Your coding agent shipped it. Now Zyng can demo it.
You just shipped, and now you have to show it. A launch, an investor update, a sales follow-up. You're a builder, not a video editor, so point your coding agent at Zyng. It drives your real app and produces a narrated demo video. No camera, no editing, no re-recording.
- Launch day
- Investor update
- Sales follow-up
- Changelog
- Onboarding
Free first demos, no card. Or connect your agent.
A real product, recorded by an agent, then directed by Zyng. Tap to unmute.
Made with Zyng. Literally.
Every video on this page was made by Zyng. The featured ones were driven end to end by a coding agent on real products, with zero manual recording. No avatars, no stock footage, no actors. Zyng shows your real product and your real data, the same way every time, so the demo is actually your product.
Your real app
It records the product you built, driven live, not a synthetic avatar reading a script.
Your real data
Drop in a spreadsheet and the charts use your actual numbers, down to the currency.
Deterministic
Same input, same video. When the data changes, render it again. Not a one-shot you can't reproduce.
Ship a change, re-render the demo. Because it's deterministic and agent-driven, your demo stays in sync with the product instead of going stale.
Every clip below is a real Zyng output, nothing edited after. Tap any one for sound.
Repo to demo, driven by an agent
An agent drove PathToShip's real anonymous flow: pasted a public GitHub repo, got the 89/100 score, the fixes, and the cost. Zyng turned that run into this narrated film.
Same product, from just the URL
The same PathToShip, made in the web studio from nothing but the URL, in minutes. Two ways to the same result: start from a URL, or connect your agent for real product footage.
A real logged-in SaaS
An agent drove BetaBloom's live product, the feed, the review queue, the board, the request wizard, and Zyng directed the launch film.
A whole trip, from one chat
Zyng drove SearchSpot's real logged-in app: planning a trip by asking, flights tuned to how you fly, stays by star, every plan saved to pick back up.
Any product, from just its URL
We aimed Zyng at a live product site with no login. From the public pages alone, the roadmap, the customers, the product story, it directed a full launch film.
An agent-native product, its own way
Pointed at MewCP from its URL: the agent-infrastructure story, its server directory and blueprints, narrated into a launch film end to end.
Not Synthesia, HeyGen, or Pictory. Those generate talking-head avatars and stock B-roll. Zyng records your real app and your real numbers, deterministically.
How the agent loop works
Your agent already knows the app it built. It authors the steps from your own source, so the selectors are real, not pixel-guessing. You stay out of it.
Point it at your app
Give your agent your running app's URL. It reads your source for the real selectors.
It drives every feature
Your agent clicks through each flow over MCP while Zyng records the screen.
Zyng narrates and renders
Zyng writes the voiceover, stitches the clips and scenes, and returns a finished MP4.
On your credits
Passwords resolve on your machine and never reach the agent. One credit is one second of video.
- Mint a token in the studio. It spends the same credits as the web app.
- Your agent authors the Playwright steps from your code.
- Passwords resolve on your machine, never the agent.
No agent? Do it on the web.
Open the studio, describe what you want or drop in a file, and Zyng builds the narrated video. Same engine, no install. It makes a few kinds of video and narrates them all.
Want one for your product? We'll make it.
Drop your email and we'll set up a custom narrated demo of your product, free, while we calibrate Zyng for launch. All we ask back is honest feedback. A handful of spots.
Pricing, based on what you render
Credits are render-minutes of finished video, at one dollar a minute, whether your agent renders it or you do on the web. Load any amount, there's no subscription and nothing gets charged that you didn't ask for.
Your first demos are on us
- About 8 minutes of rendered video, free
- Agent loop and web studio included
- No card to start
- Output carries a “Made with Zyng” watermark
Pay as you go
- Load $10, $20, $50, or any amount
- No watermark
- No subscription
- Credits don’t expire
If you need this for a team or you want higher volume, contact us. You can also read our refund & cancellation policy.
Frequently asked questions
Make the demo you never recorded.
Paste your app's URL and your agent drives the demo. Your first demos are on us, no card.
No coding agent yet? Connect your agent or open the studio.