How to Stream to Multiple YouTube Channels at Once

Key takeaways

You don't need a separate account per channel. Creator and Pro both connect up to 3 YouTube channels, and every channel gets automatic broadcasts, thumbnails, stats and auto restart.
Creator runs one stream at a time, and you pick which channel it goes live on. Pro runs up to 3 streams at once, each on its own channel.
For a channel you don't own (a client's), a stream can use a manually pasted stream key instead, with no access to their Google account.
This matters most for agencies and creators managing more than one brand: you get one dashboard, one billing relationship, and independent playlists per stream.
Each stream slot chooses its own destination independently, so switching one stream to a different channel never affects the others.

If you manage more than one YouTube channel — your own plus a client's, or a handful of niche channels under one umbrella — running each one's 24/7 loop from a separate account quickly turns into separate logins, separate billing, and separate playlists to keep straight. The simpler setup: one account, multiple stream slots, each pointed at whichever channel it belongs to.

Why one account, multiple destinations

The common case is an agency or freelancer running a 24/7 loop for a client while also running one for themselves. Both need to be live at the same time, but they don't need to share a channel — they need to share a workflow. One login, one video library per stream, one place to check status, instead of juggling credentials across accounts.

How a stream picks its destination

Each stream slot on an account makes its own choice between two options:

Connected YouTube channel — a channel you own, connected via OAuth. Loopcast creates the broadcast automatically (title, description, thumbnail) for any stream using this option. On Creator and Pro you can connect up to 3 channels and pick which one each stream sends to.
Manual stream key — paste a stream key copied directly from any channel's YouTube Studio, including a channel you don't personally manage. This is what lets one stream go to a client's channel without connecting that client's account to yours at all — you just need the key they'd normally hand to any streaming tool.

Because the choice is made per stream, not per account, one stream slot can be on your own connected channel while a second stream slot on the same account is manually keyed to a client's channel entirely — and switching one doesn't touch the other.

Setting it up

Create a stream slot for each destination. Your plan's concurrent-stream limit determines how many can run at the same time — check pricing if you need more than the base allotment.
For your own channel: connect YouTube once; any stream left on the default "YouTube" setting for that account will use it.
For another channel you own (Creator or Pro): connect it too with "Add another channel" under your YouTube account, then pick it in that stream's "Send to" menu. Loopcast creates its broadcasts automatically, same as your first channel. You can change a stream's channel whenever it's stopped.
For a client's or a different channel: switch that specific stream to manual key mode and paste the stream key from that channel's YouTube Studio (Go Live → Stream). Nothing about your own connected channel is affected.
Build each stream's playlist independently. The video library is shared across the account, but each stream has its own playlist — the same video can appear in more than one stream, or each stream can run completely different content.
Go live on each stream separately. They start, stop, and run independently of each other.

What this looks like day to day

Once set up, each stream shows its own status (live, offline, error) independently. Stopping or troubleshooting one stream has no effect on the others. If a client's channel changes its stream key (a security reset, for example), only that one stream needs a new key pasted in — every other stream on the account keeps running untouched.

Frequently asked questions

Do I need the client's YouTube login to stream to their channel?

No — a manually pasted stream key doesn't require OAuth access to that channel's account. The client copies their stream key from their own YouTube Studio and shares just that string, the same way they'd hand it to any streaming software.

Can I run streams to more channels than my plan's concurrent-stream limit?

Not simultaneously — the concurrent limit caps how many streams can be live at once, though you can still set up more stream slots than that and simply not run all of them live at the same moment.

How many YouTube channels can I connect?

Up to 3 on Creator or Pro. Pro gets one more for every extra stream slot you add. On Creator, one stream runs at a time, so you pick which of your channels it goes live on. On Pro, up to 3 streams run at once, each on its own channel. Brand channels under the same Google login count as separate channels, and you pick the right one when you sign in.

If I disconnect my YouTube account, does it affect streams using a manual key?

No — disconnecting a channel only affects streams set to use that channel. Streams already on manual-key mode for a different channel are unaffected either way.