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To reuse a YouTube Live stream key, create a custom key in YouTube Studio’s Live Control Room and select that same key in your encoder for later sessions. The key is a reusable encoder credential; it does not keep a broadcast running by itself or turn one live event into a permanent stream. If by “always-on” you mean continuous playback, the encoder, video source and connection must also keep running—or you can use a cloud service such as StreamNeo.
What reusing a stream key does—and does not do
YouTube describes a stream key as the credential that tells an encoder where to send its feed and allows YouTube to accept it. A custom key can be saved in your encoder and selected again for future broadcasts. See YouTube’s Manage live stream settings help page.
Reusing the key is not the same as keeping one live event open indefinitely. It does not keep your encoder, video source or internet connection running, automatically restart a stopped encoder, preserve one watch page forever, or guarantee an archive. YouTube’s setup guidance does not establish a universal maximum live runtime or promise a permanent event.
Create a reusable custom stream key
- In YouTube Studio, select Create → Go Live, then open the Stream tab.
- Open the stream-key selector, choose the option to create a custom stream key, enter the preferred settings and save it. Keep the key private: anyone with access to the credential may be able to send a feed to your stream.
- In your encoder, enter YouTube’s stream URL/server and the custom stream key. Select the video and audio sources and configure the output in the encoder.
- Start sending the feed from the encoder. For a scheduled stream, wait for the preview in Live Control Room and select Go live when ready. YouTube’s encoder setup instructions describe this workflow.
- Check the preview and stream health, then verify that the stream is accessible from the channel or watch page and on mobile. Monitor audio and video throughout the broadcast; YouTube recommends continuous monitoring.
For your next session, leave the same custom key selected in the encoder. You can use it again without creating a new key each time.
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Choose between reusing the key and reusing stream settings
These are two related but distinct workflows in Live Control Room:
| Workflow | What carries forward | Use it when |
|---|---|---|
| Keep using a custom key | The encoder credential remains selected for recurring sessions. | You want the same encoder configuration to send future feeds, while managing each session as needed. |
| Reuse settings from a previous stream | YouTube creates another stream with copied metadata, settings and stream key. | You want a new stream based on a prior one, rather than simply selecting the saved key for another session. |
To use the second workflow, open the Manage tab in Live Control Room, select a previous stream and choose Reuse settings. Review the title, description, privacy and other metadata before starting: copied settings do not mean the new stream is the same event or watch page. The steps and distinction are covered in YouTube’s stream settings help.
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What an always-on channel requires
A reusable key solves credential reuse, not continuous operation. For a do-it-yourself always-on setup, the encoder must keep sending a valid feed, the video source must continue playing, and the network connection and power must remain available. If any of those stop, the key alone cannot restore the broadcast. Confirm how your encoder handles interruptions and restarts, and verify the stream in Live Control Room rather than assuming that a successful first session guarantees future continuity.
Plan separately for replay and viewer rewind
- Archive: YouTube says a stream shorter than 12 hours can be automatically archived, but a stream that exceeds 12 hours may not be captured at all. Keep a local recording if a complete replay matters. See Archive live streams.
- DVR: On streams longer than 12 hours, DVR may be limited or unavailable, so viewers may not be able to rewind as expected. This is a playback caveat, not evidence that YouTube universally ends every stream at 12 hours. See Turn on DVR on live streams.
Protect or replace a compromised key
If you believe someone else has obtained the key, reset it in Live Control Room and replace the saved value in your encoder. YouTube says channel owners and managers can reset a key; editors and viewers cannot. Until you update the encoder, it will still be configured with the old credential. Follow YouTube’s key management instructions.
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Or let it run in the cloud
If you want uploaded videos to loop on YouTube without leaving a computer or home connection running, StreamNeo is a cloud option: upload a recording or build a playlist, add your YouTube stream key and go live. It plays uploaded videos, not a live camera feed. Your computer can be off; StreamNeo supports any uploaded quality up to 4K 60fps at one flat price per slot, and automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly access is $9.99 per month. See StreamNeo or start the free day.
Quick Recap
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