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 a Twitch Stream or VOD into LinkedIn Clips

To share highlights from your Twitch stream or VOD on LinkedIn, you’ll need to reformat and caption short vertical clips. Here’s how to do it efficiently and how Vidulk can help automate the process.

Twitch Stream / VOD to LinkedIn Clips: How to Create

1. Download Your Twitch Stream or VOD

Start by downloading your Twitch VOD or stream recording. You can do this directly from your Twitch dashboard if you're a Twitch Partner, Affiliate, or have VODs enabled, or use OBS to record your stream locally for higher quality and easier access.

2. Understand LinkedIn Video Specs

Maximum length: 15 minutes per video
Aspect ratios: LinkedIn accepts vertical (9:16, 4:5), square (1:1), and landscape (16:9) formats
Resolution: From 256x144 up to 4096x2304; 1080x1920 (vertical) is optimal for mobile
Captions: LinkedIn can auto-generate captions during upload, but uploading your own ensures accuracy

3. Clip and Reframe for Vertical Format

Twitch clips are horizontal (16:9), but LinkedIn supports vertical. For best results, reframe your content: split-screen with your face-cam and gameplay stacked, or focus on the most engaging area. Manual editing tools work, but this is time-consuming.

4. Automate Highlight Creation with Vidulk

Vidulk’s AI Clipper (iOS and Android) streamlines this process. Paste your Twitch VOD or recording into the app. Vidulk automatically detects the best moments, reframes them into vertical 9:16 or 4:5 clips, and adds captions. You can export LinkedIn-ready videos in minutes instead of editing manually.

5. Upload to LinkedIn

Go to LinkedIn and start a new post
Attach your Vidulk-exported video
Enable captions if you didn’t burn them in
Add a description and post

Your Twitch highlights are now optimized for LinkedIn’s feed and professional audience.

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 download a Twitch VOD for editing?

Log in to your Twitch dashboard, go to 'Content' > 'Video Producer', find your VOD, and click 'Download'. You can also record locally using OBS.

What video size and aspect ratio work best for LinkedIn clips?

Vertical (9:16, 1080x1920), square (1:1), and landscape (16:9) all work. Vertical is ideal for mobile viewers.

Does LinkedIn auto-generate captions, or do I need to add them?

LinkedIn can auto-generate captions during upload, but uploading your own or burning them in ensures greater accuracy.

What does Vidulk automate in this process?

Vidulk automatically finds highlights in your Twitch video, reframes them vertically, adds captions, and exports LinkedIn-ready clips.

Is Vidulk available for desktop?

Vidulk’s AI Clipper is available as a mobile app for iOS and Android. Use the app to process and export your clips.