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 Videos into Facebook Reels Clips

To convert a webinar into short, vertical Facebook Reels clips, you need to select key moments, crop for 9:16, and add captions. Vidulk automates these steps for you.

Webinar to Facebook Reels Clips - How to Turn Webinars into

Key Facebook Reels Specs for Webinar Clips

Aspect Ratio: 9:16 vertical is recommended for full-screen viewing.
Resolution: 1440x2560 (recommended), 1080x1920 also accepted.
Length: No strict limit or format restrictions as of June 2025; any video posts as a Reel.
Captions: Optional but highly recommended. Facebook Reels ads do not auto-generate captions.

Steps to Clip Webinars for Facebook Reels

Identify Key Moments: Pull out sharp tips, demo highlights and strong Q&A answers from your webinar. These are most engaging for short-form audiences.
Crop and Compose: Crop slides and speaker into a vertical split-screen format (9:16) for clarity and engagement.
Add Captions: Manually add or use tools to generate accurate captions, since Facebook Reels ads do not auto-caption.
Export at Proper Resolution: Save your clip in 1440x2560 or 1080x1920 pixels for best results on Facebook Reels.

How Vidulk Automates Webinar to Reels Clips

Vidulk's free AI Clipper (iOS & Android) streamlines this process:

Paste your recorded webinar link or upload the file.
The AI automatically scans for the best moments - sharp tips, demos, and Q&A answers.
It crops the video into a vertical 9:16 format, splitting slides and speaker if needed.
Auto-captions are added to the clips for accessibility and engagement.
Export your clips sized for Facebook Reels (vertical, up to 1440x2560).

Best Practices for Webinar to Reels Transformation

Keep clips concise (15 - 60 seconds) to maximize engagement.
Prioritize moments with clear visuals and actionable advice.
Review and edit AI-generated captions for accuracy.
Test different hooks and formats to see what resonates on Facebook Reels.

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

What is the best aspect ratio for Facebook Reels clips?

9:16 vertical is recommended for Facebook Reels. Landscape and square are also accepted, but vertical gives the best full-screen experience.

How does Vidulk pick the best moments from a webinar?

Vidulk's AI scans the video for highlights like sharp tips, demo moments, and key Q&A answers, then creates short clips from these segments.

Are captions required for Facebook Reels?

Captions are optional but recommended. Facebook Reels ads do not auto-generate captions, so add them manually or with a tool like Vidulk.

What resolution should I use for Facebook Reels clips?

1440x2560 pixels is the recommended resolution for Facebook Reels. 1080x1920 is also widely used and accepted.

Can I use Vidulk to turn any webinar into Facebook Reels clips?

Yes, you can upload or paste the link to any recorded webinar, and Vidulk will help you generate vertical, captioned clips sized for Facebook Reels.