To multistream to Instagram Live and YouTube, prepare each destination first, connect both to a hosted relay, then send one programme feed from OBS. The relay routes that feed to both platforms, but you still need to complete Instagram’s separate Go Live step after its preview appears.
This is a practical route when you want one production rather than two separately configured outputs. Check that Live Producer and a current stream key are available on your Instagram account, that YouTube streaming is enabled, and that the relay currently supports both destinations before you schedule an event.
Prepare Instagram Live Producer
Use Instagram on a desktop browser and look for the Live video option under Create. Restream’s instructions dated 22 April 2026 describe setting a title and audience there, then copying the stream key provided by Live Producer. The precise controls or availability can change, so confirm the workflow in your account before relying on it on event day.
Restream’s published guidance says the workflow requires a Professional account and describes public accounts with at least 1,000 followers as eligible to go live. It also states a one-hour Instagram Live limit. These are Restream’s instructions, not a guarantee that every account has access or an independently verified statement of Meta policy. Check Instagram’s current account interface and help material; do not plan a broadcast on the assumption that a stream key will appear for every user.
The key is for the Instagram destination, not a general account password. Treat it as a credential: copy it directly into the relay’s Instagram destination field and do not paste it into a public document, chat, or stream overlay. Restream says to refresh the key for each new stream. That means an old saved key should not be assumed to work next time.
Keep the Instagram Live Video tab open while preparing and running the broadcast. According to Restream, the encoder feed first produces a preview, and you then click Go Live in Instagram. Merely starting OBS or the relay does not complete that last step. This distinction matters if you are testing at the venue or handing the controls to someone else: agree who watches the preview and who confirms the Instagram broadcast.
Prepare YouTube live streaming
Check YouTube Studio before connecting a relay. The channel must have live streaming enabled, and the Google account used for the connection must be the channel owner if following Restream’s documented connection instructions. A manager or editor may be able to work in Studio but may not be the right account to authorise the relay. Confirm access with the owner in advance rather than discovering the mismatch during setup.
Restream’s YouTube guide says first-time streaming requires phone verification and a 24-hour wait after enabling the feature. Treat that as a planning point from Restream’s current guide, and verify the status in YouTube Studio because eligibility and interface details can change. A channel that has never streamed should not make its first attempt minutes before a public event.
Decide whether YouTube should be public, unlisted, or private during the test, then set the intended visibility for the real broadcast. Check the title, description, thumbnail, audience settings, and any scheduled event details in Studio. The destination connection and the public-facing YouTube listing are related but distinct tasks: a relay can be authorised without the event details being ready for viewers.
YouTube’s live streaming encoder guidance recommends RTMPS, a secure extension of RTMP, and gives settings by codec and delivery conditions. Its recommendations include H.264, H.265 (HEVC), and AV1 options, support up to 60 fps, a recommended two-second keyframe interval that should not exceed four seconds, and constant bitrate encoding. Do not interpret these as a single universal recipe for every computer, network, relay, or programme. Pick settings compatible with the relay and both receiving platforms, then test them.
Restream’s YouTube guide says streams under 12 hours are archived, while it does not state a YouTube duration limit. If you are making a long programme, check current YouTube guidance and the intended archive behaviour rather than assuming that a relay’s ability to keep sending means YouTube will preserve the full event as a replay.
Connect both destinations to a hosted relay
A hosted relay is the clearest documented way to send one incoming encoder feed to both platforms. In Restream’s documented workflow, you add Instagram as a destination using the Live Producer stream key and connect YouTube through account authorisation. The names of buttons can change; follow the service’s current help instructions and check that both destinations show as connected before moving to OBS.
This arrangement centralises the routing, but it does not remove destination-specific preparation. Instagram’s key can need refreshing, YouTube authorisation can expire or be made under the wrong account, and the relay’s current plan or destination rules may affect what you can send. Check the relay’s own current page for supported destinations and plan conditions; no plan or destination limit should be assumed from an older tutorial.
