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 & VODs into Facebook Reels Clips

To create Facebook Reels clips from your Twitch stream or VOD, you'll need to reformat, crop, and caption your footage for a vertical 9:16 layout. Vidulk automates this process for fast, spec-ready results.

Twitch Stream / VOD to Facebook Reels Clips: How-To

Step 1: Download Your Twitch VOD or Recording

Start by saving your Twitch content. Download your VOD directly from Twitch (if enabled in your settings), or record your stream locally using OBS. Make sure your file is saved in a common video format like MP4 or MOV for easy uploading.

Step 2: Understand Facebook Reels Specs (2026)

Recommended aspect ratio: 9:16 (vertical)
Recommended resolution: 1440x2560 (Meta ad spec) or 1080x1920
No length or format restrictions since June 2025, but short, engaging clips perform best
Captions are optional but highly recommended; auto-captioning is not supported for Reels ads

Step 3: Reframe and Edit for Vertical Video

Twitch clips are 16:9, but Facebook Reels favors vertical. For gaming content, a split layout (face-cam above, gameplay below) works well. Manually, use video editing software to crop and rearrange footage. Ensure key visuals and reactions are visible in the vertical frame.

Step 4: Automate with Vidulk’s AI Clipper

Open the Vidulk app (iOS or Android)
Upload your Twitch VOD or recording
The AI automatically finds highlight moments, reframes them to 9:16, and adds captions sized for Facebook Reels
Export your vertical, captioned clips - ready to upload to Facebook

Step 5: Upload to Facebook Reels

Transfer the exported clips to your computer or phone. Open Facebook, create a new Reel, and upload your video. Double-check the preview to ensure correct framing and readable captions.

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 get my Twitch VOD for editing?

Download your VOD from Twitch's Video Producer or record locally with OBS to get a high-quality source file for clipping and editing.

What is the best aspect ratio for Facebook Reels clips?

A 9:16 vertical aspect ratio is recommended for Facebook Reels. This fills the mobile screen and matches Meta’s ad specs.

Can I add captions to Facebook Reels automatically?

Facebook Reels ads do not support auto-captioning. Use an editing tool or Vidulk’s AI clipper to add captions before uploading.

Does Vidulk work with long Twitch VODs?

Yes, Vidulk's AI clipper is designed to process long videos, automatically finding and exporting the best moments as short vertical clips.

Is there a way to automate Twitch to Reels clipping?

Vidulk automates highlight detection, vertical cropping, and captioning, making it fast to turn Twitch VODs into Facebook Reels-ready clips.