If you need one prerecorded video or playlist to continue as a single YouTube live stream, Castr has the clearer documented workflow. Its help centre describes uploading video, choosing Loop mode and sending the stream to YouTube.
BoxCast documents a different use case more clearly: scheduled Simulated Live rebroadcasts, including recurring broadcasts. That may suit an event schedule, but the available BoxCast instructions do not establish an infinite prerecorded loop on YouTube.
The short answer: Castr has the clearer loop workflow
The important distinction is not simply whether both services can send video to YouTube. It is what happens when the file reaches its end.
A continuous loop keeps the same live broadcast running while the source returns to its beginning. Viewers can join the same ongoing YouTube live stream, rather than waiting for a newly scheduled event. This is the model usually wanted by devotional channels, bhajan stations, lofi streams, study music channels and local information loops.
A scheduled rebroadcast starts a broadcast at a planned time. It may use the same source again later, and it may recur according to a schedule, but each occurrence is not automatically the same uninterrupted live session. That difference affects the YouTube event, links shared with viewers, notifications, analytics and what happens during the gap between broadcasts.
Castr’s official prerecorded-streaming guide documents an upload-and-loop process, while its scheduling guide describes an Infinite Loop mode that sends the video continuously to added platforms. On the evidence available in those guides, Castr is the more direct fit for a continuous prerecorded YouTube stream.
That conclusion is an interpretation of the documented workflows, not a guarantee about every current plan. Castr’s own product information creates a plan-eligibility question, which you should resolve before paying for a tier. BoxCast remains relevant when you want scheduled simulated-live events or already use its wider event workflow, but its reviewed documentation does not prove the exact 24/7 loop requirement.
If you are still deciding whether a hosted service is appropriate, compare the operating model with this guide to YouTube 24/7 streaming services versus OBS. A local OBS setup gives you more direct control, while a hosted workflow can remove the need to leave a computer running overnight.
How Castr describes uploading and looping video
Castr’s help-centre article, dated 8 July 2026, is the clearest source for the basic workflow. It says you can upload videos from a computer or cloud storage, or select recordings already in Castr’s hosting library. You can add multiple videos and reorder them before selecting a scheduling mode. The guide currently describes MP4 as the supported format and says file size and the number of files depend on the subscription.
The workflow therefore supports two common arrangements:
| Requirement | Castr workflow described in its help material | What you should confirm |
|---|---|---|
| One file repeating continuously | Select Loop mode or Infinite Loop, depending on the page wording | Whether the mode is included on your chosen plan |
| Several files in sequence | Add multiple videos and reorder them | Playlist count, total storage and file-size limits |
| One broadcast at a planned time | Use Date & Time mode | Whether it ends after the scheduled material or repeats |
| YouTube output | Add YouTube as a destination | Account connection method and event controls |
| File preparation | Use an MP4 prepared for streaming | Whether your file passes the current upload limits |
Castr’s separate scheduling-modes guide, dated 24 April 2026, describes Infinite Loop as sending the video to added platforms continuously, 24/7. It describes Date & Time as scheduling a start. Those terms map closely to the distinction that matters here: continuous output versus a scheduled occurrence.
The same help material gives recommended recorded-video settings of 1920×1080, 30 frames per second, 4,000 Kbps and a two-second keyframe interval. It also recommends adding 10–20 seconds at the beginning and end of the file. Treat these as Castr’s preparation advice, not as universal YouTube requirements or a promise that every source will behave identically. The Castr guide to recorded-video settings should be checked again before encoding a large library.
For a devotional stream, you might upload a single long bhajan programme and loop it. For a study channel, you might upload several ambience files, put them in order and loop the resulting sequence. In both cases, the practical question is whether the end of the sequence returns directly to its start while the YouTube broadcast remains active.
Do not assume that adding several files creates a playlist with unlimited duration. Castr’s documentation says the relevant limits depend on the subscription. The current number of files, maximum upload size, total storage, concurrent streams and any duration restriction should be confirmed for the exact tier you intend to use.
Add YouTube as a destination
Castr’s YouTube connection guide describes two ways to connect the destination: an API connection or manual entry of a YouTube streaming server and stream key. The latter is familiar if you have used OBS, but the hosted workflow means the source file and destination settings can be prepared without keeping OBS open on your own computer.
The sequence should be treated as two separate checks. First, make sure the correct YouTube channel is connected. Then confirm that the Castr stream is pointed at the intended event or destination before starting the loop. A mistake at this stage can send a test broadcast to the wrong channel, which is particularly inconvenient when a devotional or local-news channel has an established audience.
YouTube still controls the channel-side details. Check the title, description, visibility, thumbnail, category and any restrictions in YouTube Studio. Do not assume that a thumbnail or event setting in a streaming service will automatically produce the final YouTube presentation you want.
