A service’s video upload limit is not a single number: file size, file duration, library capacity and outgoing broadcast length describe different constraints. Compare each separately, then check how the service behaves during looping, scheduling and restarts before you upload a library for a 24/7 YouTube channel.
For a fair comparison, record the plan tier, the date you checked its terms and whether each limit applies to one file, a whole library or a live event. A long broadcast does not mean that one long file is accepted, and a generous upload cap does not by itself establish that a service can play continuously.
Why “upload limit” can mean several things
When a provider says “upload limit”, first establish what object the limit applies to. A per-file size cap answers how many gigabytes one upload may contain. A per-file duration cap answers how long that one video may run. Neither tells you how many videos you can keep in the service or how long the service can send a live broadcast to YouTube.
Those distinctions matter in ordinary channel work. A bhajan channel might want one large, several-hour recording to run overnight; a study channel might instead want a library of shorter lessons arranged in a playlist. The first case depends heavily on single-file limits. The second also depends on file count, combined storage, playlist behaviour and what happens when a video fails or a schedule ends.
Make a comparison sheet with separate columns for: maximum size per file, maximum duration per file, total library storage, file count, retention, formats, playout behaviour, stream continuity, bandwidth and destination restrictions. For each entry, note the plan and when you checked it. If the provider does not publish a value, write “not confirmed” and ask support rather than converting silence into “unlimited”.
Also separate a provider’s own upload policy from YouTube’s treatment of the resulting live stream. A service may accept a file that YouTube cannot archive in the way you expect, or the stream may continue while its replay archive behaves differently. These are separate decisions and should be verified against current documentation.
Maximum file size per upload
Per-file size is usually given in GB, but the number is useful only when tied to a specific plan and product feature. A provider may distinguish prerecorded uploads from other media, or impose different limits across plans. Confirm whether the cap applies to the original file, the file after processing, or each item in a batch, and whether an upload that exceeds it is rejected or needs to be compressed.
StreamYard publishes explicit prerecorded-video size and duration figures by plan. Its help page lists 10 GB on Core, 25 GB on Advanced, and 25 GB on Teams and Business; the same page also assigns different durations, so those size values should not be read as standalone evidence of a 24-hour file allowance. Treat these as the figures shown in StreamYard’s documentation when you check it, and confirm current plan terms before buying. StreamYard’s file-limit guidance is the primary reference for those plan-specific caps.
For other services, do not infer an exact size from a product page that only says uploads are supported. Restream’s help documentation says file count, size and duration vary by plan, but the reviewed page does not give comparable exact caps. Gyre’s product information describes video uploads and 24/7 broadcasts, but the reviewed details do not establish a directly comparable maximum file size. For both, ask for the current limit for the exact plan and workflow you intend to use.
A practical check is to use a copy of a representative source file, not your only master. Record the file’s size, duration and format; upload it on a trial or test plan if available; then note whether processing succeeds and how long it takes. A successful test demonstrates that particular file and workflow, not a universal provider limit or a guarantee that every future upload will work.
If your file is too large, re-encoding may reduce its size, but it can also affect picture and sound quality. Keep the original, compare a short encoded sample on a phone and television, and avoid repeatedly recompressing the only copy. A portable drive can help preserve source files and backups, but it does not increase an online service’s cap.
Maximum duration per file
Duration is an independent cap. A video can be under the size limit but too long, or it can be very large while remaining within the duration limit. Providers may also define their duration caps by product feature or plan, so look for language that specifically means a maximum prerecorded-file duration rather than a playlist duration, library total or live-event length.
StreamYard’s published table, as noted above, lists Core at 2 hours, Advanced at 4 hours, and Teams and Business at 8 hours for prerecorded videos, alongside its file-size figures. These are per-file limits as stated by StreamYard, not a promise that a single file can run continuously for 24 hours. Check the current page and the plan you will use, since published terms may change.
Castr illustrates why the wording matters. Its help page describes continuous event duration as unlimited while a subscription remains active and has sufficient streaming bandwidth. Separately, its simulive product page gives prerecorded-stream file durations that vary by plan, from 60 to 240 minutes. Those statements answer different questions: the length of an event and the maximum length of an uploaded source file. Review Castr’s 24/7 event guidance and its simulive page for the current wording and conditions.
