AI shorts generator

AI Shorts Generator for Long-Form Videos

Turn a long recording into a set of candidate short clips. ReelMafia helps find moments, reframe them for vertical viewing, and add captions; you review the selections and choose what to export for YouTube Shorts or other short-form channels.

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Built for:

  • • YouTubers
  • • Podcasters
  • • Editors
  • • Teams repurposing evergreen content

Make several Shorts from one source—when the video supports it

A long video may contain several separate ideas, but not every minute needs to become a Short. Start with moments that can each stand alone, then keep the setup and payoff that make the idea understandable. Remove clips that repeat the same point or depend on context viewers will not have.

After moment selection, review the crop and captions as a complete viewing experience. A clip should feel intentional on a phone, not like a random excerpt from a longer upload.

A practical Shorts workflow

  1. Long-form video
  2. AI moment suggestions
  3. Clip review
  4. Vertical framing
  5. Caption check
  6. Export selected Shorts

Why it matters

One video can become a pipeline of social content.

AI highlight detection

Surface the moments most likely to earn attention, from punchy statements to clarifying explanations and key reactions.

Auto vertical output

Convert landscape or horizontal footage into vertical 9:16 clips that feel ready for YouTube Shorts and Instagram Reels.

Content repurposing workflow

Create multiple short clips from a single long recording, giving teams more reach without extra production time.

Caption overlays

Design or apply animated text so the clips are more engaging even with the sound off.

Thumbnail and post copy

Generate supporting creative assets quickly for a more complete publishing workflow.

Creator-friendly output

The workflow is designed for creators and teams who need speed without sacrificing quality.

How it works

Turn raw footage into polished short-form clips in a few steps.

1

Choose a source

Use a supported long-form video, such as a YouTube source or a direct video input.

2

Review suggested moments

AI helps identify sections that may work as complete short clips.

3

Shape each Short

Check clip boundaries and whether the point makes sense to someone who has not watched the full video.

4

Format and caption

Reframe to vertical 9:16 and review generated captions for accuracy and readability.

5

Export your selected clips

Download the clips you want to publish and prepare them for your channel workflow.

FAQ

Questions creators ask before they start

What does an AI shorts generator do?

It takes long videos and turns them into short-form clips by identifying moments, reframing the shot, and adding captions or edited overlays.

Can I use it for long YouTube videos?

Yes. The workflow is especially useful for turning YouTube content into Shorts and social clips without manually trimming each section.

Does it support multiple formats?

Yes. ReelMafia is designed for short-form publishing across vertical social video formats, especially 9:16 content.

Will every suggested clip be ready to publish without review?

No. Review clip context, timing, framing, and caption accuracy before exporting. AI suggestions help with discovery but do not replace editorial judgment.

Explore connected workflows

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