A stream key is also not a substitute for checking the live-stream status of the channel. If YouTube has not enabled live streaming, or if the channel has a current restriction, the provider cannot make the channel broadcast successfully. For a broader preparation sequence, use the go-always-live checklist before you make the stream public.
The YouTube destination should be tested with the actual file, not just with an empty configuration. Watch the beginning, the transition at the end of the file and the return to the beginning. If you are using a playlist, check the change from one file to the next as well. A source that plays correctly on a laptop can still expose a bad encode, missing audio track or unexpected black frame when it is sent as a live feed.
What BoxCast documents for rebroadcasts
BoxCast’s Simulated Live guide, dated 28 April 2023, describes a service that can rebroadcast a past broadcast or upload a video as if it were live. It can be scheduled for a future event, sent to destinations used by other BoxCast broadcasts, including YouTube, and set to recur with the same content.
That is useful when your requirement is event-shaped. For example, a community organisation might want the same recorded service to begin every Sunday morning. A small business might schedule a product presentation at fixed times. A station might want separate broadcasts for planned programmes rather than one permanent live event.
The guide also says Simulated Live is not available on all BoxCast plans. That is a feature-eligibility check, not merely an implementation detail. Confirm availability for the particular BoxCast subscription before designing your channel around it.
BoxCast’s documented workflow involves scheduling a broadcast and selecting destinations. It does not, in the reviewed material, describe an Infinite Loop mode that keeps one prerecorded YouTube broadcast active indefinitely. For that reason, do not present BoxCast Simulated Live as a confirmed substitute for a continuous loop without written confirmation from BoxCast for your exact use case.
BoxCast also has a separate pre-roll feature. Its documentation describes a video that loops in the BoxCast embedded player while that player is offline or before an event. That is not evidence that the same video can be sent as a continuous prerecorded live feed to YouTube. The player behaviour and the YouTube broadcast behaviour are different outputs.
The BoxCast pre-roll guidance mentions an MP4, 720p, variable bitrate targeting 1–5 Mbps, H.264 High Profile progressive video and AAC audio at 44.1 or 48 kHz. Those are instructions for the pre-roll feature and should not be treated as universal Simulated Live upload requirements. A source file that meets pre-roll guidance may still require separate confirmation for a scheduled broadcast.
A recurring rebroadcast is not a continuous loop
The words “recurring” and “24/7” can appear close together in a sales conversation, but they describe different operating models.
Suppose a two-hour programme is scheduled to start at 6:00 each morning. A recurring rebroadcast may create one broadcast at 6:00 on each selected day. At 8:00, that broadcast may finish. The next occurrence may begin the following morning, leaving a gap. Viewers joining at 11:00 would not necessarily see the programme, and a link to yesterday’s event would not automatically represent today’s event.
A continuous loop works differently. The same live output remains active after the two-hour programme reaches its end, and the programme starts again. A viewer joining at any point receives the current position in the ongoing stream. That model is usually closer to an internet radio station, a 24/7 forest-sounds channel or a temple livestream built from recorded material.
The difference also matters operationally:
- Viewer access: a continuous broadcast can be discovered and joined at any time, while scheduled occurrences depend on their start and end times.
- YouTube events: recurring broadcasts may create separate events or separate scheduled occurrences. Confirm how the provider handles the event rather than assuming one permanent URL.
- Notifications: scheduled events can involve notifications and reminders in ways that do not apply to an already-running loop.
- Analytics: separate broadcasts can divide viewing data between events, whereas a single continuous event has a different reporting shape.
- Recovery: if a scheduled occurrence ends, the next one may wait for its timetable. A loop workflow is intended to return to the source while the broadcast continues, although you should still test its behaviour after an interruption.
This is why BoxCast’s documented recurring Simulated Live feature should not be described as continuous looping. It may be the better choice for planned replays, but that is a different requirement. If the channel must remain live through the night, ask specifically whether the provider maintains one uninterrupted YouTube broadcast while the source repeats.
For an existing playlist, you may also want to read how to keep a YouTube live stream active between playlist videos. The article addresses the gap problem directly, which is separate from choosing a provider.
Check Castr’s conflicting plan information
Before choosing Castr, resolve a conflict in Castr’s own pages. The help-centre guide says prerecorded streaming is available on all plans and explains Loop mode. The current Castr product page, as displayed when reviewed in October 2026, says prerecorded live is included on every plan but infinite loop is available on Premium and higher.
Those statements do not give you a sufficiently clear basis for purchasing the entry plan specifically for a 24/7 loop. The difference may reflect changing product language, a distinction between uploading prerecorded video and using an infinite loop, or a page that has not been updated in step with the help centre. The practical result is the same: confirm the exact entitlement before subscribing.
