Turn old YouTube videos into Shorts: your back catalog on a queue

What Shorts do for a back catalog

A channel that has been posting for years sits on hours of podcast episodes, shows, tutorials or archived streams. Those videos got their views when they came out, then the channel moved on to the next ones. Much of what they say has aged well: a clear explanation or a funny exchange still holds up.

YouTube itself suggests cutting them into Shorts. Its help page recommends “Turn clips of your on-demand videos into Shorts”. The same page stresses regularity: “A consistent, sustainable release schedule is critical”. A back catalog answers both. The material already exists, and there is enough of it to keep a schedule going for months.

Stratos·Clip reads each old video from start to finish and scores every moment on seven criteria: hook, emotional peak, standalone value, shareability, debate, density and quotability. The best ones are reframed vertically, captioned and edited with the template that suits the content. A forgotten episode turns into a run of fresh Shorts, with nothing new to film.

Then comes posting. A catalog of fifty videos yields hundreds of Shorts, and scheduling them one by one would become a second job. Here, the channel is set up once, and its queue posts at your pace, drawing on all your source videos. Our own channels run this way: about 500 Shorts posted a week, October 2026 count.

What one old video gives you, and what it costs

You know the yield before you launch. Detection aims for five moments over the first five minutes, then one extra moment for each additional five-minute block, up to 24. A 10-minute tutorial gives 6 Shorts; a one-hour show gives about 16. For your own video lengths, the Shorts calculator does the maths.

The price follows the length: 10 minutes analysed cost 1 credit, and each rendered Short costs 1 credit. A one-hour video comes to about 22 credits, analysis included. Starter gives 180 credits a month for $29.90, with 3 YouTube channels. Unused credits roll over to the next cycle, so you work through the catalog at your own speed and lose nothing from one month to the next.

Each Short runs 58 seconds at most by default. YouTube does accept Shorts of up to 3 minutes, for square or vertical videos uploaded after October 15, 2024. The limit comes from another YouTube rule: a Short that runs past one minute and carries an active copyright claim is blocked worldwide, while a Short of one minute or less escapes that block. Old shows often carry an intro tune, background music or a quoted clip. Under one minute, the Short stays watchable even if one of those passages gets claimed. The guide on Shorts blocked by a copyright claim covers that rule in detail.

Three back catalog problems, and how they are solved

Hundreds of hours to rewatch. Nobody sits through two years of episodes to note the good parts. Stratos·Clip does that reading and hands back clips that are already ranked. You still decide: any clip can be watched, pulled from the queue or set to the time you choose.

One episode all week long. A one-hour video yields about 16 Shorts. Posted back to back, they would fill the channel for days with a single topic. The queue interleaves your source videos and serves first the ones that have not posted yet that day; if only one source has Shorts ready, it still posts rather than leave a slot empty. Add videos from different periods, and the channel mixes topics on its own.

Losing track of what is done. A catalog takes weeks to work through, and it gets hard to remember which video went in. A YouTube link already submitted for the channel is refused if you paste it again in the same form. Always paste the link from the address bar, without a timestamp or playlist, so you never launch the same video twice. Each channel also shows how many days of posting its queue covers, which tells you when to add the next batch.

An eighty-video back catalog, worked out

Take a channel that has posted a one-hour podcast every week for a year and a half: about eighty episodes. It is set to three Shorts a day, ninety slots in a thirty-day month.

Six old episodes a month give a little more than the ninety slots. Their credits fit within the 180 credits of Starter, with enough left over for two more episodes, old or new. At that pace, the catalog feeds the channel for over a year, before counting the episodes that come out each week.

Launching everything at once would be a poor trade. Eighty episodes launched on the same day would cost eighty times 22 credits, more than the 1,250 credits of the Agence plan (for agencies). And the queue would still post them at the pace you set, three a day. Launch six episodes at the start of the month, or two a week, and keep an eye on the channel’s runway.

Paid plans open with online payment. Until then, the “Notify me at launch” button on the pricing grid records your email and the plan you want, and the free plan already posts to one channel, up to 2 Shorts a day. It gives 30 credits a month, with a watermark, while seats are open: enough for one old one-hour video a month.

Settings that matter for a back catalog

• Template, video by video. At launch, the default choice is “Automatique” (automatic; the app’s labels are in French for now): a video with an inset webcam goes to Gaming, a channel with a series bible to Series and fiction, any other to Podcasts and interviews (“Standard” in the app). An archived stream with a facecam therefore gets the right template with no setup; the gaming clips page shows what that looks like. For a screen-recorded tutorial, Full frame (“Blur Neon” in the app) keeps the whole picture centred on a blurred background, without captions.
• Channel content type. “Éducatif / Business” (educational) targets clips of 30 to 58 seconds, “Talk / Divertissement” (talk and entertainment) 20 to 50 seconds. A tutorial channel keeps the first; a comedy show does better with the second.
• Pace. From 1 to 10 posts a day, in fixed slots or continuously, within your space’s daily cap. A large catalog supports a high pace; the runway tells you whether your launches keep up.
• Crediting the original video. A channel option appends to each description “Extrait de” with the source video’s title and channel, then its link, for YouTube sources. The option writes that line in French. A viewer of the Short can tell which episode it came from.
• The longest sources. A YouTube link to a video longer than 3 hours is refused. Split a longer archived stream into parts under 3 hours before importing them: 8 GB at most per file, 10 files per import.

Your rights to the old videos

You are responsible for the videos you add, and a Content ID claim applies to the video the channel posts. There are two cases.

Your own videos, on your own channel. This is the simple case. YouTube’s reused content policy targets channels that repurpose content already online without meaningful added value; among the content it allows is content that primarily features the creator who uploads it. What remains are the third-party parts inside your videos: music, quoted clips, archive footage. The 58-second cap limits what a claim does to the Short; it does not stop the claim.

Another creator’s videos. Their consent settles copyright, not reused content: YouTube states that the policy applies even with the original creator’s permission, and that monetization may be removed from the entire channel. The safest route is to post those Shorts on the creator’s own channel.

When another option serves you better

• You want a few Shorts, not a channel that runs on its own. YouTube Studio cuts segments of your long-form videos into Shorts, with AI suggestions offered in France and in French, among other countries and languages. Each Short goes through a draft, then the standard upload dialog. On a phone, “Edit into a Short” takes up to 60 seconds of one of your public videos.
• You want a link to the original video under the Short. YouTube Studio’s tool adds the source video as a related video, unless the Short is private, unlisted or Made for Kids. Stratos·Clip does not set that link; it credits the original video in the description.
• You also post to TikTok or Instagram. Stratos·Clip posts to YouTube Shorts only, straight to your channels.
• Your catalog is not in French. The interface is in French, and detection and titles have only been measured on French-language videos. Try one video on the free plan first.

Start your back catalog

1. Create your space with your Google account, then connect your channel through Google’s official sign-in. Stratos·Clip only acts on the videos it posts itself.
2. Set up the channel’s queue once: fixed slots, or a number of posts per day.
3. Pick your first videos from different periods of the catalog, so the queue has something to rotate between.
4. Add them, one YouTube link at a time or up to 10 files per import. Keep “Automatique” or pick the template.
5. Review the ready clips. The scheduler runs every hour and fills the slots with ready Shorts.
6. When the channel’s runway drops, add the next videos from the catalog. Shorts from your new uploads join the same queue and slot in between the old ones.

Is your catalog a podcast? The podcast to Shorts page covers framing on whoever is speaking. Several channels to keep running: Manage multiple YouTube Shorts channels prices a month across five channels.