strategy. Simulcasting bridges the gap between the long-form, highly engaged community on Twitch and the fast-paced, discovery-driven engine of TikTok. It's not just about being live in two places, it's about creating a powerful content funnel for your brand.

• Massive Audience Cross-Pollination: Twitch and TikTok cater to different viewing habits, but the audiences overlap in interest. A hilarious moment in your Valorant match on Twitch could be the exact clip that goes viral and introduces thousands of new viewers to your channel via your TikTok LIVE. You're fishing in two very different, very large ponds at once.
• Boost Your Discoverability: Twitch's discovery tools can be limited, often favoring already-established streamers. TikTok, on the other hand, is built entirely for discovery. Going live on TikTok places you directly into the "For You Page" algorithm, giving you a chance to be seen by countless potential new followers who might've never found your Twitch channel otherwise.
• Maximize Your Content's Value: You're already putting in the effort to stream. Simulcasting ensures that effort gets the maximum possible visibility. Every hour you're live becomes an opportunity to grow on multiple platforms, not just one. It's the ultimate form of content multitasking.
• Funnel Viewers to Your Home Base: Treat TikTok as the top of your funnel. It's where new people discover your personality in bite-sized, engaging moments. During the stream, you can verbally direct them to your Twitch for the full, long-form experience with all the emotes and channel point redemptions. This turns casual TikTok viewers into loyal Twitch community members.

The Two Ways to Connect Twitch to TikTok Live

There is no "Connect to Twitch" button inside of TikTok. The real solution is to use a method that sends your single video feed from your computer to both platforms simultaneously. This is called simulcasting or multistreaming. You have two main options to accomplish this:

1. Restreaming Services (The Easy Way): These are third-party platforms like Restream.io or Castr.io designed to take your one stream and broadcast it to multiple destinations like Twitch, YouTube, and, most importantly for this guide, a "Custom RTMP" destination for TikTok. This is a great user-friendly option that's perfect for most streamers.
2. OBS Multi-RTMP Plugin (The Free, Technical Way): For creators who prefer a more hands-on approach and want to avoid monthly subscription fees, you can use a free plugin for OBS Studio. This plugin lets you send your stream to multiple RTMP endpoints directly from OBS. It requires more technical setup and a more powerful computer but offers complete control.

We'll walk through both methods step-by-step.

Method 1: Using a Restreaming Service (The Easy Way)

Using a dedicated service is the most straightforward route. It streamlines the process and usually offers helpful features like a combined chat window. This guide uses the concept of a generic restreaming service, as the steps are very similar across platforms.

Step 1: Check Your TikTok LIVE Eligibility

Before you do anything else, make sure you can actually go live on TikTok from a desktop. TikTok has requirements, which typically include:

• Being at least 18 years old.
• Having a minimum of 1,000 followers (this number can change based on region and policy updates).

If you don't meet these, you won't be able to get a "Stream Key," which is necessary for this process. Focus on growing your TikTok account with short-form clips first.

Step 2: Sign Up and Connect Your Accounts

First, create an account with a restreaming service that supports Custom RTMP destinations, as this is how you'll connect to TikTok. Once your account is set up, you'll need to link your primary platforms.

• Connect Twitch: In your restreaming dashboard, look for an "Add Channel" or "Add Destination" button. Select Twitch from the list. It will take you through a simple authorization process where you log into your Twitch account and grant the service permission to stream to your channel.

Step 3: Get Your TikTok Stream Key and URL

This is the most critical part. TikTok requires a unique key for every single stream session for security.

1. Open the TikTok app on your phone, tap the '+' button, and swipe to the LIVE option.
2. Look for the option to broadcast from a computer, often labeled "Live Studio" or "Cast on PC/Mac."
3. TikTok will generate a Server URL and a Stream Key. These are the credentials you need. Keep this screen open, as you'll need to copy and paste them in the next step. The key is only valid for a short time.

Step 4: Add TikTok as a Custom RTMP Destination

Now, go back to your restreaming service’s dashboard.

1. Click "Add Channel" or "Add Destination" again.
2. This time, select "Custom RTMP" or a similarly named option.
3. A form will pop up asking for an RTMP URL and a Stream Key.
4. Carefully copy the Server URL from TikTok and paste it into the RTMP URL field.
5. Copy the Stream Key from TikTok and paste it into the Stream Key field.
6. Give the destination a name, like "TikTok Live," and save it.

Step 5: Configure OBS to Stream to the Restreaming Service

Lastly, you need to tell your streaming software (like OBS Studio or Streamlabs) to send its feed to the restreaming service, not directly to Twitch.