Restream documents use with OBS and other major streaming software. Its Instagram Live instructions cover the key-based connection, while its YouTube instructions describe authorising a YouTube channel. Read the current destination instructions as you work, especially if the screens differ from an earlier setup.
There is an advanced alternative: output to multiple RTMP destinations directly from software with a suitable extension or plugin. OBS’s compatibility page historically listed a Multiple RTMP Outputs plugin for certain OBS Studio 28 variants, but that listing is dated August 2022 and is not a current installation guide. Unless you have checked compatibility with your present OBS version and operating system, use the hosted-relay path rather than building an event around an old plugin reference.
A relay also makes the operational hand-off easier to describe: OBS sends one feed; the relay distributes it; each platform still has its own viewing and live-state controls. When the problem is keeping a prepared video broadcasting while your own computer is switched off, StreamNeo addresses that separate continuous-stream task, but it is not the tool for sending an interactive live production to Instagram and YouTube.
Copy destination credentials carefully
Work through one destination at a time and label what you copy. For Instagram, copy the current stream key from Live Producer into the relay’s Instagram destination. For YouTube, use the authorisation flow for the correct channel-owner account. Do not confuse a platform’s destination details with OBS’s own stream destination settings; in the hosted model, OBS generally sends to the relay, not separately to the two platforms.
A simple credential check avoids several preventable errors. Before you leave the setup screen, verify that the destination name is correct, that the relay indicates a connected or ready state, and that no key has been truncated or pasted with extra spaces. Never show either credential in a screen recording or share it in a public production note. If a credential has been exposed, replace or revoke it using the platform’s available controls and reconnect the destination.
YouTube’s developer documentation for RTMPS explains that RTMPS tunnels RTMP through SSL and that the protocol, server, application path, and port need to be correct. In a hosted relay flow, the relay provides the upstream target details to OBS, so you usually should not copy YouTube’s direct-ingest settings into OBS as well. Follow the destination model shown by the relay; mixing a direct YouTube output with the relay output can create a different, unintended setup.
Make a note of which account owns each destination and who can refresh its credentials. For a small business, that might be the person responsible for the Instagram account and the person who controls the YouTube channel. If those are different people, arrange access and a test together rather than passing stream keys around by email. Account permissions and platform access are part of the setup, not a last-minute technical detail.
Send one feed from OBS
Once both destinations are connected in the relay, configure OBS to send its single output to that relay using the server and stream key supplied for the encoder connection. The relay’s instructions should identify where those values belong. Avoid setting up separate outputs to Instagram and YouTube in OBS when following this hosted route; the point is to prepare the destinations centrally and send one feed.
Build a scene that survives both shapes of screen. Restream’s Instagram settings guidance recommends a 9:16 aspect ratio and 720×1280 resolution, but says vertical is not required. It recommends 30 fps, with 60 fps as the stated maximum, a video bitrate range of 2,250–6,000 Kbps, and stereo audio at 44.1 kHz with a maximum audio bitrate of 256 Kbps. These are figures in Restream’s guidance, not a guarantee that the same output is optimal for YouTube or your connection.
Instagram’s vertical orientation creates a real layout choice. If Instagram is the priority, design around a vertical canvas and ensure text, faces, and key graphics remain in its safe visible area. If YouTube viewers need a wider composition, avoid placing essential content at the edges that may be lost or made too small in a vertical presentation. The supplied documentation does not establish automatic per-platform reframing, so do not assume the relay will create two independently composed outputs for you.
YouTube’s encoder guidance is broader and varies with codec and delivery conditions. A compromise can be a simple central composition that remains legible in both destinations, but that may waste space on one of them. If you need distinct vertical and landscape productions, investigate whether your current software and relay explicitly support separate outputs and verify that behaviour in a test; do not infer it from the fact that both destinations are connected.
For an existing OBS workflow, the guide to resuming a 24/7 YouTube stream after an internet outage is useful background on reconnect behaviour, although a one-off multistream has separate destination steps. Likewise, if the programme is a repeated visual loop, check how to loop a video in OBS without a gap before building a scene around a file that must repeat cleanly.
