Live — this demo is making itself
Bring your prototype to life.
Paste a URL. Democast's agent explores your app, writes the story, and narrates a polished demo video — in minutes, not afternoons. When your product changes, the demo updates itself.
From URL to demo video in three steps.
1 — Point
Drop in a URL and one sentence: “Show off the billing flow.” That's the whole brief.
2 — Watch
The agent explores your product live — finding the flow, writing the narration, moving the cursor like a human. You see it work, step by step.
3 — Share
A narrated 1080p video and a share page, ready to send. Edit by chatting: “punchier intro, skip the login.” Only the changed seconds re-render.
Your demo never goes stale.
Every demo compiles from a readable script — version it, review it, render it in CI. Hook Democast to your deploys and the video rebuilds itself on every release. A one-word narration change re-renders one second, not the whole video.
- →Rebuilds on every deploy — demos can't go stale
- →Every voice, thirty languages, same script
- →Real browser, real UI, real interactions — no slideware
{
"step_id": 3,
"action": "click",
"target": "#create",
"narration": "One click, and the invoice
is created, numbered, and scheduled.",
"wait_for": { "selector": "#invoice",
"state": "visible" }
}Private beta
Show them what you built.
We're onboarding a handful of teams. Send one URL; get a demo video back.
Request access