Vidulk is an AI-powered mobile app for iOS and Android that turns long videos and audio into viral short-form clips. It also includes an AI image studio and professional caption editor.

How does AI clip detection work?

Import a video or paste a link — Vidulk transcribes the audio using AI speech recognition that supports 99 languages, then analyzes the transcript to find the most engaging moments. Each clip is scored by virality potential and categorized as Insight, Story, Funny, Tactical, Controversial, or Emotional.

What languages does Vidulk support?

Vidulk supports speech recognition in 99 languages including English, Spanish, French, German, Korean, Japanese, Chinese, Arabic, Hindi, Portuguese, and many more. The app interface is available in over 30 languages. Language is detected automatically.

What caption and editing features are available?

Vidulk includes 7 caption styles (Highlight, Karaoke, Typewriter, Minimal, Bold Pop, Gradient, and more), customizable fonts, colors, and animations. Export in multiple aspect ratios (9:16 for Shorts/Reels, 1:1 Square, 4:5 Portrait, 16:9 Landscape) at up to 4K resolution.

What is the AI Image Studio?

AI Studio lets you generate thumbnails and images from text prompts with 6 artistic styles including Realistic, Illustrated, Abstract, Minimalist, Anime, and Watercolor. It also includes an Image Enhancer that upscales images 2x or 4x. All processing happens on-device for privacy.

What content types does Vidulk work with?

Vidulk is optimized for podcasts, YouTube videos, interviews, lectures, gaming highlights, vlogs, music, sports, and news content. Import from YouTube, TikTok, Instagram, Twitter/X, Facebook, or upload directly from your camera roll.

Does Vidulk work with long videos?

Yes. Vidulk handles videos of any length. Short videos are processed on-device, while longer videos (over 5 minutes) are processed using server-side AI for faster and more reliable results.

What platforms is Vidulk available on?

Vidulk is available on both iOS (App Store) and Android (Google Play Store). The app interface is available in over 30 languages.

Yes. Video transcription and AI image processing happen on-device. Your videos are not stored on external servers permanently. You can delete your account and all data at any time from the app settings.

Can I use Vidulk for audio-only content like podcasts?

Yes. Vidulk fully supports audio-only content. Import MP3, M4A, WAV, or other audio files. AI detects the best moments and you can add AI-generated background images or choose from 1,200+ built-in backgrounds to create video clips from audio.

Can Vidulk remove captions or subtitles from videos?

Yes. Vidulk includes AI-powered caption removal that automatically detects and removes burned-in captions and subtitles from your videos before clipping. It works best with dynamic/moving captions like those on TikTok, Reels, and YouTube. Enable it with a simple checkbox when importing your video. Processing takes 7-20 minutes and uses additional credits based on video length.

How do I export clips from Vidulk?

After editing, choose your aspect ratio (9:16, 1:1, 4:5, or 16:9), resolution (720p, 1080p, or 4K), and export. Clips are saved directly to your Photos library and can be shared instantly to any platform.

How to Turn Webinar Recordings into YouTube Shorts Clips

To convert a webinar into YouTube Shorts clips, extract key moments, format them vertically, and ensure captions and sizing match Shorts requirements. Vidulk's AI Clipper streamlines this process for you.

Webinar to YouTube Shorts Clips: How to Create Vertical Clips

1. Understand YouTube Shorts Requirements

YouTube Shorts must be vertical (9:16) or square (1:1) and no longer than 3 minutes. The ideal resolution is 1080x1920. Clips wider than this will not count as Shorts. YouTube auto-generates captions, but adding clear, accurate captions before uploading is recommended for accessibility and engagement.

2. Identify the Best Moments in Your Webinar

Look for concise tips, visual demos, or audience Q&A - these are most engaging in short form.
Focus on moments that provide standalone value or answer a specific question.
Crop the video to highlight both slides and speaker, using a vertical split if needed.

3. Use Vidulk AI Clipper to Automate the Process

With Vidulk’s AI Clipper (iOS + Android), paste your webinar link or upload the video. The AI scans the content, automatically finds impactful moments, and creates short, vertical clips. Each clip is sized for YouTube Shorts and includes clear captions.

No manual editing needed - the AI selects, crops, and captions for you.
Clips are exported in the correct aspect ratio and resolution for YouTube Shorts.

4. Finalize and Upload to YouTube Shorts

Review each exported clip for quality and accuracy.
Upload to YouTube. Shorts are automatically detected if they meet length and aspect ratio requirements.
YouTube will auto-generate captions, but you can edit them in YouTube Studio if needed.

5. Tips for Effective Webinar Shorts

Keep intros minimal - get straight to the value.
Use captions for clarity, especially if your original audio isn’t perfect.
Choose clips that make sense without full webinar context.

Vidulk's AI clipper (free to start, iOS + Android) finds the best moments in a long video and exports captioned vertical clips sized for the destination.

Try Vidulk

FAQ

How do I make a vertical clip from a webinar for YouTube Shorts?

Use a tool like Vidulk’s AI Clipper to automatically crop, size, and caption the best moments in vertical (9:16) format, ready for Shorts.

What is the maximum length for a YouTube Short?

YouTube Shorts can be up to 3 minutes long, as long as the video is vertical or square and uploaded after October 15, 2024.

Does Vidulk add captions to my webinar clips?

Yes, Vidulk’s AI Clipper exports each short clip with clear, readable captions tailored for short-form platforms.

Can I use Vidulk for free?

Vidulk offers free access to its AI Clipper for creating short, captioned clips from your long videos on iOS and Android.

Do I need to edit the captions after uploading to YouTube?

YouTube auto-generates captions, but you can review and edit them in YouTube Studio for accuracy after upload.