OneCraft

How to

Make a promo video with AI voiceover

Describe your idea, let AI build a styled video with scenes and an AI voiceover, then refine the script and export a finished clip.

Short promo videos get attention, but editing one from scratch takes time. Starting from a description gets you a structured first cut you can refine.

Describe the idea

Tell the video generator what you’re promoting and who it’s for. A clear brief gives AI enough to draft a coherent sequence rather than disconnected clips.

The video generator with a description and settings. Describe the video, then set product, purpose, format, length and colour.

Let AI build the scenes

AI drafts the scenes with on-screen text and an AI voiceover that matches the script, so you start with something that already plays end to end.

The video builder with scenes, preview and voiceover. A finished first cut — scenes on the timeline, an AI voiceover, and every line editable.

Refine the script and style

Edit the narration script, adjust the on-screen wording, and shape the visual style so it fits your brand. Keep tightening until the pacing feels right.

Export your video

When it’s ready, render a finished video file you can post to social or send directly. You go from a sentence to a shareable clip without opening a separate editor.

Ready to try it yourself?

Start free. Describe what you need and let AI do the first draft.

Get started