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How to Set a YouTube Stream Key in OBS for an Always-On Playlist

Set your YouTube stream URL and key in OBS, then loop a single video or VLC playlist. Follow the steps to start, test, and troubleshoot the broadcast.

By VGSources Team 5 min read
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To run a YouTube playlist through OBS, copy the stream URL and stream key from YouTube Studio into OBS > Settings > Stream, then add a looping media source to your scene. Start OBS streaming; for a scheduled broadcast, you may also need to click Go live in YouTube Studio after the preview appears. This keeps the playlist playing while OBS and the computer remain running—it does not, by itself, restart OBS after a crash or power loss.

Get the YouTube stream URL and key

  1. In YouTube Studio, choose Create > Go live to open Live Control Room.
  2. For an immediate broadcast, use the Stream tab. For a scheduled broadcast, open Manage > Schedule stream and configure it.
  3. Copy the Stream URL and Stream key shown in Live Control Room. YouTube’s workflow and labels may change, so follow the current Studio interface if they differ.

The key acts like the stream’s password and address. Keep it private. If someone else obtains it, reset the key in Live Control Room and replace the saved key in OBS. YouTube says a channel owner or manager can reset it. See Manage live stream settings and Create a YouTube live stream with an encoder.

Enter the key in OBS

  1. Open OBS and go to Settings > Stream.
  2. If OBS offers YouTube as a service, select it and enter the stream key in the key field.
  3. If YouTube is not available as a service, choose the custom server option, paste YouTube’s Stream URL into the server field, and paste the key into Stream Key.
  4. Choose Apply and OK. Start the OBS stream when your scene and playlist are ready.

YouTube’s encoder instructions describe the same connection: “To start streaming, enter your YouTube Live server URL and stream key into your encoder.” Use the URL and key displayed for your broadcast rather than copying a key from an unrelated stream.

Make the playlist repeat in OBS

For multiple videos: VLC Video Source

  1. Install VLC. On 64-bit OBS, the OBS documentation specifies 64-bit VLC for the VLC Video Source.
  2. In OBS, select the scene that should carry the playlist, then add a VLC Video Source.
  3. Open the source properties, add the video files to its playlist, and enable Loop Playlist.
  4. Check the source’s visibility behavior. OBS lists Stop when not visible, restart when visible as the default; if a scene change hides the source, playback may stop and restart when it becomes visible again.

For one video: Media Source

  1. Add a regular Media Source to the scene and select the file.
  2. Enable its Loop property to repeat that file.

Use the VLC Video Source when the broadcast should move through several files; use Media Source for a single repeating file. OBS documents these options in Media Sources (dated 2022-01-11).

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Start the broadcast and verify it

  1. Before relying on the setup, run a test stream. Confirm the video and audio in YouTube’s preview and check Live Control Room’s stream health.
  2. Start streaming in OBS. For a scheduled stream, wait for the preview to appear in Live Control Room, then click Go live unless you configured auto-start.
  3. Watch the stream long enough to confirm that video and sound continue as expected and that the playlist advances or loops. Keep OBS, VLC if used, and the computer running for the broadcast.

YouTube recommends choosing a stream quality your upload connection can sustain reliably. Its encoder guidance for RTMP/RTMPS lists H.264 video, CBR, a recommended two-second keyframe interval (not more than four seconds), and AAC or MP3 audio. Bitrate depends on resolution and frame rate, so consult YouTube’s current table rather than treating one bitrate as suitable for every stream. YouTube recommends RTMPS, which encrypts the feed to and through Google’s servers. A lower latency setting can increase playback buffering; choose latency based on how much real-time interaction matters. See Choose live encoder settings, bitrates, and resolutions and Streaming tips.

Plan for long broadcasts and common failures

OBS connects, but YouTube is not live

For a scheduled stream, connecting the encoder and seeing a preview may not start the public broadcast. Open Live Control Room and select Go live unless auto-start is configured.

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The key is rejected or the feed does not connect

Check that the Stream URL and key came from the intended broadcast, and that the OBS service/server fields match the setup method. If the key was reset or exposed, update OBS with the replacement key from Live Control Room.

The playlist stops or restarts unexpectedly

For a multi-file list, confirm VLC is installed and that Loop Playlist is enabled. If playback changes when scenes switch, inspect the VLC source visibility setting. For one file, confirm the Media Source’s Loop property is on.

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Picture or audio stutters

Check YouTube’s stream health and whether the connection can sustain the chosen quality. Reduce the output target or bitrate if the upload connection is unstable, using YouTube’s current settings table for the selected resolution and frame rate.

OBS or the computer stops

A looping source repeats media; it does not establish automatic recovery after OBS crashes, the computer loses power, or the network goes down. Test any separate restart or power-recovery arrangement you plan to rely on. For a long broadcast archive, YouTube states that streams under 12 hours are automatically archived; it does not make that promise for longer uninterrupted streams. Plan and test how to end or segment a broadcast if you need an archive. The rule is documented in Create a YouTube live stream with an encoder.

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YouTube also advises creators to follow its live-streaming and copyright rules. A playlist containing third-party game footage, music, or other material is not automatically cleared for continuous live use just because you own or can play the files. Review YouTube’s live streaming tips and rights for every item before broadcasting. YouTube notes that expensive equipment is not required to get started; professional-grade hardware encoders are an option for higher-production events, not a prerequisite for this OBS setup.

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Or let it run in the cloud

If you want an always-on YouTube playlist without leaving OBS and a computer running at home, StreamNeo runs uploaded videos from the cloud. Upload a recording or build a playlist, add your YouTube stream key once, and go live. It streams the file as uploaded, up to 4K 60fps, at one flat price per slot; it can recover automatically if YouTube drops the stream. The first day is free with no card. Monthly billing is $9.99 per month.

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