Ask Castr to confirm, in writing if possible, all of the following for the plan you intend to buy:
- Is Infinite Loop available on that plan now?
- Can one uploaded MP4 run continuously to YouTube without creating separate scheduled broadcasts?
- Can a playlist loop continuously, or is looping limited to one file?
- What are the current file-size, storage, duration and number-of-file limits?
- How many concurrent prerecorded streams are included?
- Does the plan allow the YouTube connection method you need?
- What happens if the source reaches its end, the destination disconnects or the stream is stopped?
The Castr product page should be checked alongside the help-centre pages, not instead of them. Look for the current plan matrix and the wording attached to your account’s checkout screen. Do not rely on an old screenshot, a general feature summary or a forum answer when your channel depends on overnight operation.
The same caution applies to BoxCast. Its Simulated Live documentation says the feature is not available with all plans. Confirm whether your plan includes it, whether YouTube is an available destination for that plan and whether recurring content behaves as you expect. Neither provider’s general feature name answers every question about limits, event handling or access on an individual subscription.
No independent reliability test or comparative performance figure is established by the product material reviewed here. You should therefore treat “automatic”, “continuous” or similar wording as something to test against the documented workflow, not as proof that your particular file, destination and plan will operate without interruption.
Questions to verify before choosing
Start with the output, not the brand. Write down whether you need one YouTube broadcast that stays active, a set of scheduled events, or both. If your answer is “the same source must return to its beginning while the broadcast remains live”, ask for an explicit confirmation of continuous looping.
Then check the source. Castr’s documented prerecorded workflow currently accepts MP4, but your intended file may be too large or may exceed a plan-specific limit. BoxCast’s pre-roll recommendations cannot be used as a shortcut for Simulated Live requirements. Ask about the exact codec, audio track, resolution, bitrate, keyframe interval and maximum file size for the feature you will use.
Next, check the playlist. A single file is easier to test than a sequence of files, but a devotional, ambience or radio channel may need a library. Confirm whether files can be reordered, whether a playlist can repeat, whether the order is preserved after an edit and what happens if one item fails.
You should also decide how YouTube events will be managed. Ask whether the service creates a new event, uses an existing event or publishes through a persistent destination. Confirm who controls the title, description, thumbnail, privacy setting and start time. If you need one URL on a printed poster or in a WhatsApp group, make sure the chosen workflow keeps that URL useful for the period you expect.
For India-based channels, include the practical overnight checks. Test the source during the hours when nobody will be available to restart it. Check the first transition, audio continuity and the return to the opening frame. If your own laptop, home internet connection or electricity must remain available, that is a different risk from using a cloud-hosted upload workflow.
StreamNeo addresses the specific problem of leaving a personal computer running by letting you upload a video, add your YouTube stream key and keep the broadcast running with monitoring and automatic restart handled away from your desk. It is YouTube-only, so it should be considered only when YouTube is the required destination and you do not need a broader event system.
Finally, keep rights and channel policy separate from technical delivery. A file that loops successfully can still contain music, images or footage that you do not have permission to broadcast. Check the current YouTube policies and your licences before publishing, particularly for devotional recordings, film songs, stock footage and local news clips.
The simplest decision is therefore conditional. Choose Castr when its current plan confirmation explicitly covers the continuous loop, your file and playlist fit its limits, and YouTube is the destination you need. Choose BoxCast when scheduled Simulated Live rebroadcasts fit the programme and you have confirmed the required plan and destination support. Do not choose either on the assumption that a recurring schedule is automatically a 24/7 loop.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Can I loop a video as a 24/7 live stream with Castr?
Castr’s help-centre material describes Loop and Infinite Loop modes for prerecorded video and says the output can be sent continuously to added platforms. That makes it the clearer documented fit for a continuous YouTube stream. However, Castr’s help and product pages conflict on which plans include infinite looping, so confirm the current entitlement before subscribing.
Does BoxCast support continuous looping to YouTube?
The reviewed BoxCast documentation describes scheduled Simulated Live rebroadcasts, including recurring broadcasts, and YouTube as a destination. It does not establish an infinite loop mode for one uninterrupted prerecorded YouTube broadcast. Ask BoxCast to confirm the exact behaviour if continuous looping is essential.
Is BoxCast pre-roll the same as a YouTube live loop?
No. BoxCast describes pre-roll as a video that loops in its embedded player while the player is offline or before an event. That does not prove that the video is sent continuously as a live feed to YouTube.
What should I ask before buying either service?
Ask whether your exact plan supports the required mode, whether one broadcast remains active when the file ends, and what happens when a playlist reaches its last item. Also confirm file limits, concurrent streams, YouTube event handling and whether the destination connection is available on your plan.