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 Zoom Recordings Into Instagram Reels Clips

To post highlights from a Zoom recording on Instagram Reels, you’ll need to crop, resize, and caption your video to fit Reels specs. Vidulk streamlines this process with AI-powered clipping and formatting.

Zoom Recording to Instagram Reels Clips: How to Convert

Step 1: Export Your Zoom Recording

After your Zoom meeting, webinar, or interview, download the recording from Zoom (cloud or local). Use the "Speaker View" export for a clear view of the active speaker - this is usually in 16:9 horizontal format.

Step 2: Get Consent Before Sharing

Before posting any clips from a Zoom recording, always obtain consent from all participants who appear in the video. This is essential for privacy and compliance.

Step 3: Convert to Vertical and Crop for Reels

Instagram Reels works best with a 9:16 vertical aspect ratio (1080x1920 pixels standard, up to 1440x2560 for ads).
Crop your 16:9 Zoom recording to focus on the speaker. Manual editors can do this, but it’s tedious.

Step 4: Use Vidulk to Automate Clipping and Formatting

Open the Vidulk app (iOS or Android).
Paste your Zoom recording link or upload the video file.
Vidulk’s AI finds engaging moments, crops to vertical, and exports clips sized for Instagram Reels.
Clips are auto-captioned for accessibility. You can review and edit captions before posting.

Step 5: Upload to Instagram Reels

Instagram Reels allows videos up to 20 minutes (recorded in-app as of August 2026), but shorter clips (15 - 60 seconds) tend to perform better.
Upload your vertical, captioned clips directly from your phone.
You can also use Instagram’s built-in Captions sticker for additional captioning if needed.

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 crop a Zoom recording to vertical for Instagram Reels?

You can use editing software or Vidulk’s AI clipper, which automatically crops speaker view to a 9:16 format for Reels.

What is the best length for Instagram Reels clips from Zoom?

While Reels allows up to 20 minutes, clips between 15 and 60 seconds usually perform best for engagement.

Can I add captions to my Zoom-to-Reels clips?

Yes. Vidulk auto-generates captions, and you can also use Instagram’s Captions sticker in the Reels editor.

Are there any privacy concerns with posting Zoom recordings?

Yes. Always get explicit consent from everyone featured in the Zoom recording before sharing clips publicly.

Do I need to pay to use Vidulk’s AI clipper?

Vidulk is free to start, with AI-powered clipping and formatting available in the iOS and Android app.