1. In OBS, go to Settings > Stream.
2. In the "Service" drop-down menu, select your chosen restreaming platform (e.g., Restream.io).
3. Connect your account, usually by logging in or by using a dedicated stream key provided by the service.
4. Click "Apply" and "OK."

When you hit "Start Streaming" in OBS, your feed will go to the restreaming platform, which will then push it out to both Twitch and TikTok at the same time. You're now simulcasting!

Method 2: Using the OBS Multi-RTMP Plugin (The Technical Way)

This path offers more control and is free, but requires more manual setup and a PC capable of handling the extra processing workload.

Step 1: Install the OBS Multi-RTMP Plugin

Search online for the "multiple rtmp outputs plugin" for OBS. It is usually available on the OBS Project forums or GitHub. Download and follow the plugin’s installation instructions. After installing it and restarting OBS, you should see a new dock window named "Multiple Outputs."

Step 2: Configure Your Main Stream to Twitch

Keep your primary stream pointed at Twitch. Go to Settings > Stream in OBS, select Twitch as the service, and connect your account as you normally would.

Step 3: Add TikTok as a New Output Target

In the new "Multiple Outputs" dock, you are going to add TikTok as a secondary broadcast.

1. Click "Add new target."
2. Give it a name like "TikTok Output."
3. Go get your temporary Server URL and Stream Key from the TikTok mobile app, just as described in Method 1 (Step 3).
4. Paste the TikTok URL into the "RTMP Server" field and the key into the "RTMP Key" field.

Step 4: VERY IMPORTANT: Configure Vertical Video Settings

Do not just click "OK." Streaming your horizontal 16:9 game directly to TikTok will look terrible with huge black bars. You must create a vertical format for the TikTok audience. You can do this right from the OBS multi-RTMP plugin while still streaming horizontally to Twitch. Follow these settings adjustments.

• Go to OBS Settings > Video. If you already stream in HD, your base and output resolutions are likely set to 1920x1080. Leave these settings as they are.
• In the "Multiple Outputs" dock, click the "Settings" button next to your TikTok Live target.
• Under the Video tab, check "Get Video Settings From another Source" and select the option for "Different from OBS's Video Settings."
• The options below will become active. Set the encoder to your preferred encoder (like NVENC for NVIDIA GPUs) and change the video resolution to 1080x1920 for vertical HD. You should also set the bitrate here - around 4,500 kbps for TikTok is a good starting point. These settings will only apply to the TikTok-bound feed, your Twitch stream will retain its original 1920x1080 settings.

This does mean your computer is effectively re-encoding the video twice, so it requires a strong CPU and/or GPU to avoid performance issues.

Step 5: Go Live

1. Click "Start Streaming" in the main OBS controls. This sends your stream to Twitch.
2. Then, in the "Multiple Outputs" dock, click the "Start" button for your TikTok target. Your stream is now going to both platforms.

Tips for Successful Twitch-TikTok Simulcasting

Going live is just the first part. Once you're online, the strategy shifts to how to create a good experience for both audiences.

1. Create a Vertical Scene in OBS

Instead of showing a strangely cropped version of your horizontal stream, create a dedicated "Scene" for TikTok. You can place your gameplay feed in the middle, and use the space above and below for your webcam, chat overlays, or other graphics. It looks more professional and makes the content feel native to the vertical format.

2. Engage with Both Chats

This is one of the biggest challenges of simulcasting. To manage both chats, you can use a combined chat solution from a restreaming service or have both chat windows open on a second monitor. Verbally acknowledge both audiences: "Hello TikTok family!" and "What's up Twitch crew!" It makes everyone feel included.

3. Manage Your Bandwidth

Streaming to two destinations requires nearly twice the upload speed. Run a speed test before you go live and ensure your connection can handle at least 10Mbps upload for a smooth, consistent stream.

4. Promote Cross-Platform

During your stream, let your TikTok viewers know they can get the full, detailed experience on Twitch, and tell your Twitch community that you're also streaming on TikTok helping grow your community engagement.

5. Turn Streams into On-Demand Content

The work doesn't end when you go offline. Take the most memorable moments from your stream VOD and edit them into engaging clips for TikTok. Post them with a title like, "Clip from Last Night's Twitch Stream!" This creates a flywheel that funnels viewers back to your live content.

Final Thoughts

Connecting your Twitch to TikTok is an incredibly powerful strategy for any creator, whether you choose the easy path with a restreaming service or the more technical OBS plugin setup. The potential for community growth is huge.

When you're focused on building your platform and your brand, keeping up with posting on top of lengthy streaming sessions can be a huge undertaking. Organizing content and scheduling highlights for TikTok, Reels, and YouTube Shorts is a job in itself. That’s where a great management platform like Postbase can help by helping you schedule and organize your social media from one spot with ease so you can focus on creating the content to begin with.