Get a promo video
of your real product.

Paste your URL. We film your real pages, write the story and edit it with voice-over, music and sound, in about 20 minutes.

Your first video is free, no card needed.

Featured on Launch Llama

The problem

You built the product. Now what?

“The demo video is honestly the most painful part. Way harder than building the actual product.”
— a founder on r/vibecoding
“10 prompts in and it was not getting better… spent my entire weekend.”
— a founder on X, making one with AI
“Almost 2 weeks, and the cut still wasn't what we wanted 2 days before the launch.”
— a founder on X, about their agency

The solution

A promo video from what you already have.

Your site, your screens, your copy. That's the hard part, and it's done. Now add your URL to Demo Editor to make your promo video. Here's an example for Autumn, a billing platform for AI startups.

From landing page:
useautumn.com
Autumn's landing page in a browser: usage-based billing for B2B companies
The same landing page on a phone
To promo video:

Testimonials

What founders say about us.

Why it works

It studies your product first.

You give it a URL or a description

The Director studies your site carefully: what the product does, who it's for and what makes it different. Then it works out the story and format that suit your product best, and makes that video.

Behind a login? Show it once.

Add one rough screen recording and the Director cuts the stumbles. Screenshots, a video whose style you like or your repo help too.

Ready to post the first time!

Most AI video tools never watch what they make. The Director watches every video before you do and fixes what's off, so you get:

  • Every word readable
  • Text clear of app buttons
  • Your product easy to see
  • No blank or frozen moments
  • Even sound, no distortion
  • A voice-over that flows
  • The length you asked for

No re-editing

One video. Ready for every feed.

416:91:19:16

Posting the same video to TikTok, X and your site usually means editing it three times: a new crop, text moved out from under the buttons, something cut off anyway. Tick where you'll post it and each version comes back ready. Not cropped with black bars, but laid out again for its shape. Preview it under the TikTok and Reels buttons before you post.

more on formats, voice and teams →
9:16
Laid out again for the phone when you made it landscape or square, with the text kept clear of the app's buttons and caption. TikTok, Reels, Shorts
1:1 and 4:5
Cut from the middle when it fits, laid out again when it doesn't. X, LinkedIn, Threads, Reddit
16:9
Laid out again for a wide screen when you made it portrait or square. your site

The alternatives

Why not just ask Claude ?

Generating a video is easy now. Directing one is the hard part: what to show, in what order, cut from which seconds of your footage, in your brand instead of the default AI look.

  1. a. Make it myself with Claude + Remotion

    a weekend and your usage limits, and it comes out in the default AI look: gradients, centred text, everything fades in.

  2. b. Hire a freelancer or an agency

    $1,500 to $15,000, 1 to 3 weeks, and every change is another round of email.

  3. Demo Editor

    From $49, about 20 minutes to make per video, cut from your real screens, in your brand. Change it by asking.

The Price

Pay once. No subscription.

Buy a pack of videos, use them before it runs out. Launch prices for now: the struck-through number is what it costs after.

Launch package

$79$49

for one launch: a teaser, a hook, a pitch, and a demo

  • Videos4
  • Edits per video2
  • Valid for30 days
  • Max. videos processing at once2
  • Custom voices—

Max package

$99$79

for a launch and the feature drops after it

  • Videos7
  • Edits per video3
  • Valid for6 months
  • Max. videos processing at once4
  • Custom voices1

Ultra package

$199$169

for a year of launches, drops, and updates

  • Videos16
  • Edits per video4
  • Valid for12 months
  • Max. videos processing at once6
  • Custom voices2

Every package includes

  • any of the four cuts
  • storyboard you can correct first
  • voice-over, music, sound effects
  • a file for every feed you post to
  • no watermark, yours to use
  • unlimited projects
  • unlimited project memory
  • GitHub integration

An edit is a change the Director makes, from a message or a button, and each one is a new version: with 2 edits, a video goes up to v3. Questions are free, and so are changes it turns down or that fail.

Agency, team or school?

Contact us for a custom package at support@demoeditor.com.

Want it done for you?

Make us your Launch Partner: 5 videos over 1 month, $500 one time, 3 spots at a time. How it works →

Frequently asked

Questions founders ask.

How do I make a product demo video?

Paste your landing page URL and pick a teaser, hook, pitch or demo. For a demo of the app itself, also record yourself doing one real task in your product, start to finish. The Director cuts it into a finished video with voice-over and music. You check the storyboard first and ask for changes in plain words.

How long should a demo video be?

As short as the job allows. A teaser works in 15 to 30 seconds, a hook in 20 to 40, a pitch in 30 to 45, a demo in about a minute. Most people stop watching a launch demo after a minute, so every cut stays inside those limits.

Do I need to know video editing?

No. There's no timeline to learn. Paste your URL, read the storyboard, and tell the Director what to change, the way you'd brief a person.

Can it use my real product, not stock footage?

That's the point. It reads your site, uses your screenshots and cuts your screen recordings, including screens behind your login. It never invents features or results your product doesn't have.

Which languages can the voice-over speak?

Over 80, from English, Spanish and Japanese to Hindi, Arabic and Bahasa Indonesia.

Who owns the video?

You do. Use it on your site, in your launch and in ads, with no watermark.

5PROD. your launchSCENE 1TAKE 1
Play examples:

Your first video is on us.

No card needed. Paste your URL to start.

Learn the craft

See the cuts. Learn the words.

Examples

Videos the Director cut from real sites and screen recordings: teasers, hooks, pitches and demos.

see the examples →