AI screenwriting software
Develop the premise, structure the story and draft properly formatted scenes without losing track of characters or earlier decisions. You can tell in one glance whether a tool knows the format. Look at the page.
INT. MARA'S APARTMENT — NIGHT
The room is dark except for the kitchen. MARA sets out two cups without being asked. One is already chipped; she turns it toward herself.
DANIEL
You knew I was coming?
(she doesn't look up)
MARA
I keep a spare. Sit down before it gets cold.
Concept to scene
One continuous conversation carries the project through every stage. Nothing gets re-explained, because nothing gets forgotten.
The idea, interrogated. What is it about, and who bleeds?
The story in prose, as a document it can draft and revise.
Structure as suggestions, never as a mandatory formula.
Drafted a scene at a time, in correct professional format.
Voice held per character, revisable line by line.
Targeted passes that leave the rest of the page alone.
Format is not formatting
Sluglines, action, character, parenthetical, dialogue, transitions. The structure is semantic, so the layout is not a thing you maintain by hand, and export is built to look like a proper Hollywood page.
While you write
Page-aware authoring on wide screens, readable on narrow ones, with exact pagination authoritative in preview and export.
When you exchange
Professional interchange in, professional interchange out. Your work is never trapped in a proprietary format.
When it's done
Any byline you like, pen name included. StoryProp adds nothing: no watermark, no notice, no branded filename.
Fair questions
StoryProp treats format as structure, not styling. A slugline knows it is a slugline; character cues, parentheticals, dialogue and transitions are semantic elements that drive professional layout automatically, which is why the page looks right while you write and correct on export.
Both, in that order. It develops premise, treatment and beats in conversation, offering structure as suggestions with reasons — never as a mandatory formula. What you approve becomes the plan; what you don't stays an idea.
That is the default behaviour. Point at the scene, say what you want changed, and the pass stays inside it. If the change would contradict something established elsewhere in the screenplay, the agent raises the conflict first.
Character and voice guidance live as project records the agent reads before drafting, and voice-consistency checking is one of its standing capabilities. Ask for a voice pass on any range of scenes and it will tell you where a character drifts.
Yes — and surgically. Select an exchange, say what it needs (sharper, colder, funnier, more subtext) and the pass rewrites those lines while the scene around them holds still.
No. FDX is the primary professional interchange, in and out, with Fountain alongside it. Your screenplay is never trapped in a proprietary format.
Authoring is page-aware on wide screens, and exact pagination is authoritative in preview and export, where the output is built to look like a proper Hollywood page.