Guide · Multistream

How to multistream to several platforms at once

Multistream means one stream, several platforms. The limit is almost never your PC – it is your upload. Here is how much you need and how to set it up in FabStream.

How much upload do you need?

Plan about 6 Mbit/s per platform at 1080p and keep about 30 % in reserve, because upload speed varies during the day.

ExamplePlatformsStreamUpload with reserve
Twitch + TikTok (Free)2≈ 12 Mbit/s≈ 16 Mbit/s
2 per format (Premium)4≈ 24 Mbit/s≈ 32 Mbit/s
4 per format (Ultra)8≈ 48 Mbit/s≈ 63 Mbit/s

Your connection’s upload is in your provider contract or in any speed test. FabStream’s assistant measures it and sets the bitrate for you.

Set it up in FabStream

  1. Add platforms per format. Settings → Stream → Add platform – Twitch, YouTube, Kick, TikTok LIVE, Instagram Live, Facebook Live or any RTMP server. Choose 16:9 or 9:16 for each.
  2. Connect accounts where you can. With Twitch, YouTube and Kick connected, FabStream fetches the key itself and can set your stream title and category for you.
  3. Let the assistant set the bitrate. Settings → Assistant measures your upload and picks a bitrate that fits all platforms.
  4. Watch the status bar. It shows bitrate and dropped frames per platform; the chat panel shows viewers per platform and the total.

Tips for a stable multistream

  • Use a LAN cable instead of Wi-Fi – Wi-Fi drops cost frames on every platform at once.
  • Pause big uploads and cloud syncs on your network while you are live.
  • Short on upload? Lower the bitrate of the format with fewer viewers first.

Plans and prices: see the plans.

Frequently asked questions

How many platforms can I stream to?

Free: one platform per format (so two in total). Premium: 2 per format, Ultra: 4 per format, Max: 8 per format.

Does multistream cost extra CPU or GPU?

Hardly. Each format is encoded once and the same video goes to every platform of that format – what grows is the upload, not the load on your PC.

Is there a server in between?

No. FabStream sends each stream directly from your PC to the platform – no extra delay and no third party sees your stream. An optional Cloud Relay for a small upload is coming soon.

What happens if one platform drops?

The other streams keep running and FabStream reconnects the dropped one by itself. You can also add or remove a platform while you are live.

Try it on your next stream

Free for Windows 10/11 – no account, no watermark, no time limit.

Download FabStream free