Built to make you extraordinarily productive, Lastslate is the screenplay editor with a collaborator that reads — you keep the pen.

Open any .fdx or .fountain file. A collaborator reads with you in the right pane. You write. It observes — never drafts.

macOS 12+ · Apple Silicon & Intel · Universal binary
Tuesday.fountain — Lastslate

EXT. ROOFTOP — NIGHT

Wind. The city below, indifferent. MARA, 30s, holds a folded page she has not yet read aloud.

MARA

I keep waiting for someone to ask the right question.

She unfolds the page. The wind catches the corner.

DANIEL (O.S.)

So ask it yourself.

CUT TO:

INT. THE WRITERS' ROOM - DAY

A collaborator who reads, never writes.

Ask anything about your script. Get observations, character arcs, beat maps. The collaborator plays the room — Showrunner, Script Editor, Director, Save-the-Cat — and switches with one click. It will not draft a single line of dialogue. That part is still yours.

Learn about the collaborator
Script Editor
Scene 4 turns on a piece of information the audience doesn't have yet. Want to seed it earlier?
You
Where would you plant it?
Script Editor
Page 6 — when Mara checks her phone. One line of action, no dialogue.
EXT. THE PAGE

Industry-perfect pagination

Courier Prime, 12pt, US Letter, 54 lines a page. Page counts match Final Draft to the line — so when an agent asks "how long is it?" your answer is the right one.

INT. THE DRAFTS

Drafts that never overwrite each other

Spin a draft called "Studio notes pass" without touching the main one. Switch with one click. Restore any earlier version on demand. Local-first, syncs when you want.

EXT. THE SPRINT

Sprint mode with a real clock

25 minutes. A ring counts down on the status bar. Words written, streak earned. Tweet your sprint if you must. Stop when the clock stops.

EXT. EVERY SCRIPT THAT EVER SHIPPED

Looks like the format readers expect.

One page is one minute of screen time. That rule has not changed since 1948 and a reader's eye knows when something is off. Lastslate locks the margins, the font, the natural advance — so your script reads like a script the moment it lands in someone's inbox.

See the formatting rules

INT. KITCHEN — MORNING

Sunlight, thin and gray. MARA pours coffee for one. A second mug sits clean on the rack.

MARA

(to no one) Tuesday again.

She lifts the second mug. Considers. Puts it back.

CUT TO:

FADE IN:

Every format. Every file. No conversion tax.

Open Final Draft, Fountain, plain text, or a PDF you got over email. Lastslate reads it. The title page, the dual dialogue, the scene continuations — all of it.

.fdx

Final Draft

Round-trips with title-page metadata, dual dialogue, and revision colours preserved.

.fountain

Fountain

Plain-text first. Save once and your script reads in any tool that supports the spec.

.pdf

PDF

Drag in a PDF; Lastslate reconstructs scenes, characters, and dialogue you can edit.

FEATURE

Feature scripts

Starter template with industry margins, FADE IN, and a proper title page out of the box.

HALF

Half-hour comedy

Multi-cam or single-cam scaffold, ACT ONE / ACT TWO breaks, COLD OPEN built in.

HOUR

Hour-long drama

Five-act structure, teaser, scene cards aligned to act breaks.

INT. ACCOUNTING - END OF ACT

Three plans. One editor.

Lastslate is local-first. Start free. Add cloud backup when you have a script worth backing up. Add AI when you want a collaborator in the right pane.

Free

$0

Editor, drafts, local history.

  • Open .fdx, .fountain, .pdf, .txt
  • Industry-perfect pagination
  • Find, replace, scenes, drafts
  • Local version history
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macOS 12+ · Apple Silicon & Intel · Universal binary · Notarized