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 TikTok LIVE Replays into LinkedIn Clips, Sized and Captioned

Transforming your TikTok LIVE replays into optimized LinkedIn clips is straightforward with the right steps and tools. Here’s how to size, caption, and automate the process for LinkedIn’s requirements using Vidulk.

TikTok LIVE to LinkedIn Clips - How to Create and Automate

Step 1: Download Your TikTok LIVE Replay

Start by downloading your TikTok LIVE replay from the LIVE Center in your TikTok account. Look for moments that feature Q&A, reactions, or strong takes - these typically make engaging clips for LinkedIn.

Step 2: Understand LinkedIn Video Specs

Length: Up to 15 minutes per video
Aspect Ratio: Any ratio from 1:2.4 to 2.4:1 (vertical 9:16, 4:5, square 1:1, and landscape 16:9 are all accepted)
Resolution: 256x144 up to 4096x2304; recommended 1080x1920 for vertical
Captions: LinkedIn offers auto-captions, but uploading clips with embedded captions ensures accuracy and accessibility

Step 3: Use Vidulk’s AI Clipper

Open the Vidulk app (iOS or Android). Paste or upload your TikTok LIVE replay. Vidulk’s AI Clipper analyzes the video, automatically finds the most engaging moments, and generates short, vertical clips. Select LinkedIn as your destination to ensure the clips are sized correctly and include burned-in captions.

Step 4: Export and Upload to LinkedIn

Export your clips from Vidulk in the optimal vertical format (9:16 or 4:5) with captions included.
Upload to LinkedIn via desktop or mobile. If you prefer LinkedIn-generated captions, you can toggle this option during upload, but having captions in your video ensures they appear instantly and accurately.

Best Practices for LinkedIn Clips

Keep clips focused - highlight a single idea, answer, or reaction.
Use clear captions to boost accessibility and engagement.
Stay within LinkedIn’s accepted formats for smooth playback.
Review the post after uploading to confirm captions and formatting appear as intended.

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 my TikTok LIVE replay?

Go to your TikTok LIVE Center, find the replay, and download it directly to your device for editing.

What video size and format does LinkedIn accept?

LinkedIn allows vertical, square, and landscape videos from 256x144 up to 4096x2304 pixels, with a maximum length of 15 minutes.

Can Vidulk add captions to my LinkedIn clips?

Yes, Vidulk exports clips with embedded captions, ensuring your LinkedIn audience sees accurate subtitles immediately.

Is Vidulk’s AI Clipper available on desktop?

Vidulk’s AI Clipper is available as an app for iOS and Android devices.

Should I use LinkedIn’s auto-captions or Vidulk’s captions?

Using Vidulk’s embedded captions guarantees accuracy and instant visibility, though LinkedIn also offers auto-captions if preferred.