Caption, the decodx character for captionsVoice, the decodx character for narration

Describe the video. decodx makes it.

One line in. A narrated, animated, captioned video out.

Showcase

Videos made with decodx

Click one to play. The cards marked Example show the kinds of input the box takes.

bloomdinner.app
WebsiteExample

Website bloomdinner.app

16:9 · 16 s · picture from the site

Why re-renders are free
PromptExample

“Explain, for engineers, why an unchanged re-render costs nothing”

16:9 · 58 s · educational tone

Q3 all-hands
DeckExample

Deck q3-all-hands.pdf, narrated in a friendly tone

16:9 · 2:10 · deck to video

The decodx characters Scene, Voice and Caption combine into Play, the finished video
How it works

Give decodx the brief. It researches, plans and builds.

Scroll slowly. The stage on the right shows what decodx produces at each step.

  1. 01

    The brief

    One line is the brief. Say what the video must prove, and name your website, a deck or a recording if decodx should work from one.

  2. 02

    Research it reads your site

    decodx reads the page, picks the claim, keeps only facts it can cite, and takes your colours, font and picture.

  3. 03

    Plan five beats

    A storyboard with timings: the claim, the product working once, the features, proof a skeptic can check, and the end card.

  4. 04

    Build timed to the voice

    Every scene is animated in time with the narration, then checked. Captions, chapters and a written guide come with it.

  5. 05

    Edit and share

    Change a line and re-render for free. Share a page that search engines can read, embed it, or download the MP4.

Example
The brief

Make a 20-second launch video for Shipyard, a release tool that blocks risky deploys. Lead with the claim, show it working once, end on shipyard.dev.

Or simply: Make a launch video from shipyard.dev

For AI assistants

Or let your agent make it

Prefer your AI assistant? Copy this line into it and ask for a video.

Download the decodx skill from https://decodx.ai/skill.md and follow it to create and edit videos and docs with decodx. Explain as much of the product as you can with motion scenes: animate the charts, diagrams and flows in time with the narration, and give the video character instead of plain slides.
ClaudeCodexCursorGeminiChatGPT Connect the MCP
What you get

One render, everything your customers need

.mp4

A narrated video

Natural AI voices, your branding, an optional talking-head presenter.

.srt

Captions & chapters

Accurate captions and chapter markers, made from the narration.

.md

A written guide

A step-by-step article built from the exact clips in the video.

$0

Free re-renders

Cached assets are reused, so an update costs seconds, not another export.

For every team that has to explain software

Product marketingDeveloper relationsCustomer educationSales enablementSupportEngineering
Questions

Common questions

What is decodx?

decodx is an AI tool that turns your website or screen recording into a narrated product video, with captions, chapters, a thumbnail and a written guide.

Do I need to record anything?

No. Paste your website and decodx records the screens itself. If you already have a recording, a slide deck or clips, you can use those instead.

How do I change a video after it is made?

Edit the narration or a scene and re-render. Only the part you changed rebuilds, so updates take seconds and re-renders from cache are free.

Which AI assistants work with decodx?

Claude, Codex, Cursor, Gemini and ChatGPT. Copy the decodx skill into your assistant, or connect decodx over MCP.

The four decodx characters: Scene, Voice, Caption and Play

Your next product video is one line away

Free to start, no card. Edit and re-render for free.