One idea in.
A finished short video out.
BuildShort writes the script, casts the voices, and assembles a vertical 9:16 short drama — then gives you a timeline editor to trim, reorder, and export a ready-to-post file.
Android beta · free to try · no signup required to browse
From sentence to screen,
in four steps
No camera, no crew, no editing software. You supply the idea — BuildShort handles production.
Describe your idea
One sentence is enough — genre, characters, a twist. The story engine expands it into a full scene-by-scene treatment.
AI writes & directs
Script, dialogue, storyboard, character casting and shot prompts — generated end to end, in English.
AI voices & assembles
Character-matched voiceovers, background music, and burned-in subtitles are mixed into a 9:16 vertical cut.
Trim, reorder & export
Open the built-in timeline editor: trim shots, reorder scenes, toggle audio and subtitles, then export a ready-to-post file.
Built for short-video feeds
Every feature targets the one format that matters: vertical, watchable, postable.
AI Scriptwriting
Scripts and storyboards generated from a single idea — with dialogue, scene direction and continuity.
AI Voice Cast
Each character gets a matched voice. Dialogue is timed per shot and burned into subtitles.
Vertical 9:16
Framed for phone screens and short-video feeds — portrait by default, no conversion needed.
Timeline Editor
Trim and reorder shots, toggle per-shot audio and subtitles — all inside the app.
One-Tap Export
MP4 out of the box. Download the video or the full project bundle for your own tools.
Always Your Content
AI-generated and watermarked. Post it anywhere — from your personal feed to your brand account.
Ready to produce your first short?
Download the beta, open the official demo project, and start your own drama from a single sentence.