You have a 45-minute YouTube video — a tutorial, a lecture, a livestream, a conference talk. Somewhere in that video are five or six moments that would make great YouTube Shorts. You know this because people keep commenting on those specific parts. But you don’t know Premiere Pro. You don’t know Final Cut. The last time you edited a video was trimming a clip on your phone, and that barely counts.
Good news: you don’t need editing skills to make YouTube Shorts from a long video. The tools have caught up to the point where the hardest part isn’t the editing — it’s deciding which moments to clip. And even that can be automated now if you want it to be.
Here’s how to do it, from zero editing experience to published Shorts.
What YouTube Shorts Actually Requires
Before we get into tools, let’s be clear on the spec. A YouTube Short needs to be:
- Under 60 seconds. This is a hard limit. Anything over 60 seconds isn’t a Short — it’s just a regular vertical video.
- Vertical (9:16 aspect ratio). Portrait mode, like you’re holding your phone upright. Your long video is almost certainly in landscape (16:9), so it needs to be reformatted.
- Uploaded to YouTube. You can upload directly or schedule through YouTube Studio.
That’s it. No minimum length, no mandatory features, no required format beyond those three things. Captions are strongly recommended (85% of short-form video is watched on mute) but not technically required.
Option 1: YouTube’s Built-In Editor (Free, Already There)
YouTube has a trimming tool built into YouTube Studio. It won’t win any awards, but it works for simple cuts.
How to do it:
- Go to YouTube Studio → Content → Find your long video.
- Click “Remix” → “Edit into a Short.”
- YouTube lets you select a segment up to 60 seconds.
- Trim the start and end points.
- Add text if you want (basic text overlay).
- Publish as a Short.
What’s good about this: Zero setup. You don’t install anything or create any new accounts. If the moment you want to clip is a continuous 30-60 second stretch with no edits needed, this gets it done in under five minutes.
What’s not great: You can’t crop to vertical, so your landscape video appears as a small rectangle with black bars above and below. That looks amateur. There’s no captioning, no ability to zoom in on the speaker, and no way to cut out dead air in the middle of a clip. For anything beyond the simplest possible Short, you need a different tool.
Option 2: CapCut (Free, Handles the Formatting)
CapCut is a free video editor made by ByteDance (the company behind TikTok). It’s available on desktop, mobile, and web. It’s designed for exactly this kind of work — taking existing footage and formatting it for short-form platforms.
Why it works for beginners:
- The interface is visual and immediate. Drag, trim, done.
- Auto-captions are built in and surprisingly accurate.
- You can crop landscape video to vertical with a single click and reposition the frame to focus on the speaker.
- Templates let you add trending caption styles without designing anything.
The workflow:
- Download or upload your long video.
- Find the moment you want to clip (scrub the timeline or use the transcript search).
- Trim to 60 seconds or less.
- Change aspect ratio to 9:16 (CapCut has a preset for this).
- Reposition the crop so the speaker’s face is centered.
- Turn on auto-captions. Choose a style.
- Export and upload to YouTube.
Time per clip: 10-15 minutes once you’ve done it twice. The first one takes longer because you’re learning the interface.
The downside: You still have to watch your long video and decide which moments to clip. For a 60-minute video, that means 60 minutes of watching (or fast-forwarding and hoping you don’t miss the good parts). This is the step that takes the most time, and CapCut doesn’t help with it.
Option 3: AI Clipping Tools (Finds the Moments for You)
This is where it gets interesting. AI clipping tools watch your video, analyze the content, and suggest the best moments to clip — so you don’t have to scrub through the entire timeline yourself.
Very Big Clips works like this: you import a long video from Google Drive, the AI (powered by Gemini) transcribes and analyzes the entire video, and it surfaces the moments most likely to work as standalone Shorts. You review the suggestions, pick the ones you like, choose a caption style, and export.
The key difference between this and CapCut is the finding step. With CapCut, you hunt for moments manually. With an AI clipping tool, the moments come to you. For a 60-minute video, this can save an hour of watching and rewatching.
Other AI clipping tools:
- Opus Clip — Similar concept. Paste a YouTube link, AI suggests clips. Good for videos already on YouTube.
