You can broadcast a Facebook Live stream to YouTube simultaneously using streaming software or Facebook's built-in tools

Facebook and YouTube don't have a direct native connection that lets you stream to both platforms at once from their interfaces alone. Instead, you use streaming software — programs like OBS Studio, Streamlabs, or XSplit that sit between your camera or screen and both platforms. The software captures your video source, then sends it to Facebook and YouTube at the same time. This is called multi-platform streaming or simultaneous streaming.

The most common setup for beginners is OBS Studio (free, open-source) paired with your Facebook and YouTube stream keys. A stream key is a unique code each platform gives you that tells the software where to send your video. You paste these keys into OBS, start your broadcast, and both platforms receive the same live feed in real time.

The trade-off is that you lose some platform-specific features — Facebook Live's interactive tools like polls and donations work differently or not at all when you stream this way. But you reach both audiences from a single camera or screen capture, which saves setup time and keeps your message consistent.

Key Takeaways

  • OBS Studio is free software that lets you send one video stream to Facebook and YouTube simultaneously using their stream keys.
  • You need to generate a stream key from both Facebook and YouTube before you start — these are unique codes that tell the software where to send your video.
  • Multi-platform streaming disables some Facebook Live features like polls and reactions, but reaches both audiences from one broadcast.
  • Streamlabs and XSplit are paid alternatives that add templates and easier setup, but OBS Studio handles the core task at no cost.
  • Your internet upload speed must support both streams — generally 5 Mbps or higher for 1080p quality to both platforms.

Setting up OBS Studio for Facebook and YouTube streaming

Download OBS Studio from obsproject.com (Windows, Mac, or Linux). Install it and open the program. On the left side under "Sources," you'll add what you want to broadcast — your webcam, a screen recording, or an image. Click the plus sign, choose "Video Capture Device" or "Display Capture," and select your source.

Next, you need your stream keys. Log into Facebook, go to your Page (not your personal profile), and click "Live" in the left menu. Click "Go Live," then look for "Stream Key" or "Use Streaming Software" — Facebook will show you a long string of characters. Copy this entire key and paste it somewhere temporary like a text file. Do the same for YouTube: go to youtube.com, click your profile icon, select "Create a new live event," and find "Stream Key" under "Stream Settings." Copy that too.

Back in OBS, click "Settings" (bottom right), then "Stream" on the left. For "Service," select "Facebook Live." Paste your Facebook stream key into the "Stream Key" field. Click "OK." Now you need to add YouTube as a second destination. This requires a plugin or a workaround: the simplest method is to use Streamlabs (paid, but has a free tier) or to use OBS's "Custom" service option and manually configure YouTube's RTMP server address. For most users, switching between platforms or using Streamlabs is simpler than the custom setup.

Using Streamlabs as an easier alternative

Streamlabs (streamlabs.com) is built on top of OBS and adds a visual interface that's easier for beginners. The free version lets you stream to multiple platforms at once. Download Streamlabs, sign in with your Facebook and YouTube accounts (it asks for permission), and connect both platforms in the settings.

In Streamlabs, add your video source the same way — webcam or screen — and click "Go Live." The software shows you both Facebook and YouTube in a single dashboard. You can start and stop both streams together, see chat from both platforms side by side, and monitor your viewer count on each. Streamlabs also includes overlays, alerts, and scene transitions that OBS requires you to build yourself.

The paid version ($9.99 per month) removes ads and adds features like automated clip creation and better analytics. For someone streaming regularly to both platforms, Streamlabs often saves enough setup time to justify the cost, but the free version handles simultaneous streaming without limits.

Generating stream keys from Facebook and YouTube

Your stream key is how each platform knows the video is coming from you. Facebook generates a new key each time you start a live stream, so you'll repeat this step before each broadcast. Go to your Facebook Page, click "Live," then "Go Live." You'll see "Stream Key" displayed — copy the entire string. This key expires when your stream ends, so you can't reuse it for a later broadcast.

YouTube's stream key is persistent — it stays the same across multiple streams unless you manually regenerate it. Go to youtube.com, click your profile, select "Create a new live event," and go to "Stream Settings." Your stream key appears under "Primary Stream Key." You can use this same key for every YouTube stream, or click "Regenerate" to create a new one if you think it's been compromised.

Never share your stream key publicly. Anyone with your key can broadcast to your channel or page. If you accidentally post it online, regenerate it immediately in both platforms' settings.

