Long Video to Short Video
Turn long YouTube videos, podcasts, and webinars into high-engagement vertical Shorts, Reels & TikTok clips. 100% free, AI auto-clipping, animated captions, and no watermark.
Upload Long Video to Create Viral Shorts
Drag & drop your MP4, WebM, or MOV file here, or choose an option below
Rendering Viral Short
Synthesizing 60 FPS video canvas & subtitles...
Essential Video & Image Creator Tools
Explore our suite of high-performance media utilities
Everything You Need for Viral Social Growth
Transform hours of raw long-form footage into captivating, high-retention micro-content in seconds.
AI Viral Hook & Peak Energy Detection
Our intelligent algorithm scans audio waveforms, volume dynamics, and scene shifts to automatically pinpoint high-retention moments and punchlines.
Smart 9:16 Portrait Reframing
Automatically convert 16:9 widescreen videos to 9:16 portrait. Choose from dynamic blurred background glassmorphism, center crop, or split-screen.
Viral Animated Karaoke Subtitles
Engage viewers with viral caption styles inspired by Alex Hormozi and MrBeast. Features word-by-word synchronized highlighting and dynamic text animations.
Dynamic Header Hook & Progress Bar
Add bold header headline hooks and real-time retention progress bars that keep mobile viewers watching all the way through to the end.
100% Client-Side Privacy Protection
All video processing and rendering occurs entirely inside your web browser. No files are uploaded to remote servers, ensuring absolute privacy.
Batch Export & SRT Captions
Export multiple viral shorts simultaneously in a compressed ZIP package, or download synchronized .SRT caption files for social platform uploads.
How to Make Shorts from Long Videos in 3 Easy Steps
A streamlined, production-grade workflow built for YouTubers, podcasters, and content marketers.
Upload Long Video
Select your MP4, WebM, or MOV long video file, record live from your webcam, or try our built-in sample podcast masterclass demo.
Auto-Detect & Customize
Our AI algorithm highlights viral moments. Choose your 9:16 reframe mode, customize header hook text, and select your animated subtitle style.
Export 60fps Viral Shorts
Download crisp 60fps MP4/WebM vertical videos instantly with zero watermark, or download all detected shorts in a single ZIP bundle.
AI Long Video to Short Video: The Ultimate Content Repurposing Guide
In the modern digital landscape, short-form vertical video has become the dominant driver of organic audience engagement, algorithmic reach, and brand discovery. Platforms such as YouTube Shorts, TikTok, and Instagram Reels prioritize fast-paced, high-retention content that hooks viewers within the first three seconds. However, manually editing long-form podcasts, webinars, interviews, keynote speeches, and YouTube videos into punchy shorts is notoriously tedious and time-consuming. This is where AI long video to short video generator tools revolutionize the content creation workflow.
What is AI Long Video to Short Video Clipping?
AI video clipping technology automatically analyzes long-form audio-visual media to identify the most compelling, high-energy segments. By decoding acoustic waveform dynamics (RMS loudness, pitch variance, and speech cadence) alongside visual scene transitions, the artificial intelligence algorithm isolates stand-alone conversational hooks, profound insights, and climactic moments. It then reformats traditional 16:9 horizontal widescreen video into an immersive 9:16 vertical portrait aspect ratio, using intelligent facial tracking, smart center cropping, or aesthetic blurred glassmorphism backgrounds.
How Creators Maximize Engagement with Auto-Captions
Over 80% of mobile social media users watch vertical feeds with their sound muted or at low volume. To capture and maintain viewer retention, modern auto-clip generators synthesize animated, word-by-word synchronized captions. Popularized by top creators like Alex Hormozi and MrBeast, these dynamic subtitles utilize high-contrast color palettes (such as electric yellow, lime green, and bold cyber cyan) with bounce and highlight animations. Synchronized subtitles not only dramatically increase watch time and algorithmic completion rates, but also make your content accessible to diverse global audiences.
Real-World Use Cases and Practical Workflow
For podcasters, repurposing a 60-minute conversational recording into ten 30-second highlight shorts can expand reach tenfold without requiring additional recording sessions. Educators and online course creators can extract concise tips to build promotional teaser reels. Similarly, gamers, fitness coaches, and corporate marketers use automatic clipping to publish daily cross-platform content effortlessly. With our client-side processing engine, you enjoy total data privacy, zero server uploads, no watermarks, and instantaneous 60fps video downloads.
Got Questions? We Have Answers
Everything you need to know about transforming long videos into viral social shorts.
Our client-side AI engine parses the audio track using the Web Audio API to calculate RMS energy spikes, speech frequency, and dialogue pauses. Simultaneously, canvas scene-differencing detects motion shifts to identify standalone viral segments. The system then automatically applies 9:16 vertical reframing, animated captions, and progress bars.
Yes, absolutely! You can upload any podcast episode, interview, keynote, or lecture video. The studio formats the clip into standard 9:16 portrait (1080x1920) or 1:1 square, perfectly ready for instant publishing to YouTube Shorts, Instagram Reels, and TikTok.
Yes! SEOWebChecker provides this tool 100% free with zero watermarks. Because all rendering happens directly in your browser using modern Web Codecs and Canvas APIs, there are no subscription fees or export restrictions.
We provide 6 high-converting subtitle templates including Alex Hormozi (bold yellow bounce), MrBeast (high-contrast red box highlight), Cyber Neon (cyan glow), Word-by-Word Karaoke burst, Minimal Aesthetic (dark pill backdrop), and Classic TikTok outline.
Your video is processed 100% locally in your web browser. Neither your original video footage, audio streams, nor rendered short clips ever leave your device or get uploaded to cloud servers, ensuring total data security and privacy.
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