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Grow your channelStep 8 of 8Intermediate9 min read

How to Make Videos for TikTok, Reels & Shorts

Short-form video is the fastest way to grow an audience, but each platform rewards slightly different things and the bar for attention is brutal. This guide covers the format fundamentals (aspect ratio, length, captions, safe zones), the hook-first structure that earns watch time, and how to repurpose one AI video across TikTok, Instagram Reels and YouTube Shorts without re-making it.

What you’ll learn

  • The format fundamentals: aspect ratio, length, captions and safe zones
  • How to win the first three seconds — the only part that guarantees a view
  • A hook → value → payoff → CTA structure that retains attention
  • How to repurpose one video across TikTok, Reels and Shorts

Get the format right

Short-form is vertical, fast, and built for mute viewing. Nail these basics before anything else.

  1. 1Aspect ratio: 9:16 vertical, full-screen.
  2. 2Length: 15–34 seconds converts best for most niches; test up to 60s once retention is good.
  3. 3Captions: always on — most viewers watch on mute.
  4. 4Safe zones: keep text and key visuals away from edges where the platform UI sits.

Win the first 3 seconds

The hook decides everything. Open with the payoff, a bold claim, or a pattern interrupt — not a slow logo intro or “hey guys, welcome back”. Show the result first, then explain how you got it. If the first three seconds don’t stop the scroll, nothing else in the video matters because no one sees it.

Structure that retains

Use a simple spine: hook → value → payoff → quick CTA. Keep to one idea per video, cut every second of dead air, and end on a clear next step (“follow for part 2”, “link in bio”). If an idea is strong, film it three different ways — the angle that lands isn’t always the one you expect.

Repurpose across platforms

Make once, post everywhere. The same vertical, captioned clip works on TikTok, Reels and Shorts — you mainly adjust the caption, hashtags and any on-screen text per platform. Use AI to spin language variants for international audiences and to re-cut a long video into several shorts.

Post consistently and read the data

Consistency beats perfection on short-form. Batch-produce so you always have something to post, then let the data coach you: watch which hooks hold attention and which formats get shared, and make more of what works. One video rarely tells you anything — patterns across ten do.

Platform nuances worth knowing

The fundamentals carry across all three, but small differences help. TikTok rewards trends, sound and fast hooks; Reels leans on shareable, polished moments and trending audio; Shorts benefits from clear value and ties into your wider YouTube presence. Lead with the same strong short, then tweak the caption and tags to fit each.

Quick tips

  • Batch-produce: make 5–10 variations in a session and post consistently.
  • Hook ideas that work: “Stop doing X”, “Here’s how I…”, “3 mistakes that…”.
  • Add captions and a strong first frame — both lift watch time on muted feeds.
  • One idea per video; if you have two, make two videos.
  • Re-cut long videos into multiple shorts to multiply your output.

Frequently asked questions

What length is best?

15–34 seconds is a strong default for most niches; test longer once you have retention.

Do I need different videos per platform?

Usually one vertical video works across all three — just tailor the caption and hashtags.

How do I get more views?

A strong 3-second hook, always-on captions, one clear idea, and consistent posting matter most.

Can AI make these for me?

Yes — describe the video and Vivideo generates a vertical, captioned short ready to post.

How often should I post?

Consistency beats volume — a sustainable cadence you can keep beats a burst you can’t.

Ready to make your video?

Put this guide into practice — make your first AI video free, no editing needed.

Make your first video free