Live: this demo is making itself
Bring your prototype to life.
Turn your Lovable, v0, or hand-built prototype into a narrated demo video in minutes. Paste the link: AI writes the demo script and Democast films it. No screen recording, no retakes, no starting over when your prototype changes.
From prototype to living demo in minutes.
No recording session, no retakes. Democast remembers how to present your product: change the product or the story, render again, and the demo comes back in any voice, any style, any language.
From prototype to video in three steps.
1 — Point
Paste a link and one sentence: “Show off the billing flow.” Works with anything that runs in a browser: Lovable, v0, Bolt, or your own code.
2 — Watch
AI writes the demo script: the steps and the narration. Democast then drives your app with a human-like cursor and films a clean walkthrough while you watch. Read it over, fix a word or two.
3 — Share
A narrated 1080p video and a share page, ready for clients, investors, or your launch post. Want a change? Just say it: “punchier intro, skip the login.”
Ship a change, get a fresh video.
Democast remembers how to demo your product. When you ship, the video rebuilds itself: no re-recording, no stale screenshots in your pitch. And edits are surgical. Reword one narration sentence and only that sentence re-renders. Seconds, not minutes.
- →A current demo video with every release, automatically
- →The same demo in 30 languages, any voice
- →Your real product on screen, not slides or screenshots
- →No timeline, no export settings. Change the words, get a new video.
One demo, every audience.
The words and the voice live in the script; the clicks don't change. So the same demo can be a sales pitch, a plain walkthrough, or a training video. Or all three in Spanish.
transcript
- Nobody recorded this video. Democast is filming it right now: the cursor, the typing, this voice. We gave it one sentence: show how invoicing works.
- An agent opened the app on its own, found the flow, and wrote the script. No screen recorder. No six takes. No founder saying um.
- It drives the app the way a person would, so the demo looks human. The words you are hearing live in that same script.
- Which means when your product ships something new, the video just re-renders. Fresh take, zero humans.
- Change one sentence, and only that sentence re-renders. Want it in Spanish? A different voice? Same clicks, new words.
- Democast. Paste a link, type a sentence, get a demo video that keeps itself current. Yours takes about a minute.
Not just prototypes.
If a browser can open it, Democast can film it. The same trick works for anything you'd otherwise present by hand:
Decks that present themselves
An HTML deck gets a voice and pacing. English for investors, Spanish for the team.
Sprint demos
Point it at staging on Friday. The what's-new video makes itself while the team is still in review.
Explainers and docs
Every how-to page gets a matching video from the same steps. It never goes stale.
Conference talks, minus the risk
The product segment of your talk, rendered flawless in advance. A live demo can fail on stage; a file can't.
Private beta
Show them what you built.
We're onboarding a handful of teams. Send one URL: a prototype, a deck, or a staging build. Get a narrated video back.
Make your first demo