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.

LINE Chat Video Maker - Export Animated Fake Chats for Socials

Create realistic LINE chat videos for TikTok, Reels, and Shorts in minutes. No app or signup needed - just use Vidulk's free online generator below.

Start from a template

All templates →

Fake Chat Video Generator

Build a realistic conversation, then download it as a video (with typing + sounds) or a screenshot. Free, in your browser — nothing is uploaded.

Platform

Contact nameStatus lineChat timestampAvatar (optional)

Dark modeRead receipt (Read)

Messages

You up? I have to tell you something 😳
It's 2am… this better be good
You will NOT believe what just happened

9:41

Alex

online

Today 2:02 PM

You up? I have to tell you something 😳

It's 2am… this better be good

You will NOT believe what just happened

vidulk.com

Video pacing

Remove the watermark

Made by Vidulk — the AI app that turns long videos into viral clips.

LINE Chat Video Maker - Export Animated Fake Chats for Socials

How to Make a Fake LINE Chat Video Online

Open the LINE chat video generator on this page (no download required).
Set your contact name and group details for an authentic LINE look.
Type your messages: green bubbles for sent, white for received. Add big LINE stickers and use the 'Read' label for realism.
Arrange messages in sequence - family or friend-group stories work best for Asian audiences.

Export as Animated MP4 for TikTok, Reels & Shorts

Choose 'Export as MP4' to create an animated vertical video (9:16 ratio).
The video plays out message by message, with typing indicators and sound effects.
Adjust playback speed to fit your story (aim for 15-40 seconds).
Free exports include a small watermark; use a one-time code to remove it if needed.

Tips for Viral Chat Videos

Start with a strong hook in your first message to grab attention.
Build tension or humor - cut on a cliffhanger to boost shares and engagement.
Keep messages short and visually clear for mobile viewers.

Responsible Use

Vidulk's fake LINE chat video maker is for entertainment, memes, skits, and mockups only. Never use it to impersonate real people or mislead others.

Make it now - the free generator is on this page, preset to this platform. Export as video or screenshot.

Try Vidulk

FAQ

Can I export my LINE chat video without a watermark?

Yes. Free exports include a small watermark, but you can remove it instantly with a one-time code.

Is the LINE chat video maker really free?

Yes, you can use Vidulk's LINE chat video generator and export videos for free, with an optional watermark.

Do I need to install an app or sign up?

No app or signup is needed. The LINE chat video maker runs directly in your browser.

What platforms are the exported videos ready for?

Exports are vertical MP4s, perfect for TikTok, YouTube Shorts, and Instagram Reels.

Can I add LINE stickers and 'Read' labels?

Yes. You can add big LINE stickers and the 'Read' label to make your fake chat look authentic.