Best Long Video to Vertical Format Converters in 2026: 5 Top AI Tools for Shorts & Reels

Turning long videos into engaging short clips has never been easier. In 2026, AI tools allow creators to convert horizontal content into vertical Shorts, Instagram Reels, and TikToks effortlessly. Whether you're a content marketer, educator, or streamer, these top 5 tools optimize your videos for social platforms.

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Best Long Video to Vertical Format Converters
CapCut
CapCut
Feb 11, 2026
8 min(s)

As a content creator, I've spent countless hours manually trimming videos, adjusting subtitles, and reformatting content for social platforms. That's why I've been exploring AI-powered long video to vertical format converters that streamline the process.

In this guide, I'll walk you through my top 5 picks for 2026, explain their key features, and share practical ways to use them. Tools like CapCut long video to shorts have completely changed my workflow, allowing me to focus on creativity rather than tedious editing. By the end of this article, you'll know exactly which tools can help you repurpose long videos into high-quality, shareable social clips.

Table of content
  1. Maximizing Reach: Converting Long Videos for Shorts & Reels
  2. Top 5 Long Video to Vertical Format Converters at a Glance
  3. Detailed Reviews of the 5 Best Tools
  4. Practical Use Cases: How I Use CapCut for Long Videos
  5. Conclusion
  6. Frequently Asked Questions

Maximizing Reach: Converting Long Videos for Shorts & Reels

Before diving into specific tools, I want to highlight why these converters are essential for creators today:

  • Maximize content reach: Vertical formats like Instagram Reels and TikTok Shorts are dominating social feeds. A long video to Instagram Reels converter ensures your content adapts perfectly to these platforms, increasing engagement without extra filming.
  • Save time on editing: Manually trimming long videos is tedious. AI tools analyze your footage, detect highlights, and generate multiple short clips automatically, allowing me to focus on storytelling rather than editing minutiae.
  • Optimize for social algorithms: Short, vertical content performs better across TikTok, YouTube Shorts, and Instagram. Using a long video to social clips optimizer ensures clips are the right length, aspect ratio, and highlight key moments.
  • Accessibility and localization: Many converters offer automated captions and translations. With tools like CapCut auto caption generator, your content becomes instantly accessible to global audiences.
  • Consistency and branding: Templates, styling, and automated title generation help maintain visual consistency. This is crucial for building a recognizable brand across multiple short-form platforms.

Top 5 Long Video to Vertical Format Converters at a Glance

Top 5 Long Video to Vertical Format Converters at a Glance

Detailed Reviews of the 5 Best Tools

CapCut – The All-in-One AI Converter

CapCut has become my go-to tool for turning long videos into vertical Shorts. It supports videos up to 3 hours or 10GB, which is perfect for webinars, podcasts, livestreams, or interviews. The AI automatically detects the most engaging highlights, trims the content into multiple short clips, and formats them perfectly for vertical platforms like TikTok, Instagram Reels, and YouTube Shorts.

What I love most is how it also generates multilingual subtitles, applies smart vertical cropping, and even creates AI-powered titles and descriptions. With CapCut AI long video to short video, I can batch-produce shorts from a single video, drastically reducing manual editing time while maintaining professional-quality output every time.

CapCut: Long video to shorts

Key Features:

  • Large file support (3 hours / 10GB): Handles very long recordings, like webinars or podcasts, without crashing or slowing down.
  • AI-powered highlight detection: Automatically identifies the most engaging moments in your video for efficient clipping.
  • Automatic multilingual subtitles (20+ languages): Generates accurate subtitles in over 20 languages, enabling global audience reach effortlessly.
  • Flexible clip duration (Auto, <60s, 60–90s, 90s–3m): Lets you control each short clip's length to match platform requirements.
  • Smart vertical formatting with subject focus: Converts horizontal videos to vertical 9:16, keeping the main subject perfectly centered.
  • AI-generated titles & descriptions: Automatically creates engaging titles and descriptions based on video content to save time.
  • One-click publishing to TikTok and YouTube: Directly upload your finished shorts to social platforms in a single step.
Pros
  • Batch generation from a single long video
  • Minimal manual editing required
  • Multilingual support for global reach
  • Consistent visual quality
Cons
  • Requires a stable network for smooth processing

Ideal Users 

CapCut is perfect for content creators repurposing webinars, podcasts, livestreams, or interviews. I personally use it to create multiple Shorts from a single recording, adjust subtitles and templates instantly, and publish directly to social platforms. The AI formatting keeps my subject centered in vertical videos, which is crucial for Reels and TikTok. Tools like CapCut AI long video to short video make this process seamless, and I often rely on it for cross-platform publishing.

Descript – Transcript-Driven Clipping

Descript leverages AI transcription to help me identify highlights quickly. The "Find Good Clips" feature makes turning long videos into shareable shorts much easier without scrubbing through hours of footage manually.

