100% Offline • Mac & Windows
The Professional Writing
Studio for Novelists.
Grammarly catches commas. AI tries to write the book for you. IronProse actually helps you edit. Analyze a 100,000-word manuscript in seconds using 103+ MFA-level craft lenses—mapping pacing, POV, and plot holes in real-time. Runs entirely locally on your machine. No cloud, no subscriptions, zero AI scraping.
Instantly imports: Scrivener (.scriv) • Microsoft Word (.docx) • Markdown folders
Prose DNA
See the invisible physics of your story.
Our real-time Narrative Heatmap gutter maps your Point of View, Tense, and Pacing line-by-line. Spot a dragging scene before you even read it. No AI hallucination—every diagnostic is computed deterministically from the AST.
Explore all 103+ lenses
Craft Lenses
103+ Deterministic Craft Analyzers.
Every lens is deterministic—no AI guessing, no hallucinations. Toggle them on and off so you never get overwhelmed.
Emotional Residue
Flags when major events lack emotional aftermath in subsequent scenes. Your character watched someone die\u2014and then casually orders coffee?
White Room Syndrome
Detects scenes with zero spatial or sensory context. If your reader can't see, hear, or smell the room, neither can your character.
“About what?” He paused.
“I can't do this anymore.” 0 sensory details
Voice Fingerprinting
Mathematically proves if all your characters sound the exact same. Compares sentence length distribution, diction complexity, and cadence patterns across every speaker in your manuscript.
Sentence length & diction variance per speaker
Grammar & Mechanics
Word Choice & Economy
Craft & Style
Sentence & Rhythm
Readability & Structure
Dialogue
Story Structure
Emotional Arc
Visualization & Metrics
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Be among the first.
We're opening IronProse to a small group of writers for private beta testing. Early testers get founding member pricing when we launch.