How to Turn Webinar Videos into X (Twitter) Clips - Sizing, Captions, and Automation

To share the best moments from your webinar on X (Twitter), you need short, vertical clips sized and captioned to X’s specifications. Here’s how Vidulk helps you do it efficiently.

Webinar to X (Twitter) Clips - How to Turn Webinars into

Step 1: Prepare Your Webinar Recording

Start with a high-quality recording of your webinar or online course session. Make sure the video includes clear audio and visuals, as the AI will search for standout moments such as sharp tips, live demos, or strong Q&A responses. If slides and a speaker appear together, keep both visible in the frame.

Step 2: Use Vidulk to Find and Clip Key Moments

  • Open the Vidulk app on iOS or Android.
  • Paste the webinar video link or upload your file.
  • Vidulk’s AI automatically scans the video and extracts the best moments, focusing on tips, demonstrations, and engaging Q&A.
  • You can review the suggested clips, make edits, or select your favorites.

Step 3: Format for X (Twitter) Specs

  • For X, vertical (9:16), square (1:1), and standard landscape (16:9) clips are all supported, but vertical or square maximize mobile engagement.
  • Vidulk automatically resizes clips to 720x1280 (vertical) or 720x720 (square) as recommended.
  • If your webinar shows slides and a speaker, Vidulk can crop both into a vertical split-screen to keep content clear in portrait format.

Step 4: Add Captions for Accessibility

  • Vidulk’s AI generates accurate captions and burns them directly onto the video, ensuring your clips are watchable even without sound.
  • If you prefer, you can export SRT subtitle files and attach them to your video on X via the web uploader, as X supports SRT files for accessibility.

Step 5: Export and Upload to X (Twitter)

  • Export your finished clip from Vidulk. Free exports include a small watermark; a one-time code can remove it.
  • For Non-Premium X accounts, keep clips under 140 seconds. For Premium, up to 2 hours (1080p) or 4 hours (720p) is possible, but short clips (under 2 minutes) typically perform better.
  • Upload your video to X, attach SRT captions if desired, and add a compelling description.

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

What is the best aspect ratio for X (Twitter) clips?

Vertical (9:16) and square (1:1) formats are recommended for X, as they display well on mobile. Vidulk exports in both ratios automatically.

How long should webinar clips for X be?

For Non-Premium accounts, keep clips under 140 seconds (2:20). Premium users can upload longer videos, but short clips (under 2 minutes) are more engaging.

Does Vidulk add captions to my webinar clips?

Yes. Vidulk automatically generates and burns captions onto your clips, or you can export SRT files to upload with your video on X.

Can I include both slides and the speaker in a vertical clip?

Yes. Vidulk can crop and combine slides and speaker video into a vertical split-screen format, so both are visible in mobile-friendly clips.

Is Vidulk free to use?

Vidulk is free to start. Exported clips include a small watermark, which you can remove with a one-time code.