The second mug
She sets it out every morning. Never fills it.
SC 1 · INT. KITCHEN
The screenplay editor for Mac and Windows that opens your Final Draft files as they are. An AI collaborator reads your script from the side panel, gives notes, and keeps track of your story. It never writes your dialogue, and your scripts are never used to train AI.
One app on Mac and Windows, released on the same day.
Type int.
and it knows that's a slugline. Drop a character name in caps, hit return, and the next line
lands in dialogue, right where it should. You're never reaching for the Tab key to tell it
what a line is. It keeps up with you and saves as you go.
Share a draft with a producer, director, or writing partner. They open it in a browser, no account needed, and leave notes right on the lines. You can reply, and every note stays with the draft it was written on. Their notes show up in your editor.
How review links work →INT. KITCHEN — MORNING
Sunlight, thin and gray. MARA pours coffee for one. A second mug sits clean on the rack.
Ask it anything about your script and you get a real read — where the arc sags, who's underwritten, what a scene is actually up to. You can sit it in different chairs while you work: First Reader, Showrunner, Script Editor, Staff Writer. The one thing it won't do is write your dialogue. It gets things wrong sometimes, and when it does it stays out of your way.
What the collaborator won't do →Companion Mode is a small Lastslate window that sits next to Final Draft, Fade In, Highland, or whatever you write in. Open your script in it once and keep writing where you always do. Every time you save, Lastslate reads the new version, so you can ask it anything about the script and it answers with the scene numbers to check. It can't change a word of what you wrote.
See how Companion Mode works →
Lastslate Companion Mode
Watching
Spin off a draft called "the bold version" without touching the main one, hop between them, and pull back an older version whenever you change your mind. Everything stays on your computer, and backs up to the cloud only if you turn that on.
Version history by plan →Beats are index cards for ideas — a scene, a twist, a feeling. Type one straight onto the board, connect it to the beat it pays off, and link it to a real scene in your script. Free on every plan. On Pro you can drop reference images onto a beat.
Start planning free →She sets it out every morning. Never fills it.
'/%3E%3Crect x='168' y='12' width='66' height='78' rx='3' fill='%23d9b87f' opacity='.42'/%3E%3Crect x='198' y='12' width='4' height='78' fill='%23241f1a' opacity='.5'/%3E%3Crect x='168' y='48' width='66' height='4' fill='%23241f1a' opacity='.5'/%3E%3Cellipse cx='205' cy='42' rx='95' ry='62' fill='url(%23w)'/%3E%3Crect y='88' width='260' height='32' fill='%231b1713'/%3E%3Crect y='86' width='260' height='3' fill='%23473a2b'/%3E%3Cpath d='M58 64 h28 v20 a7 7 0 0 1 -7 7 h-14 a7 7 0 0 1 -7 -7 z' fill='%23120e0b'/%3E%3Cpath d='M86 69 h7 a7 7 0 0 1 0 13 h-7' fill='none' stroke='%23120e0b' stroke-width='4'/%3E%3Cpath d='M66 56 q4 -7 0 -14 M78 58 q4 -8 0 -16' fill='none' stroke='%23d8c8a8' stroke-width='1.6' opacity='.45'/%3E%3C/svg%3E)
Cold light, lived-in. The look of the whole film.
She washes the mug. Puts it away.
Up to 10 writers in the same script at once, live — everyone's cursor visible, every keystroke on every screen. Nobody emails a file at midnight, and nobody spends the morning working out whose version is real.
Co-writing is in Pro →
Type /cast
and you get a cast list with line counts, pulled straight from the script. There are more of
these: locations and props for the line producer, a logline or one-sheet for the days someone wants
the pitch. It's reading and sorting what you already wrote, not writing any of it.
Switch from Final Draft and bring your whole library. Every script opens, edits, and saves back with nothing lost. Fountain, plain text, and that PDF you got over email come in clean too.
Open your whole Final Draft library, edit, and save back. Title pages, dual dialogue and revision colours all survive.
Plain text. Save once and it opens in any app that reads Fountain.
Drag in a PDF and Lastslate turns it back into scenes and dialogue you can edit.
Standard margins, FADE IN, and a proper title page, ready when you open it.
Act breaks and a cold open already in place, multi-cam or single-cam.
Five acts, a teaser, and scene cards that line up with the act breaks.
For ReelShort, DramaBox and the like. Each micro-episode comes with a hook, a turn, a spike and a button, so every cliffhanger lands.
