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 Twitch Streams or VODs into Instagram Reels Clips

To convert a Twitch stream or VOD into an Instagram Reels clip, you need to reframe the horizontal video to vertical, trim the best moments, and add captions. Vidulk’s AI Clipper automates this process for fast, spec-ready results.

Twitch Stream / VOD to Instagram Reels Clips: How to Convert

Step 1: Download Your Twitch Stream or VOD

Before you can create Instagram Reels clips, download your Twitch VOD or stream recording. Use Twitch’s download feature (if you’re the channel owner) or record locally with OBS for higher quality. Save your video in a standard format like MP4.

Step 2: Understand Instagram Reels Specs

Aspect Ratio: 9:16 vertical (1080x1920 pixels recommended; 1440x2560 for best quality)
Length: Up to 20 minutes (as of August 2026; most clips are much shorter for engagement)
Captions: Auto-generated in-app or added during editing

Reels require vertical video, so you’ll need to crop and reposition your footage for the right look.

Step 3: Clip and Reframe for Vertical Format

Twitch streams are broadcast in 16:9 horizontal, but Instagram Reels uses 9:16 vertical. For gaming content, a popular approach is splitting the vertical frame: place your face-cam at the top and gameplay at the bottom. Manual editing tools (like Adobe Premiere or CapCut) let you crop and arrange, but this is time-consuming.

Step 4: Automate with Vidulk’s AI Clipper

Vidulk (iOS and Android) streamlines the process. Paste your Twitch video link or upload the file. The AI finds the best moments, reframes the video for vertical, and adds captions. Export your clips ready for Instagram Reels, sized to spec and captioned automatically. This saves significant editing time and ensures your content matches platform requirements.

Step 5: Upload to Instagram Reels

Transfer your exported clips to your phone if needed. Open Instagram, tap the Reels creator, and upload your vertical clip. Use the Captions sticker for extra accessibility if you want to generate captions in-app. Add a description, hashtags, and share your Reel with your 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.

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FAQ

How do I download my Twitch VOD for editing?

Log into your Twitch dashboard, go to Video Producer, and download the VOD. Alternatively, record your stream locally using OBS for higher quality.

What vertical size should I use for Instagram Reels clips?

Use 9:16 aspect ratio, with 1080x1920 pixels standard. For best quality, 1440x2560 is recommended by Meta for Reels ads.

Can Vidulk automatically find the best moments from my Twitch stream?

Yes. Vidulk’s AI Clipper analyzes your Twitch video and selects highlights, then exports them as vertical, captioned clips ready for Instagram Reels.

Do I need to add captions to my Reels clips?

Captions improve accessibility and engagement. Vidulk can add captions automatically, or you can use Instagram’s Captions sticker in the Reels editor.

Is Vidulk available for both iOS and Android?

Yes. Vidulk’s AI Clipper app is available on both iOS and Android devices.