Descript's Long Video to Shorts Convertor


Pros
  • Automatic transcription aligned with video
  • Easy to select segments from text
  • Built-in templates and stock media
Cons
  • Learning curve for advanced editing

User Experience

I enjoy how Descript allows me to select text in the transcript and instantly generate a short clip. While it doesn't batch multiple clips as efficiently as CapCut, the precision for dialogue-heavy content is unmatched. It's especially useful for tutorials or interviews that need exact quotes or timestamps.

Kapwing – Prompt-Driven AI Clip Maker

Kapwing allows me to generate short clips using text prompts. I upload a video or paste a URL, describe which sections I want, and the AI extracts highlights. Its subtitles, translations, and smart framing make it ideal for social-ready content.

Kapwing Clip Generator


Pros
  • Simple, prompt-based workflow
  • Auto subtitles and translations
  • Flexible aspect ratios
Cons
  • Some advanced editing options are limited

User Experience

I use Kapwing when I need to quickly repurpose YouTube videos for TikTok. The prompt workflow is intuitive, though for batch content, it requires more manual input. Its smart framing ensures subjects stay centered in vertical clips.

Pictory – Rapid Highlight Extraction

Pictory's AI scans long videos and automatically generates multiple short clips optimized for social media. It allows me to customize durations, captions, and branding, making the process efficient for multi-platform sharing.

Pictory AI YouTube Shorts Generator


Pros
  • AI-powered scene detection
  • Automatic captions & branding
  • Export in multiple aspect ratios
Cons
  • Limited advanced editing features

User Experience

I often use Pictory to repurpose webinars and online courses. It's fast and reliable, and the AI does most of the heavy lifting. While it doesn't offer CapCut's deep vertical formatting options, it's still a solid choice for quick content repurposing.

FlexClip – Drag-and-Drop Editing with AI Support

FlexClip provides semi-automated AI assistance for trimming and converting long videos. Its drag-and-drop interface is beginner-friendly, and it includes templates, text animations, and media assets to enhance short clips.

FlexClip's Free Long to Short Video Maker


Pros
  • User-friendly interface
  • Extensive template and media library
  • Supports vertical 9:16 formats
Cons
  • AI assistance is limited; mostly manual clipping

User Experience

FlexClip works best when I want more control over visuals and branding. I manually select highlights but can rely on auto subtitles and templates to polish clips quickly. It's ideal for stylized short-form content for marketing or educational purposes.

Practical Use Cases: How I Use CapCut for Long Videos

  • Repurposing Webinars & Podcasts: I often upload recordings up to three hours long, and CapCut's AI quickly detects the most engaging highlights. It generates multiple short clips automatically, adds accurate subtitles, and formats them for vertical viewing, making each segment ready to post on TikTok, Instagram Reels, or YouTube Shorts.
  • Social Media Optimization: When I want my content to perform well on social platforms, I convert horizontal videos into vertical 9:16 format. CapCut ensures the main subject stays centered, automatically adjusts framing, and maintains high visual quality, so my videos look professional and engaging without manual cropping or editing.
  • Global Reach: I rely on CapCut to make my content accessible to international audiences. Its AI automatically creates subtitles in over 20 languages, which saves me countless hours of manual translation. This feature allows my Shorts and Reels to reach viewers worldwide, increasing engagement and visibility.
  • Fast Publishing: After generating and refining clips, I use CapCut online video editor or one-click publishing to instantly upload content to TikTok, YouTube, or other social platforms. This streamlined workflow drastically reduces the time from content creation to distribution, letting me focus on making more videos.

Conclusion

In 2026, AI-powered long video to vertical format converters are essential tools for creators. Among the options, CapCut stands out for its batch generation, smart vertical formatting, and multilingual support. Tools like Descript, Kapwing, Pictory, and FlexClip also excel in specific areas, such as transcript-driven clipping or customizable templates.

For anyone looking to turn long videos into engaging social clips efficiently, I highly recommend CapCut as your starting point to make long video to a short video. Its AI features and publishing capabilities save hours of work while producing high-quality, platform-ready content.

Frequently Asked Questions

    1
  1. What is the best tool to convert long videos to shorts?

The most efficient tool for converting long videos into shorts is CapCut. Its AI automatically detects highlights, generates multiple short clips, formats them vertically, and adds multilingual subtitles. While other tools like Descript or Kapwing can also create short clips, CapCut's batch generation and one-click publishing to TikTok, YouTube, and Instagram make it ideal for fast, high-quality output.

    2
  1. Which long to short tool works best for YouTube content?

For YouTube content, CapCut is the first recommendation. CapCut excels at batch generation, vertical formatting, and fast publishing, making it suitable for creators with long-form videos. In addition, Descript is also useful for dialogue-heavy or tutorial content, as its transcript-based editing allows precise selection of key moments.

    3
  1. How to turn long videos into multiple shorts using AI?

To create multiple shorts from a long video, CapCut can automatically analyze content, detect key highlights, and generate several clips at once. Users can set desired durations, apply vertical formatting, and add captions. Other platforms like Descript or Kapwing offer transcript or prompt-based workflows, but CapCut provides the most efficient and automated process for repurposing long videos quickly.

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