Lastslate is the only modern screenplay app that matches Final Draft's pages, formats as you type, and has an AI that reads with you instead of writing for you.
| Capability | Lastslate | Final Draft | WriterDuet | Highland 2 | Sudowrite |
|---|---|---|---|---|---|
| Formats as you type, saves as you go | Yes | Partial | Yes | Yes | — |
| Pages match Final Draft | Yes | Yes | Yes | Yes | — |
| Opens and saves Final Draft files | Yes | Yes | Yes | Partial | No |
| AI that reads your script, never writes it | Yes | No | No | No | Drafts dialogue |
| Works alongside your existing editor | Companion Mode | No | No | No | Paste in and out |
| Mac and Windows, same release | Yes | Yes | Browser | Mac only | Browser |
| Notes from readers by link, no account | Yes | Email .fdx | Real-time only | No | — |
| Beat board linked to scenes | Yes | Single-user | Scene cards | Scene cards | No |
| Your scripts never train AI | Yes | — | — | — | Trains on input |
| Scripts live on your computer | Yes | Yes | Cloud-only | Yes | Cloud-only |
| Free tier | Yes | No | Limited | No | No |
Coming from Final Draft? Open the scripts you already have and pick up where you left off. Your whole library comes with you.
A dash means the product doesn't do that kind of thing. Compared from public info in May 2026. Spot something wrong? Tell us.
Your writing is always yours. We never charge you to open your own file.
Includes:
Billed monthly. Switch anytime.
Everything in Free, plus:
Students in the US and Canada get Pro for $10 USD a month or $100 USD a year with a school email. See student plan →
What writers ask before they download: privacy, the AI collaborator, file formats, pricing, and Final Draft.
A screenplay editor for Mac and Windows. It formats as you type, its pages match Final Draft, and it has an AI collaborator that reads your script and gives notes but never writes dialogue. The editor is free, with PDF and Final Draft export, cloud projects, and a few AI questions a day. Pro adds the strongest AI models, unlimited cloud projects, and review links.
Yes. Pages break where Final Draft breaks them, and your Final Draft files open and save back with the title page, dual dialogue, and revision colours intact. Then Lastslate adds what Final Draft doesn't have: it formats as you type, saves as you go, lists your scenes down the side, keeps named drafts side by side, and has an AI collaborator that reads but never writes.
Those tools write for you, and after a while it shows: on-the-nose dialogue, a character who forgets who they are. Lastslate's AI reads instead. It asks questions, maps your arcs and beats, and never writes a line of dialogue.
The Free plan was built with first-time and student writers in mind. You get the full editor, pages that match Final Draft, formatting as you type, every file format (Final Draft, Fountain, plain text, PDF), named drafts, version history, and saving as you go. No credit card.
Yes, this one. Lastslate never trains AI on your scripts, on the Free plan or on paid plans. Your scripts live on your computer. Cloud backup is off until you turn it on, and when it's on it's encrypted.
Yes. It opens and saves Final Draft files with nothing lost, and breaks pages the same way (Courier Prime 12 point, 54 lines a page), so your page count matches.
Yes, without switching editors. Companion Mode is a small Lastslate window that sits next to whatever you write in. Open your script in it once and keep writing where you always do. Every time you save, Lastslate reads the new version, so you can ask about the current pages and get the scene numbers to check. It can't change a word of what you wrote. Companion Mode is free. The Free plan's daily AI questions work there too, and Pro lifts the cap. More about Companion Mode.
Final Draft (.fdx), Fountain (.fountain), plain text (.txt), and PDF. Drag a PDF screenplay in and Lastslate turns it back into scenes, characters, and dialogue you can edit.
No. The AI collaborator only reads. It can read as a First Reader, Showrunner, Script Editor, or Staff Writer, map your arcs, and ask the right questions. It never writes a line of dialogue.
Yes. Make a review link and send it to a producer, director, or writing partner. They open it in any browser with no account and leave notes right on the lines, and you can reply. Each note stays with the draft it was written on and shows up in your editor.
The editor is free. Free includes as many projects on your computer as you like, 10 cloud projects, PDF and Final Draft export, 30 days of version history, and a few AI questions a day (5/day). Pro is $150 USD a year, which works out to about $12.50 a month, or $15 USD month to month. It includes $15 USD of AI use each month on any model. If you need more, you can pay for what you use, or connect your own Claude, OpenAI, Gemini or local AI. Pro also has unlimited cloud projects, unlimited version history, review links, and turns a logline into an outline. Pro+ is $45 USD a month or $450 USD a year, with three times the AI.
Each month, $15 USD worth of AI. Stronger models use it up faster. It never just stops: when that's spent, Lastslate keeps answering on the everyday model until next month. Want more? Pay for what you use, with a limit you set, or use your own AI account.
Yes, on any paid plan. Connect your Claude, OpenAI, or Gemini account in Settings, or an AI running on your own computer. Your key stays on your computer and never reaches Lastslate. Your AI provider bills you for what you use. The plan price doesn't change.
Yes, always. Your PDFs and Final Draft exports are yours to keep. Lastslate is not a subscription to your writing, and it never charges you to open your own files.
Any Mac on macOS 12 or later, Apple Silicon or Intel. The app is signed and checked by Apple.
Yes, Windows 10 and 11. Same editor, same pages, same AI as the Mac version, and it updates itself. More about Lastslate for Windows.
Yes. Your scripts live on your computer. Cloud backup is off until you turn it on, and when it's on it's encrypted. Nothing you write is used to train AI.
Mac and Windows. Or keep your editor and add Companion Mode.