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.

LinkedIn (Feed Native, Termasuk Vertikal): Spesifikasi Video & Panduan Ekspor Terbaru

LinkedIn mendukung berbagai format dan rasio aspek video untuk feed native, termasuk vertikal. Berikut spesifikasi upload terbaru dan langkah praktis mengekspor klip yang sesuai.

Spesifikasi Video LinkedIn (Feed Native & Vertikal) Terbaru

LinkedIn (native feed video, incl. vertical) video specs (as of 2026-08)
Spec	Value
Max length	15 min (LinkedIn Help 'Video sharing troubleshooting', current article states 15 min with no desktop/mobile split); third-party guides still cite 10 min when uploading via the mobile app; separate LinkedIn Page/Career Page tab videos: 10 min
Aspect ratio	Any ratio from 1:2.4 to 2.4:1 accepted (vertical 9:16 & 4:5, square 1:1, landscape 16:9 all within range); LinkedIn's own video-ad specs list 4:5 (1080x1350), 9:16 (1080x1920), 1:1 (up to 1920x1920), 16:9 (1920x1080) with 5% tolerance; vertical uploads may surface in the mobile full-screen vertical video feed/tab
Resolution	Accepted range 256x144 - 4096x2304; 1080x1920 (9:16) / 1080x1350 (4:5) / 1920x1080 (16:9) max per LinkedIn ad specs
Max file size	5 GB (min 75 KB) for native posts; ads: 500 MB
Frame rate	10-60 fps; bit rate 192 kbps - 30 Mbps
Formats / codecs	MP4, MOV, AVI, WEBM, MKV, WMV, VC1, MPEG/MPEG2/MPEG1VIDEO, DVVIDEO, QTRLE, TSCC2 on desktop/iOS/Android (ProRes may upload but will not process). Note: the older Pages/Career Pages tab-video article says AVI, QuickTime and MOV are NOT supported there and lists AAC/ASF/FLV/MP4/MPEG-1/MPEG-4/MKV/WebM/H264/VP8/VP9/WMV2/WMV3
Captions	Auto captions available to all members and Pages (toggle on during upload; may take time to appear after posting; supported languages: English, Spanish, Portuguese, French, German, Italian, Indonesian, Turkish, Arabic, Dutch); captions editable/removable after posting; SRT closed-caption file can be attached when sharing from desktop; viewers can show/hide CC in the full-screen player
Safe zones	LinkedIn Help: keep the top, bottom and side edges free of key elements, text and logos so they aren't overlapped by the LinkedIn UI - no pixel/percent values published

Sources: https://www.linkedin.com/help/linkedin/answer/a548372 · https://www.linkedin.com/help/linkedin/answer/a1311816 · https://www.linkedin.com/help/linkedin/answer/a1327025 · https://www.linkedin.com/help/linkedin/answer/a552177/add-closed-captions-to-videos-on-linkedin?lang=en · https://www.linkedin.com/help/linkedin/answer/a6290168 · https://business.linkedin.com/advertise/ads/sponsored-content/video-ads/specs · https://www.brandwatch.com/blog/linkedin-video-specs/ · https://blog.sendspark.com/linkedin-video-specs. Specs change - verify in the platform's help center before a big upload.

Spesifikasi Video Feed Native LinkedIn (2026)

LinkedIn memungkinkan upload video langsung ke feed, mendukung format vertikal, persegi, dan landscape. Lihat tabel data di halaman untuk detail paling update. Poin utama:

Durasi maksimal: 15 menit (beberapa upload dari mobile masih dibatasi 10 menit)
Rasio aspek: Mulai dari 1:2.4 hingga 2.4:1 (vertikal 9:16, 4:5, persegi 1:1, landscape 16:9 semuanya diterima)
Resolusi: Dari 256x144 hingga 4096x2304 (umum: 1080x1920 untuk vertikal, 1920x1080 untuk landscape)
Ukuran file maksimal: 5 GB
Frame rate: 10 hingga 60 fps
Format/kodek: MP4, MOV, AVI, WEBM, MKV, WMV, dan lainnya (upload ProRes tidak akan diproses)
Caption: Caption otomatis bisa diaktifkan; upload file SRT dari desktop; caption bisa diedit setelah posting

