Submagic

Add dynamic captions and b-roll to your shorts.

Visit Submagic submagic.co

Free trial available; paid plans are listed on the website.

Screenshot of the Submagic website

Submagic is an AI video tool made for short-form creators who want their clips to look polished without spending hours in an editor. It focuses on animated captions and b-roll, two things that make shorts feel more engaging.

What it does

You upload a short video and Submagic generates styled, animated captions synced to your speech, then suggests relevant b-roll and adds effects, transitions and emojis to lift the energy of the clip. Everything is tuned for social platforms, with caption templates designed to grab attention in the feed. The result is a faster route from raw recording to a share-ready short.

Who it’s for

Submagic is aimed at short-form creators, marketers and agencies who publish captioned videos regularly. If dynamic captions and b-roll are a big part of your style, automating them saves real time. A free trial lets you see the results first, and the website lists paid plans for continued use.

Key features

  • Auto-generated animated captions
  • AI-suggested b-roll to match your content
  • Effects, transitions and emojis for engagement
  • Fast editing tuned for short-form video
  • Styled caption templates for social platforms

Pros & cons

👍 Pros

  • Captions and b-roll generated automatically
  • Purpose-built for short-form content
  • Free trial to test the workflow

👎 Cons

  • Ongoing use requires a paid plan after the trial
  • Auto b-roll suggestions may need adjusting

Submagic — FAQ

What is Submagic?

Submagic is an AI video tool that adds animated captions, b-roll, transitions and effects to short-form videos, speeding up editing for social content.

What does Submagic do?

Upload a short video and Submagic generates styled captions synced to your speech, suggests relevant b-roll, and adds effects to make the clip more engaging.

Is Submagic free?

Submagic offers a free trial, with paid plans for ongoing use listed on the website.

Who is Submagic for?

Short-form creators, marketers and agencies who want polished captions and b-roll without editing each clip manually.