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 Podcast Episodes into X (Twitter) Clips

To share podcast highlights on X (Twitter), you need short, vertical, captioned clips that fit X’s video specs. Here’s how to do it efficiently using Vidulk’s AI clipper.

Podcast episode to X (Twitter) Clips - How to Create

1. Understand X (Twitter) Video Clip Requirements

Length: Up to 140 seconds (Non-Premium); up to 4 hours (Premium), but short clips (30 - 60 seconds) perform best.
Aspect Ratio: 16:9 (landscape or portrait) or 1:1. Portrait (9:16) or square (1:1) are recommended for mobile engagement.
Resolution: 1280x720 (landscape), 720x1280 (portrait), or 720x720 (square).
Captions: X supports SRT subtitle files on web uploads. Burned-in captions are widely used for accessibility and engagement.

2. Identify the Best Podcast Moments

The most effective X clips feature a hot take, a funny moment, a compelling story, or a practical tip. Aim for 30 - 60 seconds, with guest names visible on-screen. Manual review works, but Vidulk’s AI clipper can automatically find these highlights for you.

3. Use Vidulk’s AI Clipper to Automate Clip Creation

Download Vidulk (iOS or Android).
Paste your podcast video (or audio with a visualizer) into Vidulk.
The AI scans the episode and suggests the best moments as short clips.
Export vertical clips sized for X, with burned-in captions and guest name overlays.

4. Export and Upload Your Clip to X

Choose the vertical (9:16) or square (1:1) export option in Vidulk for optimal mobile viewing.
Ensure captions are burned in, or attach an SRT file if uploading via X’s web interface.
Upload your clip directly to X (Twitter), add a descriptive caption, and tag relevant accounts for reach.

5. Tips for Maximizing Engagement on X

Start with an attention-grabbing moment.
Keep visuals clear and text legible.
Include captions for silent viewing.
Tag guests and use relevant hashtags.

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 length for podcast clips on X (Twitter)?

30 - 60 seconds is ideal for engagement, though X allows up to 140 seconds for standard users.

Does Vidulk automatically add captions to clips?

Yes, Vidulk’s AI clipper burns captions into your exported clips, making them accessible and engaging.

Which video aspect ratio should I use for X (Twitter) clips?

Portrait (9:16) or square (1:1) work best for mobile viewers, both supported by X.

Can I use Vidulk for audio-only podcasts?

Yes, you can upload audio with a visualizer to Vidulk and create shareable video clips.

How do I add SRT subtitles to my X (Twitter) videos?

When uploading via X’s web interface, you can attach an SRT file with your video. Alternatively, use burned-in captions.