Design

Turn a diagram into a narrated short video.

A narrow feature with a specific use: explaining a system to people who will not read a diagram.

Download for macOS
v0.1.33 · .dmg · Apple Silicon & Intel
Signed & notarized by Apple · opens without a Gatekeeper warning
sha256 698955a0187bc039f4c74f5d05a9f10fbb27376a45788a0a241d1326b73873c7
Download for Windows instead
$curl -fsSL https://lucidtrain.com/install.sh | sh

What it does

Takes a diagram built act by act, context, containers, data flow, and produces a narrated walkthrough that reveals the system in the same order a person would explain it. The narration is generated from the notes attached to the diagram, so it describes what is actually drawn rather than something written separately.

Why this exists at all

A static diagram assumes the reader will study it. For an audience that will not, a launch announcement, a stakeholder update, an onboarding video, a two-minute narrated walkthrough communicates more. It is a narrow need and the honest framing is that it is a feature of the diagram tool rather than a video product.

Not a general video generator

This animates diagrams. It does not generate footage, avatars or marketing video, and the AI video category, which is enormous and crowded, is not what this is in. If you want a general video generator, this is emphatically the wrong tool.

FAQ

Questions

Is this a general AI video generator?

No. It animates diagrams you have made. For general video generation there are many tools and this is not one of them.

Where does the narration come from?

The notes attached to each component and each act, so the script describes the diagram rather than being written independently of it.

What is it actually useful for?

Explaining a system to people who will not study a diagram: stakeholder updates, onboarding material, a launch post. For engineers who will study the diagram, the diagram is better.

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