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 X (Twitter) Clips

To share highlights from a Zoom recording on X (Twitter), you need to crop, resize, and caption your video for platform specs. Vidulk’s AI Clipper automates this process for fast, compliant results.

Zoom Recording to X (Twitter) Clips: How to Convert & Automate

Step 1: Export the Right Zoom Recording

After your Zoom meeting or webinar ends, download the cloud or local recording. Speaker view is best, as it captures the active speaker in 16:9 landscape. Always get consent from participants before sharing any clips publicly.

Step 2: Understand X (Twitter) Video Specs

Max length: 140 seconds (Non-Premium), up to 4 hours (Premium)
Aspect ratio: 16:9 (landscape or portrait), or 1:1; accepted range 1:3 to 3:1
Recommended resolution: 1280x720 (landscape), 720x1280 (portrait), 720x720 (square)
Captions: SRT subtitle files can be attached on the web version

Step 3: Use Vidulk to Automate Clipping and Formatting

Vidulk’s AI Clipper (iOS & Android) streamlines the process:

Upload your Zoom recording (paste or import)
The AI finds the best moments and crops to the active speaker
Exports short, vertical (9:16) clips, sized for X (Twitter) specs
Adds hardcoded captions for accessibility and engagement

This saves time compared to manual editing and ensures your clips are ready for X’s requirements.

Step 4: Export and Post to X (Twitter)

Review and download your clips from Vidulk
For captions, you can upload an SRT file with your video on X’s web interface
Post directly from your device or computer, ensuring your video is within the required length and aspect ratio

Best Practices & Compliance

Obtain consent from all participants before sharing clips
Keep clips concise and focused on key moments
Use captions for accessibility and to boost engagement

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 for X (Twitter) vertical clips?

Use Vidulk’s AI Clipper to automatically crop to the active speaker and export vertical (9:16) clips sized for X (Twitter) specs.

What’s the max length for X (Twitter) video clips?

Non-Premium users can upload up to 140 seconds; Premium users can upload much longer videos, up to 4 hours.

Can I add captions to my X (Twitter) video clips?

Yes, X allows SRT subtitle files to be attached when uploading via the web. Vidulk also hardcodes captions into the video.

Does Vidulk work with Zoom recordings?

Yes, you can upload or paste Zoom recordings into Vidulk to generate short, captioned clips optimized for X (Twitter).

Is Vidulk’s AI Clipper available on desktop?

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