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 YouTube Videos into Instagram Reels Clips

To convert a YouTube video into Instagram Reels clips, use Vidulk’s AI Clipper to extract, resize, and caption the best moments in vertical format, ready for Reels upload.

YouTube Video to Instagram Reels Clips: How to Convert Easily

1. Understand Instagram Reels Clip Requirements

Length: As of August 2026, Reels allows up to 20 minutes if recorded in-app (3 minutes via upload).
Aspect Ratio: 9:16 (vertical) is recommended for full-screen viewing.
Resolution: Standard is 1080x1920 pixels; Meta recommends 1440x2560 for ads.
Captions: Instagram can auto-generate captions, but adding them before upload boosts accessibility.

2. Prepare Your YouTube Video Source

Use only your own videos or content you have rights to clip.
Copy the YouTube link or download the file for upload.

3. Use Vidulk’s AI Clipper for Fast, Accurate Clips

Download Vidulk (iOS or Android) or visit vidulk.com.
Paste your YouTube video link or upload the file.
Vidulk’s AI scans the video and finds 5-15 highlight moments (typical for podcasts, lectures, interviews).
The app exports short, vertical clips, automatically resized to 9:16 and captioned for Instagram Reels.

4. Export and Upload to Instagram Reels

Vidulk exports your clips in MP4 format, sized for Reels.
Transfer the clips to your phone if needed.
Open Instagram, create a new Reel, and upload the clips.
Optionally, use Instagram’s in-app caption sticker for additional subtitles.

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

Can I use Vidulk to clip any YouTube video?

Only use Vidulk to make clips from YouTube videos you own or have permission to use, to respect copyright.

What video size and aspect ratio should I use for Instagram Reels?

Use 9:16 aspect ratio (vertical) and at least 1080x1920 resolution for best results on Instagram Reels.

Does Vidulk add captions to my Reels clips?

Yes, Vidulk’s AI Clipper auto-generates captions for your clips, making them more accessible and engaging.

How many clips can Vidulk make from one YouTube video?

Long videos like podcasts or lectures typically yield 5-15 short, vertical clips with Vidulk’s AI Clipper.

Is Vidulk available on desktop?

Vidulk’s AI Clipper is available as a free app for iOS and Android. Browser-based tools on vidulk.com are for other video mockups.