Best viral clip generators to repurpose your long-form videos

Ellie

April 17, 2025

Min Read

If you’re a content creator, podcaster, coach, or agency, you already know that long videos are gold—full of gems. But no one scrolls for 20 minute videos. People scroll for short clips. For bite-sized moments that pop on TikTok, Instagram Reels, or YouTube Shorts.

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That’s where AI video generators come in. Gone are the days where viral clips on YouTube were 15 minutes or more. People don’t send long videos to friends and families to watch. Instagram and TikTok have pioneered the easy “Send” clip — making it easy to share.

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Today, I want to walk you through the best viral clip generators that take long-form content and turn it into engaging videos—fast. Think of this as your cheat sheet for high-quality, on-brand, scroll-stopping video content.

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So, let’s dive right into it.

First, what’s an AI clip generator?

It’s a tool powered by artificial intelligence that takes your long-form video, like a podcast, webinar, or Zoom call, and automatically cuts it into short videos that are optimized for social media platforms.

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The best part? You don’t need fancy editing skills or a massive production team. These tools use AI video editors, text prompts, and automation to do the heavy lifting.

The best viral clip generators

These are tools I’ve used personally—or seen other creators use to scale content, grow their YouTube channel, and repurpose like a pro.

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1. Submagic

Let me start with Submagic. It’s built for creators who care about workflow, not just flashy features. Submagic has the flash, but focuses on efficiency, automation, and offers you the flashy, things-that-make-you-go wow, just when you need it.

Seven reasons why it’s the best viral clip maker:

Three-click workflow from long-form to viral-ready
Auto subtitles with hyper-accurate transcription
Polished caption styles, transitions, and b-rolls
Built-in resizing for reels, shorts, and more
Supports voiceovers, text-to-speech, and audio cleanup
Templates you can customize for your vibe
Made for real creators: coaches, realtors, agencies, freelancers

It’s not just a video editor—it’s an AI-powered assistant that turns your backlog into a brand.

Try Submagic’s Subtitle Generator and see the difference in your video production speed.

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2. Veed.io

Veed’s clean and user-friendly interface makes it great for beginners. Veed does add a few steps before it generates clips. Unlike Submagic and Opus, there are a few configurations users have to make before they can generate clips.

Features:

Drag-and-drop video maker
AI voice tools and text-to-video
Stock footage, AI avatars, and slick visuals

But where it shines is basic customization. If you're starting out and want a quick way to add captions, resize, and export, this is a solid choice.

Downsides? Many features are locked behind a paid plan, and the automation isn’t as slick as others.

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3. Pictory

This one’s ideal for text-to-video lovers and YouTube automation workflows. Pictory is not your traditional convert-long-form-video into shorts type of editor, but it’s more of a creator. You can convert blogs into videos or build your own video in its editor.

While it’s not a converter, people yet use it to create viral clips, so it’s on the list. If you are looking to repurpose your podcast or long-form video into viral clips with captions, this is not the tool for you.

What it does:

Converts blog posts or scripts into AI-generated videos
Auto selects stock footage and syncs it with your narration
Supports text-to-speech, voiceovers, and branding

It’s not ideal for repurposing long videos like podcasts, but it’s perfect if you’re building content from scratch and want high-quality videos fast.

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4. Opus Clip

This one uses AI tools to find the best parts of your long-form videos and generate short, punchy clips. While Opus clips has wide media coverage, it was very slow to convert a demo video into clips.

It took me about 5 - 6 minutes of waiting—which was great, it gave me time to tweak this blog a bit. Opus Pro editor puts the focus on the transcript and the timeline editor. All other options are tucked away in a sidebar menu. Nonetheless, it is one of the leaders in this space.

Highlights:

AI analyzes hooks, pacing, and trends
Clips include subtitles, emojis, and punch-ins
Great for trending topics and short videos

It’s more set-it-and-forget-it—but sometimes you want more control over your video editing and customize the outcome. That’s where Submagic still wins.

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Sendshort viral clip generator video editor

5. SendShort

SendShort is another rising favorite in the AI video tools space—especially if you're looking to generate clips from podcasts or talking-head content. However it lacks efficiency and features.

It does not automatically and intelligently generate viral clips from your long form content, once you import your video it will segment scenes on a timeline and you have to click on a segment to “select a moment”.

This can prove to be extremely cumbersome. Where Submagic shines as a productivity tool saving users hours each week, Senshort adds a little bit more work for each clip.

What it does:

Pulls short clips automatically from long-form podcasts
Detects key moments using AI and edits them down for you
Tailored for platforms like TikTok, Instagram Reels, and YouTube Shorts
Built-in resize, auto-captions, and text styling

SendShort’s real strength is its simplicity. If you’re batch recording podcasts or interviews and need a fast way to turn them into trending clips without touching a timeline—this tool delivers.

Great for beginners. Great for speed. Just note: You’ll want to double-check customization options if branding is critical.

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You might have heard about Synthesia

Synthesia is not on our list because it is more of an AI avatar generator. While you can create clips with AI avatars and their dead eyes, I’m preeeeety sure they’re not going to go viral. If it does, it’s perhaps not for the right reasons.

Having said that, Synthesia is one of the leaders in the text to speech and AI Image or AI avatar generator type of videos.

What to look for in an AI clip generator

Here’s what separates a good tool from a viral-making machine:

Feature	Why It Matters
Subtitles	80% of mobile users watch muted
Templates	Saves time, keeps branding consistent
Transitions & Visuals	Makes clips feel pro-level
Text Prompts	Generate ideas or scripts fast
Customization	Tweak for each platform—TikTok, YouTube Shorts, etc.
No Watermark	Keep it clean and professional
Free Plan	Test before committing (just don’t forget about limitations)

Pro tip: Speed up your workflow

I batch my content using Submagic. One long video, then boom—15+ short clips ready to publish. Resize, auto caption, tweak timing, polish with fonts, visuals, music. All in one go.

It’s the closest thing I’ve found to a video creator sidekick. And yes, there’s a free AI video plan to get started—no credit card needed.

So, what’s the takeaway here?

Submagic is the clear winner. If you take the top three in this space; Veed, Opus, & Submagic, Submagic helps creators get their videos done much quicker. Not only that, when you dig deeper into features, pricing, and customer support, Submagic has a little more sparkle, a little more magic, than the others.

AI-powered clip generators are the secret weapon for modern content creation. They let you punch above your weight—whether you’re solo or running an agency.

And if your goal is to go viral, grow your social media, or turn podcasts into polished video content, these tools are your shortcut.

🔥 Want to test one right now, for free? Start with Submagic’s Subtitle Generator. It’s fast, accurate, and built for creators like you.

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About the author

Ellie

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Examples of Videos with automatic captions from Submagic

So many creators currently use Submagic to create captivating automatic captions on their social pages with amazing engagements. Here are a few examples of automatic captioning for videos created with Submagic by creators across different countries in different languages.

Vick Tipnes

@vicktipnes