- Descript — Transcript-based editor where you edit video by editing text. You can search the transcript for key phrases, which is faster than scrubbing a timeline.
| Tool | Cost | Finds moments for you | Captions | Vertical crop | Skill level needed |
|---|---|---|---|---|---|
| YouTube Editor | Free | No | No | No | None |
| CapCut | Free | No | Yes (auto) | Yes | Basic |
| Very Big Clips | Free tier | Yes (AI) | Yes (styled) | Yes | None |
| Opus Clip | Free tier | Yes (AI) | Yes | Yes | None |
| Descript | $24/mo | Partial (search) | Yes | Yes | Basic |
How to Pick the Right Moments (Even If AI Does It)
Whether you’re finding clips manually or reviewing AI suggestions, you need to know what makes a good Short. Not every 45-second stretch of video works. The ones that perform well share a few characteristics.
Starts with something strong. The first two seconds determine whether someone watches or scrolls. A great Short opens with a statement, question, or visual that creates immediate curiosity. “The biggest mistake I see in [topic] is…” works. “So, um, continuing from what we were talking about…” does not. If the best part of the clip is in the middle, you may need to trim the beginning so the strong part comes first.
Self-contained. The viewer hasn’t seen your long video. They don’t know the context. The clip needs to make sense on its own — a complete thought, tip, story, or demonstration. If understanding the clip requires watching something else first, it’s not a Short, it’s a trailer.
Has a natural ending. The clip should feel finished. A clear concluding statement, a result being shown, a question being answered. Clips that end abruptly or mid-sentence feel like something went wrong.
30-45 seconds is the sweet spot. You can go up to 60, but shorter tends to perform better because watch-through rate matters enormously to YouTube’s algorithm. A 30-second Short where 80% of people watch to the end will outperform a 60-second Short where only 40% make it through.
The Actual Process, Start to Finish
If you’ve never done this before, here’s the simplest path from long video to published Short:
1. Upload your long video to Google Drive (if it’s not there already). This works with any video — a YouTube download, a Zoom recording, a camera file.
2. Open Very Big Clips and import the video. Let the AI analyze it. This takes a few minutes depending on the video length.
3. Review the suggested clips. The AI typically surfaces 10-20 potential clips from a 60-minute video. Watch each one — they’re short, so this goes fast. Pick 3-5 that stand on their own.
4. Choose a caption style. Pick one that’s readable and matches your brand. Bold, centered text is the standard for a reason — it’s easy to read on a small screen.
5. Export the clips. Each one is a vertical, captioned video file ready to upload.
6. Upload to YouTube. Open YouTube Studio on your phone or desktop. Upload each clip. Add a title and a couple relevant hashtags. Publish or schedule.
Total time for 5 Shorts from a 60-minute video: About 30-45 minutes, most of it spent reviewing and selecting clips. Compare that to the 4-5 hours it would take doing everything manually in a traditional editor.
Mistakes I See All the Time
Black bars. Uploading a landscape video as a Short without cropping to vertical. The video plays in a tiny rectangle in the middle of the screen. Nobody watches these. Always crop to 9:16.
Clips that are too long. If your Short is 58 seconds and there’s 10 seconds of dead air in the middle, cut it. Shorter is almost always better. Respect people’s time and they’ll watch to the end.
No captions. People scroll YouTube Shorts in public, in bed, in meetings (we won’t judge). If your Short requires audio to understand, you’re losing most of your potential viewers. Always add captions.
Ignoring the hook. The thumbnail and first frame of a Short is what people see while deciding whether to watch. If the first frame is a blank slide or the back of someone’s head, viewers will scroll past. Start with something visually interesting or textually compelling.
Posting once and giving up. Your first Short probably won’t blow up. Neither will your second. YouTube’s algorithm tests Shorts with small audiences and scales distribution based on engagement. It takes 10-20 Shorts before the algorithm has enough data to understand who to show your content to. Consistency matters more than perfection.
The Bottom Line
You don’t need to learn video editing to make YouTube Shorts. The tools — from YouTube’s own editor to AI-powered clippers — handle the technical parts. Your job is to have a long video with good content in it (which you already do) and to pick the moments worth sharing (which AI can help with).
Start with one video. Pull 3 Shorts from it. Publish them this week. See what happens. The bar for getting started is genuinely low — the only thing stopping most people is the assumption that it’s harder than it actually is.