SceneFlow
Beta · 2026

A screenwriting
tool with Kleo.

Story Spine. Ambient margin notes. A pre-writing canvas.
For writers who want to think on the page.

Start writing →See how it works

FREE DURING BETA · WORKS IN YOUR BROWSER

1.
KPacing

You wrote the call, then nothing. Page 2 is blank. You stopped right where it gets hard.

The Editor

An editor that
gets out of the way.

Industry-standard format. Tab cycles element types. Enter advances. Pages break where they should. FDX and Fountain in and out. PDF when you're ready to send it somewhere.

TAB

Cycle element types

Scene → Action → Character → Dialogue.

ENTER

Advance to the next

Reads what should come next, suggests the right type.

⌘D

Dual dialogue

Side-by-side overlap. The proper format for it.

⌘F

Find & replace

Across scenes. Across drafts. Across versions.

⌘M

Margin script note

Park a thought without disrupting the flow.

⌘E

Export to PDF / FDX

Production-ready. Industry-standard.

Kleo

She doesn't flatter.
She tells you what's not working.

Two voices — Buddy or Mentor. A grain slider for plain-spoken to crafted. Every observation references a specific scene by ID. No generic structural advice. Real questions about your actual pages.

KPacing

You wrote two scenes where Anna gets that call, then nothing. Page 2 is blank. You stopped right where it gets hard.

KRhythm

Maya last spoke around p.14. She's been silent for 22 pages. Still in the story?

KVoice

Liam uses contractions 94% of the time. "It is" is uncharacteristic here. Do you want the tension to land, or does he slip?

Story Spine

See the
shape of your story.

Each scene is a bar. Width is pages. Height is tension. Color is the emotional temperature. Click a bar to jump. The screenplay, made visible.

STORY SPINE · 12 SCENES · 24 PAGEScoolwarmtenseclimax
ACT II
ACT III
The Room

Before the pages,
the pile.

Drop ideas as they come. Move them around. Tag threads. Place them in the script when they're ready. Try another version of any scene side-by-side with the first.

beat

Cold open — Liam at the end, then flash back.

/fragment

The matchbox in the rain — she has it but never told him.

?question

Theme: what you owe the people you left behind.

beat

Scene 5 rewrite: he doesn't run. He walks.

Kleo runs on Claude (Anthropic). Your script is sent to Anthropic when Kleo speaks — they don't use it for training. Everything else stays in your browser. Export anytime.

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The page is yours.

Kleo's just here when you need her.

Start writing →