YouTube Shorts is the fastest-growing surface on YouTube, and in 2026 you don’t need a studio or an editor to make them. This guide covers both ways to make a Short — from scratch (a topic and a script) and from an existing long video — plus the exact specs, the parts that actually drive views, and where AI removes the tedious work.
The short answer
A YouTube Short is a vertical video (9:16, 1080x1920) up to 3 minutes long, made one of two ways: from scratch with a hook-driven script, a voiceover, and b-roll, or by clipping the best moment out of a longer video and reframing it to vertical. The winning formula is the same either way: a hook in the first 1-2 seconds, tight pacing, and burned-in captions (most Shorts are watched on mute). You can do the whole thing free and locally with an AI clip picker, auto-reframe, and auto-captions — no camera, no timeline scrubbing, no watermark. What used to take an hour in a video editor now takes a few minutes, which is what makes a daily posting cadence realistic.
YouTube Shorts specs (2026)
Get these right first — YouTube uses them to route your video into the Shorts feed.
| Spec | Value |
|---|---|
| Aspect ratio | 9:16 vertical (1:1 square also eligible) |
| Resolution | 1080 x 1920 px |
| Max length | 3 minutes (raised from 60s in late 2024) |
| Frame rate | 30 or 60 fps |
| Format | MP4 (H.264) |
| #Shorts hashtag | Optional — YouTube auto-detects vertical shorts |
If your footage is landscape, don’t upload it as-is — reframe it to 9:16 first, or YouTube will letterbox it and it won’t feel native.
Path A: Make a Short from a topic (from scratch)
Use this when you have an idea but no footage.
1. Start with a hook, not an intro
The first 1-2 seconds decide whether someone keeps watching. Open with the payoff, a bold claim, or a question — never “hey guys, welcome back.” Write the hook first and build the script around it. Our guide to writing viral YouTube scripts with AI breaks down hook structures that hold retention.
2. Write a tight 100-150 word script
At natural speaking pace, ~130 words is roughly 45-60 seconds. Cut every sentence that isn’t the hook, the point, or the payoff. One idea per Short.
3. Add a voice
Record it yourself, or use text-to-speech / an AI voice if you’re going faceless. A cloned or natural-sounding voice keeps a faceless channel consistent across dozens of videos.
4. Fill the frame with visuals
Faceless Shorts use stock footage, AI-generated b-roll, or motion graphics matched to each line of the script. The visuals just need to keep the eye moving — they support the audio, they don’t have to be cinematic.
5. Burn in captions and export
Add word-by-word captions synced to the voice, then export vertical (1080x1920). An AI Shorts maker does steps 2-5 in one pass: script → voice → matched b-roll → captions → vertical MP4.
Path B: Turn a long video into Shorts (repurposing)
This is how most consistent Shorts channels actually run. One long video, podcast, or stream becomes five to ten Shorts.
1. Let AI find the best moments
Manually scrubbing an hour of footage for clip-worthy moments is the slow part. An AI clip picker transcribes the video, scores each moment for hook strength and retention, and hands you the strongest 15-60 second segments ranked. See how to repurpose long videos into Shorts for the full workflow.
2. Reframe landscape to vertical
Long videos are 16:9; Shorts are 9:16. Auto-reframe tracks the speaker or subject and keeps them centered, so you’re not manually keyframing a crop. A vertical video converter handles this in one click.
3. Caption and polish each clip
Burn in captions, tighten dead air, and add a title card if the clip needs context. Then export each as its own vertical MP4.
A one-hour podcast can produce a week of daily Shorts this way — no new filming. The podcast-to-Shorts guide walks through it end to end.
The three things that actually drive Shorts views
Specs get you into the feed; these keep you there.
- The hook (first 1-2 seconds). Swipe-away happens instantly. Lead with the most interesting frame or line.
- Captions. A large share of Shorts are watched on mute. On-screen text is the difference between a scroll and a watch. Add captions and subtitles to every video.
- Pacing. No dead air, no slow build. Cut silences, jump-cut between points, and end before the energy drops.
How AI makes a daily cadence realistic
The reason most creators can’t sustain Shorts is time, not ideas. Doing it by hand — scrub, cut, reframe, caption, export — is 30-60 minutes per clip. AI collapses that: it finds the clip, reframes it, and captions it in minutes, so the bottleneck becomes “which ideas,” not “when will I have time to edit.”
ViralMint is a free, open-source desktop app that does the whole Shorts workflow locally — AI clip extraction, auto-reframe to 9:16, word-by-word captions, AI script and voice for faceless Shorts, and export to a clean vertical MP4 with no watermark. It runs on your own machine, so your footage never leaves it, and you post the finished file to YouTube yourself. Whether you’re making Shorts from a topic or slicing them out of a long video, that’s the workflow that turns “I should post Shorts” into actually posting them every day.
Ready to make your first one? Try the AI Shorts maker for scratch videos or the YouTube clip extractor to pull Shorts out of a video you already have.