Test both destinations before going live
Run a private or otherwise controlled test before inviting viewers. Check the picture, sound, orientation, overlays, and any captions or graphics on both platforms independently. A healthy preview in OBS proves only that OBS is producing a feed; it does not prove that YouTube is authorised, that Instagram has accepted its key, or that the final composition is readable on a phone.
For Instagram, start the encoder and wait for the Live Producer preview. Check that it shows the intended picture and sound, then click Go Live in Instagram only when you are ready for the actual broadcast. Keep the Live Video tab open. If you are conducting a rehearsal rather than a public stream, confirm which audience setting is available in the account and how that choice affects who can see it; do not assume a private test mode exists in every account.
For YouTube, watch the destination in Studio and, where appropriate, from a separate viewer account or device. Confirm the correct channel and event, visibility, audio/video sync, and whether the live appears as expected. If YouTube has an ingest or health status indicator, use it as an additional signal, not as a substitute for watching the programme itself.
Keep an event checklist with a named operator for each action: confirm both destination connections, start OBS, inspect the relay’s destination status, check the Instagram preview, press Instagram Go Live, and verify YouTube is receiving the programme. This avoids the common hand-off gap where one person believes the encoder start has made both services public, while another is waiting for a separate platform confirmation.
Plan the end in the reverse order from what might seem intuitive. Restream warns that stopping only the encoder or relay can leave the Instagram video frozen for four minutes. End the live in Instagram first, confirm it has ended, then stop OBS or the relay. Check YouTube’s ending separately, particularly if you want the stream archived. A deliberate end sequence is part of the test, not an administrative afterthought.
For a long-running YouTube-focused channel, composition and duration planning are distinct from simultaneous delivery. The comparison of YouTube playlist streams and live encoders can help clarify that difference, while OBS settings for a 1080p YouTube live stream from India offers a separate reference for a YouTube-oriented output. Neither replaces checking the current Instagram and relay requirements for a dual-destination event.
Choose the route that fits the production
A hosted relay is suited to a producer who wants one encoder feed and a central place to manage both destinations. Direct multi-output from software may suit an experienced operator who needs granular control and has confirmed current compatibility, but it adds another layer to test and maintain. Neither route changes the account requirements imposed by Instagram or YouTube.
| Decision | Hosted relay | Direct multi-output software |
|---|---|---|
| Destination setup | Connect channels in the relay; Instagram uses its key in the documented workflow, while YouTube uses account authorisation | Configure multiple outputs in software or an extension, with destination details handled in that workflow |
| What OBS sends | One feed to the relay | Potentially separate feeds or outputs, depending on current software support |
| Main checks | Destination support, current plan conditions, account authorisation, key validity | Compatibility with the current OBS and operating system versions, output behaviour, and each platform’s ingest details |
| Best fit | A simpler central routing workflow | An operator prepared to validate and maintain a more technical configuration |
This is not a performance ranking. The available guidance establishes a documented hosted route and historical plugin availability, not a universal claim about latency, quality, reliability, or cost. Compare current terms and features directly, and choose based on who will operate the stream, whether separate compositions are necessary, and how much setup you can test before the event.
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FAQ
Does starting OBS make Instagram Live public?
No. OBS or the relay sends the feed, but Instagram Live Producer must receive it and show a preview. Restream’s instructions say to click Go Live in Instagram after checking that preview.
Can every Instagram account use this workflow?
Do not assume so. Restream’s April 2026 guide describes a Professional account and public-account eligibility conditions, but availability can vary; confirm Live Producer and a usable stream key in the account you intend to use.
Do I need two OBS outputs?
Not for the hosted-relay workflow described here: OBS sends one feed to the relay, which routes it to the connected destinations. Separate outputs are an advanced alternative and should only be used after checking current software compatibility and testing the actual behaviour.
How should I stop the broadcast?
End the Instagram live in Instagram first, then stop the encoder or relay. Restream warns that ending only at the encoder or relay can leave Instagram showing a frozen video for four minutes, so verify the platform has ended before shutting down the feed.