Export and render

The Export step (Preview & export) turns your built video into full-quality MP4 files, one for each format you need. Rendering happens on your computer, in the background.

#Check it's ready

At the top of the step, the Ready to render? checklist shows whether everything the render needs is in place. For an animated video it checks:

• Script written
• Voiceover synced (or "Voiceover missing or out of date")
• Animation built (or "Animation not built yet")
• Animation matches the voiceover (or "Animation timed to an older voiceover")

Each item that isn't ready has a Fix link that takes you to the step where you fix it. For Event Recaps the checklist also covers the media and the storyboard; see Event recaps.

#Preview each format

Below the checklist you can preview the video in each format before you render. Watch every format you plan to use: a layout that works in landscape can feel cramped in a vertical reel.

#Formats and sizes

Every render is an MP4 file (H.264) at 30 frames per second. All plans include all three formats.

#Render the video

1. In the Render card, tick the formats you want.
2. Click Render video (or Render N videos if you ticked more than one).

Renders run in the background. You can keep working in DemoVexa, open another project, or close the browser tab. The project card and the Activity page show progress, and DemoVexa can send a system notification when a render finishes if you turn on Notify me when builds and renders finish on the Activity page.

#Download

Each finished render has an MP4 button. Click it to download the file.

You can also play and download finished videos from the Projects page: hover over the project's card, click the play button and pick a version. See Projects and video types.

#A format that hasn't been built

If you want a format that wasn't chosen in the brief, the video hasn't been built for it yet. The Export step shows Ask Claude to add it next to that format. Click it and Claude builds the missing format; then render it as usual.

If you try to render a format that wasn't built, the render fails with a message like "Could not find composition …Reel". The fix is the same: use Ask Claude to add it.

#Rendering without a voiceover

If the voiceover is missing or out of date when you click Render video, DemoVexa asks Render without a voiceover? The video will then have music only. Click Render anyway to go ahead, or cancel and generate the voiceover in the Voice step first.

#Renders and your plan

Renders count towards your DemoVexa plan's monthly allowance. See Plans and usage.

#Next

When your videos are rendered, click Write the posts.

• Posts, blog and covers
• Troubleshooting renders
• Plans and usage