Restream’s product page displays upload-library durations of 2, 4 and 12 hours on plan options, but those figures should not be presented as a maximum single-file duration unless its current documentation explicitly says so. A library duration may describe a different product allowance. Ask whether the limit applies to each video, the combined uploaded library, or another feature before relying on it.
When comparing duration, decide what your content actually needs. If you have four one-hour lectures, a lower per-file cap may be workable if the service accepts and sequences those files reliably. If you need one continuous recital recording, splitting it may be inconvenient and could introduce transitions or gaps. Choose based on how you plan to playout, not on a number detached from the workflow.
Library capacity: storage, file count and retention
A provider can permit individual files that fit your needs while still limiting the size or count of the entire library. Ask three separate questions: how much total storage is included, how many files can be kept, and how long uploads remain available. A service may publish one of these and leave the others dependent on plan or support confirmation.
Restream’s storage help page says upload count and video size or duration vary by plan. It states that free uploads are stored for 30 days, while paid uploads remain until manually deleted, according to the reviewed page. These are storage and retention details, not a maximum single-file duration. Confirm the current terms and plan before basing a long-running playlist on them; see Restream’s storage documentation.
Retention has practical consequences. If a free upload expires, an overnight stream or scheduled playlist that depends on it may no longer be available after the retention period. On a paid plan that keeps uploads until deletion, you still need to know whether storage can fill, whether a file can be removed from a playlist without deleting it, and whether deletion is reversible. Maintain local backups of source content and any recordings you need; cloud upload storage is not a substitute for your own backup.
File count matters for channels that publish many short clips. Total storage matters more when each item is a long, high-resolution recording. If a provider does not state the quota, request a written answer that identifies the plan, any soft or hard limit, what happens at capacity, and whether uploads are automatically removed. Avoid planning a library on the assumption that “unlimited” in one area applies to all three.
For a useful estimate, list your planned videos and add their durations and file sizes separately. The duration total helps you understand playlist coverage; the size total gives a rough storage requirement. Neither sum determines how long a single upload may be, and neither confirms that the provider will retain the material indefinitely.
Accepted formats and encoding guidance
A file-size comparison is not useful if the provider cannot ingest the container or codec you have. “MP4” and “MOV” refer to containers; the video and audio inside also use codecs. Before uploading a full library, check the provider’s accepted containers, video and audio codecs, resolution, frame-rate guidance and any processing restrictions.
StreamYard says it supports MP4 and MOV and recommends H.264 video with AAC audio in its format guidance. Restream lists MP4, MOV, M4V and MKV as supported upload formats in its documentation. These are provider-specific statements, not a guarantee that every file using one of those extensions will be accepted; codec, file integrity and settings can still matter.
Restream’s YouTube guidance documents H.264 video, resolutions from 240p to 2160p, bitrates of 3,000–40,000 Kbps depending on resolution and frame rate, up to 60 fps, and a recommended two-second keyframe interval with a four-second maximum. It lists AAC or MP3 audio. Treat these as settings documented by Restream, not freshly tested or universally optimal values. Review its YouTube streaming guidance and YouTube’s current requirements before preparing a production file.
For a non-technical workflow, start with a short test export using a widely supported combination such as MP4 with H.264 video and AAC audio where the provider recommends it. Confirm that sound is present, aspect ratio is correct, and the image does not show unexpected borders or stretching. If you need to change settings, keep notes about the successful export so the next file is consistent.
Do not make resolution the only quality decision. A 4K file can be far larger than a 1080p version and may take longer to upload and process, while viewers watching on mobile data may not benefit from the extra detail. For devotional art, a static or modest-motion visual may not need the same bitrate as fast-moving footage. Test against the audience and content rather than choosing the largest number available.
What continuous playout adds
A service that accepts a video is not automatically a service that can play it continuously. For a 24/7 channel, check whether it can repeat a single file, move through a playlist, schedule starts and stops, resume or restart after interruptions, and handle an empty or expired playlist. Ask whether the service can run multiple simultaneous channels under your plan, and whether each channel has its own file, schedule or bandwidth allowance.