Internet speed and quality settings for dual streaming

Streaming to two platforms at once uses more upload bandwidth than streaming to one. Check your upload speed at speedtest.net — click "Go" and wait for the result. The upload number is what matters. For 720p video (standard quality) to both platforms, you need at least 3.5 Mbps upload. For 1080p (high definition), aim for 5 Mbps or higher.

If your upload speed is below 3.5 Mbps, lower your bitrate in OBS or Streamlabs. Go to Settings > Output, and change "Bitrate" to 2500 kbps or lower. This reduces video quality but keeps the stream stable on slower connections. Test your setup by doing a short private stream first — Facebook and YouTube both let you stream to yourself or a test audience before going live to everyone.

Your internet connection also matters. Wired ethernet (a cable from your router to your computer) is more stable than WiFi. If you're using WiFi, position yourself close to the router and avoid streaming during times when others in your home are downloading large files or video calling.

What features work and don't work with multi-platform streaming

When you stream to both platforms simultaneously, some interactive features behave differently. Facebook Live's polls, reactions, and tip donations don't transfer to YouTube, and vice versa. YouTube's Super Chat (paid messages) and channel memberships don't appear on Facebook. You'll see chat from both platforms, but they're separate — a comment on Facebook doesn't show on YouTube.

Both platforms still record your stream automatically, so you can share the video afterward. Thumbnails, titles, and descriptions work normally. The main loss is real-time interactivity — you can't run a poll that works on both platforms at once, and you can't collect donations through the stream itself on both sides.

If interactive features are important to your broadcast, you might choose to stream to one platform live and upload to the other afterward, or stream to one platform and use a screen recording for the other. This takes more time but preserves all the platform-specific tools.

Troubleshooting common streaming problems

If your stream starts but stops after a few seconds, your bitrate is too high for your internet speed. Lower it in OBS or Streamlabs by 500 kbps and try again. If the video is choppy or pixelated, same fix — reduce bitrate. If one platform receives the stream but the other doesn't, check that you pasted the stream key correctly (no extra spaces) and that the key hasn't expired. Facebook keys expire after each stream, so you need a fresh one each time.

If you see "Connection failed" in OBS, your firewall might be blocking the software. Check your computer's firewall settings and add OBS to the allowed programs list. On Windows, go to Settings > Privacy & Security > Firewall > Allow an app through firewall, and check the box next to OBS Studio. On Mac, System Preferences > Security & Privacy > Firewall Options, and add OBS to the list.

If your audio isn't coming through, check that OBS has the correct microphone selected. Click Settings > Audio, and make sure "Mic/Auxiliary Audio" is set to your actual microphone, not "Disabled." Test your microphone in Windows Settings or Mac System Preferences before you go live.

Frequently Asked Questions

Do I need a powerful computer to stream to both platforms?

No, but your computer needs to handle video encoding while running OBS or Streamlabs. A computer from the last five years with at least 8 GB of RAM usually works fine. Older machines or those with less RAM may struggle, especially if you're also running other programs. Close unnecessary apps before you stream.

Can I stream from my phone to both Facebook and YouTube?

Facebook and YouTube both have built-in mobile live streaming, but they don't connect to each other through the phone apps. You'd need to use a third-party app like Restream or Castr, which work similarly to OBS — they receive your phone's video and send it to both platforms. These apps usually charge a monthly fee.

What happens if I stream to Facebook and YouTube but they have different video quality?

Both platforms receive the same video file from OBS or Streamlabs, so the quality is identical at the source. However, each platform may compress or adjust the video differently on their servers based on viewer bandwidth. A viewer on slow internet might see lower quality on YouTube than on Facebook, but that's the platform's choice, not yours.

Can I use my existing Facebook Live setup without changing anything?

If you're currently using Facebook's native "Go Live" button, you're not using streaming software, so YouTube isn't receiving your video. To stream to both, you need to switch to OBS, Streamlabs, or similar software. You'll lose the ability to use Facebook's built-in interactive features, but you'll reach both audiences.

Is there a delay between what I see and what viewers see?

Yes, typically 5 to 15 seconds. This is normal for live streaming and happens on both platforms. Facebook and YouTube buffer the video slightly to ensure smooth playback for viewers. You won't notice it during your broadcast, but if you're reading live comments, they'll be responding to something you said 10 seconds ago.