Zona Aman & Overlap UI

LinkedIn menampilkan elemen antarmuka di tepi video, terutama di feed mobile dan pemutaran vertikal layar penuh. Agar teks atau logo penting tidak tertutup, pastikan semua konten utama tidak terlalu dekat dengan tepi atas, bawah, dan samping. LinkedIn tidak mempublikasikan nilai piksel zona aman secara pasti, jadi gunakan margin aman yang cukup.

Ekspor Klip untuk LinkedIn (Vertikal & Format Lain)

Untuk hasil terbaik, ekspor video Anda dengan rasio aspek dan resolusi yang didukung. Untuk video vertikal, 1080x1920 (9:16) adalah pilihan optimal. Selalu encode ke MP4 (H.264/AAC) untuk kompatibilitas maksimal. Batasi durasi video hingga 15 menit dan 5 GB. Gunakan frame rate antara 24–30 fps agar pemutaran mulus. Jika menambah caption, ekspor file SRT atau gunakan fitur auto-caption LinkedIn.

Jika ingin cepat membuat klip pendek vertikal dari video panjang, aplikasi Vidulk (iOS & Android) memakai AI untuk memilih momen terbaik dan mengekspor dengan caption, sudah disesuaikan untuk LinkedIn dan platform lain.

Tips Upload & Masalah Umum

Di iOS, upload akan berhenti jika aplikasi LinkedIn ditutup; pastikan aplikasi tetap terbuka sampai selesai.
Video yang tersimpan di iCloud tidak bisa diupload langsung dari mobile – pindahkan dulu ke penyimpanan lokal.
Jika video ditolak, cek ukuran file, durasi, dan kecocokan codec sesuai tabel di atas.
Caption otomatis LinkedIn mungkin butuh waktu muncul setelah posting; Anda bisa edit atau hapus setelahnya.

Spesifikasi Bisa Berubah: Selalu Cek Ulang

LinkedIn rutin memperbarui spesifikasi video. Sebelum upload penting, cek persyaratan terbaru di Pusat Bantuan LinkedIn untuk menghindari masalah kompatibilitas.

Ekspor klip sesuai spesifikasi LinkedIn otomatis – Vidulk ubah ke 9:16, tambahkan caption, dan potong durasi. Gratis di iOS & Android.

Vidulk

FAQ

Berapa durasi maksimal video untuk upload feed native LinkedIn?

Durasi maksimal saat ini adalah 15 menit untuk upload feed native, namun beberapa upload dari mobile masih dibatasi 10 menit.

Rasio aspek apa saja yang didukung untuk video feed LinkedIn?

LinkedIn menerima rasio aspek dari 1:2.4 hingga 2.4:1, termasuk vertikal 9:16, 4:5, persegi 1:1, dan landscape 16:9.

Bagaimana cara menambah caption pada video LinkedIn?

Anda bisa mengaktifkan caption otomatis saat upload, atau menambahkan file SRT dari desktop. Caption bisa diedit atau dihapus setelah posting.

Format ekspor apa yang direkomendasikan untuk video LinkedIn?

Ekspor ke MP4 (H.264/AAC) untuk kompatibilitas maksimal. Pastikan ukuran file, durasi, dan resolusi sesuai batas yang ditentukan.

Bagaimana cara membuat klip vertikal untuk LinkedIn?

Gunakan editor video untuk ekspor di 1080x1920 (9:16), atau coba fitur AI clipper di aplikasi Vidulk (iOS & Android) untuk membuat klip vertikal dengan caption dari video panjang.