Castr’s event-duration statement is conditional on an active subscription and sufficient streaming bandwidth. That is different from the separate simulive file-duration range. Restream advertises continuous streaming, but its own documentation notes that a continuous stream lasting over 24 hours may be interrupted by maintenance and suggests a restart every 24 hours. Read both the feature description and continuity caveats; a claim about an available mode is not the same as a promise that an individual session never needs attention.
The operational questions are often more important than the maximum file cap. What happens if an upload is still processing at the scheduled start? Does a playlist wait, skip, or stop when an item cannot play? If an event ends, is a new one created automatically or must you intervene? How are notifications or failures surfaced? These answers determine whether your channel needs a nightly check, a backup source or a more carefully planned schedule.
For a local news loop, you may need a schedule that swaps editions at a particular time rather than an endless repeat of yesterday’s bulletin. For a study channel, you may need lessons to play in order without a black gap between them. A useful example of the playlist side of this problem is planning a looping exam-prep lecture playlist. If you are using local files and a manual setup instead, keeping a playlist alive when it is empty is a different but related continuity concern.
A hosted option can remove the need to keep your own computer running and to intervene after a local machine drops; StreamNeo addresses that specific burden by running an uploaded video as a YouTube live stream with monitoring and automatic restarts. It does not change YouTube’s destination rules or remove the need to prepare content and check rights.
Compare bandwidth and destination behaviour
A file cap and a stream’s bandwidth needs are separate. The source file is uploaded to the service; the service then sends a live signal to YouTube. Ask whether the service has a per-channel streaming bandwidth allowance, whether it varies by resolution or concurrent destinations, and what condition applies if that allowance is exhausted. For self-hosted streaming, your home or office upload connection matters instead; the advice for a hosted service may not describe that setup.
Destination behaviour deserves its own row in your comparison sheet. Restream’s YouTube guidance says YouTube has no stream-duration limit but archives only streams under 12 hours. This distinguishes the live event from its replay archive. If you need a complete recording for later viewing, consult YouTube’s current official guidance and plan how to save or divide material; do not assume that an ongoing stream will produce one complete, permanent archive.
Similarly, Restream’s note about potential maintenance restarts after 24 hours describes its service continuity, not YouTube’s archive policy. An archive cut-off and a provider restart are different events. A restart can affect the live session; an archive rule affects what replay is retained. Confirm both with current documentation, because platform and provider terms can change.
Destination count is another comparison point. A channel that only needs YouTube should not pay attention to a multi-destination feature unless it solves a real need. If you plan to send the same material elsewhere as well, ask whether the provider allows those destinations on your plan and whether the concurrent output affects bandwidth or scheduling. StreamNeo is YouTube-only, so it is not suited to a workflow that requires simultaneous delivery to other platforms.
Before choosing, run through the whole path with a test file: upload and processing, start of the live event, playlist transition, a planned restart if relevant, and checking the resulting YouTube archive. You can also compare the operational approach with a continuous stream built around a VPS stream key; that route shifts more responsibility for the running machine and recovery onto you.
Keep a record of the provider plan, the relevant help-page links, the date checked and any written support answer. Revisit it when changing plan or destination settings. The most useful comparison is not a table with the most impressive-looking cap; it is one that makes clear which limits apply to your actual files and what you must do when a stream needs to continue.
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
What is the maximum video upload size?
There is no universal maximum across 24/7 streaming services. It depends on the provider, plan and upload feature; compare the published per-file cap and confirm current terms for your chosen plan. If the service does not publish an exact number, ask support rather than assuming one.
How long can my uploaded video be?
That is a per-file duration question, not the same as how long a live event can run. Check the provider’s single-file limit for the plan you will use, and distinguish it from library duration or event-duration wording. A playlist of shorter files may work where one long recording does not, if the service supports the sequence you need.
Can an uploaded video run 24/7 on YouTube?
Some services offer continuous playout or looping, but upload acceptance alone does not establish that capability. Check looping, playlist transitions, restart behaviour, bandwidth conditions and the provider’s terms; then check YouTube’s current archive behaviour separately. Test your actual file and schedule before relying on the channel overnight.
Should I upload one long video or several shorter ones?
Choose based on the provider’s file caps and the playout behaviour you need. Several shorter files can make schedules and updates easier, but only if transitions work reliably and the library’s total storage and retention suit you. One long file reduces playlist management, but it can be less flexible and may exceed a per-file size or duration limit.