Why product demos need care
There is no background watcher that updates finished videos. Pull the release you want to explain, choose the changed workflow, and make a fresh project or revise the existing one. Review the script, scenes and preview to catch UI or wording differences before export.
How DemoVexa makes a video
Connect a product workspace with its code, website or documents. Start a project with a one-line idea and review the generated brief. Edit the script and on-screen captions, choose an AI voice, your own recording or captions with music, then review the planned scenes.
Approve the scene plan to build an animated preview. Check the screens, labels and timing, ask for changes if needed, then render the formats and languages available on your plan. Export and publish the files yourself.
- The product UI is recreated from the workspace context; it is not a captured customer session.
- DemoVexa does not automatically refresh an existing video when code changes.
- Review product claims, sample data, captions and the final preview before sharing.
What to provide
For a changed billing flow, for example, pull the branch or release with the new screens, provide the relevant guide, and build a short walkthrough using sample account data.
Add a local code folder or a reachable website, relevant how-to guides or product documents, and a clear idea of the viewer and task. Select the platform and length in the project brief. If you use a repository, clone it locally and pull the version you want to show first.
What you can export
Export an MP4 in Landscape 16:9, Reel 9:16 or Square 1:1, depending on your plan. A project can also provide on-screen captions, timed SRT or WebVTT subtitles, cover images and draft post copy. Each format and language is rendered separately.
Example workflow
For a changed billing flow, for example, pull the branch or release with the new screens, provide the relevant guide, and build a short walkthrough using sample account data.
Treat this as a sample scenario, not a customer case study or a published DemoVexa video. Use synthetic data and verify the behavior against your own product before release.
Plan your next step
Choose the video type that fits the story, check which formats and languages your plan includes, and leave time to review the finished preview before publishing.
Frequently asked questions
Does DemoVexa automatically update a video after a UI change?
No. DemoVexa does not watch repositories or refresh videos on release. You choose the current local code, start a build and review its output.
What should I update after a release?
Pull the intended code changes, check the workspace docs and brand, describe the changed workflow, then review the brief, script, voiceover, scene plan and preview.
Do I need to share my source code?
The code folder is read locally and is not uploaded by DemoVexa. AI providers are separate services, so consider their terms and the prompts or context sent to them.
Make your next product video with DemoVexa
Download the app to make a video from your code, or start a free trial with 15 renders.