Best AI Tools to Automatically Create YouTube Shorts from Long Videos
5/25/2025
|Team CapsAI
Transforming lengthy videos into viral Shorts can be time-consuming—unless you leverage AI. These tools analyze your footage, identify key moments, reformat them to vertical 9:16, and even add captions and effects automatically. Here are the top AI platforms to streamline your Shorts production in 2025:
CapsAI
CapsAI's “Smart clips” feature uses its transcript-based editing engine to detect high-energy segments in your long-form video. Simply upload your file, let CapsAI generate a script, and select “Export.” It automatically reformats to 9:16, adds captions, and can even suggest punchy hooks based on sentiment analysis.
VEED
VEED’s AI “Best Bits” tool scans your video for audience engagement indicators - laughter, applause, or spike in volume - rlays, auto-translate captions, and apply one-click vertical presets to ensure perfect Shorts formatting.
Pictory
Pictory specializes in turning scripts and webinars into bite-sized clips. Its “Highlight Reel” AI automatically extracts the most viewed or most discussed sections of your uploaded webinar or podcast, reformats to vertical, and generates SRT captions. Ideal for creators repurposing educational content.
Kapwing
Kapwing’s AI “Smart Cut” feature analyzes scene changes and visual interest points to auto-create a vertical Short. It also leverages speech recognition to auto-add and style captions. You can further fine-tune with drag-and-drop templates built for YouTube Shorts, Instagram Reels, and TikTok.
InVideo
InVideo’s AI Assistant transforms long videos into engaging Shorts by identifying keywords in your narration and matching them to dynamic text animations and transitions. After uploading, select the “Shorts” preset, choose your clip duration, and let InVideo generate a fully-edited vertical video with royalty-free music.
Clipchamp
Microsoft’s Clipchamp offers an “Auto Storyboard” mode where you import your long video, define a target clip length, and the AI chooses the best shots, applies motion-graphics intros, and syncs a trending audio track. Exports natively in 9:16, ready for YouTube’s Shorts shelf.
Lumen5
Originally designed for turning blog posts into videos, Lumen5 now supports long-to-short repurposing. Its AI scans both video and accompanying text (like scripts or captions), then crafts a concise Short with on-screen text, background music, and a vertical template - perfect for educational and informational content.
Wisecut
Wisecut uses AI to remove long pauses, silences, and filler words from your video, then groups the most engaging moments into a short reel. It auto-encodes in vertical format, adds background music fading behind your voice, and inserts captions - requiring zero manual editing.
Each of these AI-powered platforms can take hours of tedious clipping and reformatting down to minutes - helping you maintain a consistent Shorts publishing cadence without sacrificing quality. Try a few to see which best matches your workflow, content type, and budget.
Transforming lengthy videos into viral Shorts can be time-consuming—unless you leverage AI. These tools analyze your footage, identify key moments, reformat them to vertical 9:16, and even add captions and effects automatically. Here are the top AI platforms to streamline your Shorts production in 2025:
CapsAI
CapsAI's “Smart clips” feature uses its transcript-based editing engine to detect high-energy segments in your long-form video. Simply upload your file, let CapsAI generate a script, and select “Export.” It automatically reformats to 9:16, adds captions, and can even suggest punchy hooks based on sentiment analysis.
VEED
VEED’s AI “Best Bits” tool scans your video for audience engagement indicators - laughter, applause, or spike in volume - rlays, auto-translate captions, and apply one-click vertical presets to ensure perfect Shorts formatting.
Pictory
Pictory specializes in turning scripts and webinars into bite-sized clips. Its “Highlight Reel” AI automatically extracts the most viewed or most discussed sections of your uploaded webinar or podcast, reformats to vertical, and generates SRT captions. Ideal for creators repurposing educational content.
Kapwing
Kapwing’s AI “Smart Cut” feature analyzes scene changes and visual interest points to auto-create a vertical Short. It also leverages speech recognition to auto-add and style captions. You can further fine-tune with drag-and-drop templates built for YouTube Shorts, Instagram Reels, and TikTok.
InVideo
InVideo’s AI Assistant transforms long videos into engaging Shorts by identifying keywords in your narration and matching them to dynamic text animations and transitions. After uploading, select the “Shorts” preset, choose your clip duration, and let InVideo generate a fully-edited vertical video with royalty-free music.
Clipchamp
Microsoft’s Clipchamp offers an “Auto Storyboard” mode where you import your long video, define a target clip length, and the AI chooses the best shots, applies motion-graphics intros, and syncs a trending audio track. Exports natively in 9:16, ready for YouTube’s Shorts shelf.
Lumen5
Originally designed for turning blog posts into videos, Lumen5 now supports long-to-short repurposing. Its AI scans both video and accompanying text (like scripts or captions), then crafts a concise Short with on-screen text, background music, and a vertical template - perfect for educational and informational content.
Wisecut
Wisecut uses AI to remove long pauses, silences, and filler words from your video, then groups the most engaging moments into a short reel. It auto-encodes in vertical format, adds background music fading behind your voice, and inserts captions - requiring zero manual editing.
Each of these AI-powered platforms can take hours of tedious clipping and reformatting down to minutes - helping you maintain a consistent Shorts publishing cadence without sacrificing quality. Try a few to see which best matches your workflow, content type, and budget.