ytgen video generator

Turn a topic or structured script into a narrated, captioned MP4 and downloadable production files.
ytgen is a focused browser utility for generating a short, multi-scene video from a written topic. Users can choose a scene count between three and twelve or paste an optional JSON script to control scene titles and narration text directly. The service assembles the scenes, uses an offline voice for narration, creates synchronized captions, and returns separate downloads for the finished MP4, SRT caption track, and source script JSON. The tested workflow required no account and reported the generated video's duration and file size when processing finished.
Highlights
Topic-to-video
Creates a narrated MP4
Script control
Accepts scene JSON input
Three outputs
MP4, SRT, and JSON files
No account
Generates without sign-in
How to Use
Describe the video topic
Enter the subject you want the video to explain in the Topic field. A concise but specific topic gives the generator enough context to organize narration across several scenes.
Choose the scene count
Set Scenes to a value from three through twelve. This controls how many sections the generated video will use before the media is assembled.
Optionally provide a custom script
Paste JSON into the Custom script field when you need direct control over scene titles and spoken text. The page states that this structured script overrides the topic-based generation path.
Generate and wait for completion
Select Generate video and keep the page open while processing runs. The interface displays a generating message, disables the button during work, and changes to a completion message when the files are ready.
Download the production files
Use the result links to download video.mp4, captions.srt, and script.json. The same result panel also reports the final duration and approximate video file size.
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