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 X (Twitter) Clips

Convert long YouTube videos into short, vertical clips perfect for X (Twitter) using Vidulk’s AI clipper, which sizes and captions them to X’s requirements.

YouTube Video to X (Twitter) Clips: How to Convert and Share

Step 1: Check Copyright and Source Your Video

Only clip videos you own or have rights to. Download your YouTube video or copy its link if you have permission. Respect copyright rules - never use content you don’t own or control.

Step 2: Use Vidulk’s AI Clipper to Find the Best Moments

Open the Vidulk app (iOS or Android).
Paste your YouTube link or upload the video file.
The AI analyzes the video and suggests 5 - 15 short, vertical clips based on the best moments - ideal for vlogs, podcasts, tutorials, or interviews.

Step 3: Format Clips for X (Twitter) Specs

Choose the vertical (9:16), square (1:1), or landscape (16:9) option depending on your preference. For X, 9:16 or 1:1 are recommended for mobile feeds.
Vidulk exports clips at 720x1280 (vertical), 1280x720 (landscape), or 720x720 (square), matching X’s current specs.
Clips are capped at 140 seconds for non-Premium X accounts. Premium/Premium+ can post longer videos, but vertical clips up to 2:20 are ideal for engagement.

Step 4: Add Captions and Export

Vidulk automatically adds burned-in captions to each clip for accessibility and engagement.
Export your finished clips as MP4 files, ready to upload to X (Twitter).

Step 5: Upload to X (Twitter)

Log in to your X account and upload the exported MP4 clip.
If you want subtitles as a separate file, X web supports SRT attachments, but direct verification may be limited on some help pages.
Preview before posting to ensure the video displays correctly in your feed.

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 for X?

Only use your own videos or those you have rights to. Clipping others’ content without permission is not allowed.

What is the ideal aspect ratio and resolution for X clips?

X recommends 9:16 (vertical), 1:1 (square), or 16:9 (landscape). Use 720x1280 for vertical, 1280x720 for landscape, or 720x720 for square.

Does Vidulk add captions automatically?

Yes, Vidulk burns captions into each clip, making them easy to watch without sound and more accessible.

What is the maximum length for X (Twitter) video clips?

Non-Premium accounts can post clips up to 140 seconds (2:20). Premium/Premium+ accounts can upload longer videos, but short clips are best for engagement.

Is Vidulk free to use?

Vidulk is free to start. You can use the AI clipper on iOS and Android to create and export clips, with some limits or watermarks on free exports.