Your story, understood from the inside
A developmental edit that models your narrative and protects your voice. One-time fee.
Deep Story Understanding
We build a model of your story the way you hold it: from the inside out. Character, theme, pacing, and structure in one coherent read.
This is a developmental edit. We do not write for you. We surface the most important story-level work, the way a developmental editor would, so you can revise with clarity.
The goal is to highlight your voice, not flatten it.
Built by writers and editors with computational narrative tools, and guided by a hand-curated library of editorial craft wisdom tuned to your voice and genre expectations.
- Native support across many genres. See genres we understand.
- Founded by a writer and former Microsoft researcher. Read the founding story.
- Grounded with literary partners on current storytelling craft. Interview with John McManus.
Write with an editor beside you.
The Manuscript Editor puts deep story understanding into your draft: chapter reviews, beta readers, and craft notes grounded in your whole novel. Coaching asks the hard questions when a scene stalls. A revision checklist keeps every note on track. We never write for you.
Finish a chapter and get clear feedback on what is landing and what still needs work. We already know where you are in the story, where you are headed, who is who, and what each beat means.
A full developmental edit.
When the draft is ready, get a whole-book read that maps structure, character, pacing, and craft. The reports authors trust, grounded in deep story understanding of your novel.
The synthesis report. It collates the underlying craft analyses, builds a roadmap, and delivers the most impactful feedback for your goals, genre, and audience. The compilation work authors often pay thousands for a human developmental editor to do.
Marketing.
Start with a deep read of today's market for your genre, audience, and comps. Then generate draft pitch materials from your manuscript and edit them until they are yours.
An in-depth view of the current market: trends, comps, audience expectations, and where your manuscript fits. Included with First Edition and Masterpiece, and it informs how your pitch materials take shape.
What writers say about Story Stream
I was blown away. I have spent thousands of dollars on editors that gave me nowhere near the detailed feedback.
Jessica James
Shades of Gray Trilogy, Historical Fiction
I was stunned by the depth of the report. It will hugely improve the quality of my novel.
Bernadette Danaher
A Cottage Called Tranquility, Contemporary Romance
The pacing tool was pretty spot on. It shows you which parts of your story might be moving too slowly or too quickly, and gives ideas on how to fix them.
Sadie Bosque
Gone with the Rake, Historical Romance
I was genuinely impressed by the depth and quality of the feedback I received.
Kerri Stoner
Convent Inception, Historical Fantasy
Not only does Story Stream find the weak spots (info dumps, lagging dialogue, etc.) it gives the author ideas for how to fix them.
Jessica James
Shades of Gray Trilogy, Historical Fiction
I'd highly recommend this software to any writer serious about improving their work.
David Boevers
Where the Morning Star Fell, Dystopian Sci-Fi
What's in each plan
First Edition is the holistic revision read. Masterpiece is the final developmental pass before you publish. Both cost far less than a human developmental edit, and both are built with the same story-graph technology and editorial craft library.
- A fraction of a human developmental edit, with manuscript-specific depth writers compare to editors they paid thousands for.
- Built with writers and editors, not generic chat prompts. Story graphs plus a curated craft library shape every report.
- Cutting-edge narrative tech: computational story models that map character, theme, and pacing as a whole, then speak in revision language.
First Edition
For your next big revision
$99
one-time · up to 400,000 words
A holistic developmental read of your novel: plot, structure, pacing, protagonist, theme, and market fit in one coherent map. Buy this when the draft still needs story-level work, not line polish.
Open Editor on Book Home- See the whole book before you revise chapter by chapter.
- Named craft reports you can act on, not a vague pass/fail score.
- One-time fee. Same word limit as Masterpiece.
- 10 developmental reports included
Reports you receive
Story foundation
Author Intentions Assessment
Examines how effectively your manuscript delivers on your stated goals and vision, providing specific insights on where your intentions shine through and where they could be enhanced for maximum impact.
Theme Analysis
Examines the underlying themes of the story, assessing their depth, consistency, and how effectively they are developed and explored throughout the narrative.
Full Editorial Summary
A manuscript-wide developmental assessment that brings pacing, character, structure, theme, emotion, and market fit into one clear revision roadmap.
Structural Analysis
Structural Cohesion Analysis evaluates the manuscript's narrative organization, assessing the balance and progression of plot elements, character arcs, pacing, and subplots to ensure a cohesive and impactful story structure.
Plot Coherence
Analyze the logical flow, resolution of conflicts, and integration of subplots to ensure your story's plot is cohesive, consistent, and satisfying for readers.
Pacing Analysis
Assesses the pacing and rhythm of the narrative, identifying areas where the pace feels too slow, too fast, or inconsistent, and how this affects the reader's engagement.
Character and market
Protagonist Analysis
Provides an in-depth analysis of the protagonist(s), examining their role, motivations, strengths, weaknesses, and how effectively they drive the narrative.
Tropes and Cliches
Surfaces the tropes shaping your story and flags overused clichés so you can keep what works and refresh what does not.
Market Analysis
Answers whether your book can find its audience with current, genre-specific market context that stays aligned with publishing trends.
Sequel Potential
Evaluates whether your manuscript has strong potential for a sequel or series based on your story's world, characters, and unresolved plot threads.
Masterpiece
For the final edit before you publish
$199
one-time · up to 400,000 words
Everything in First Edition, plus the deep craft layers publish-ready manuscripts need: antagonist, dialogue, emotional impact, chapter notes, voice, world, query letter, and sensitivity. Buy this when the bones are solid and you want the last serious developmental pass.
Includes every First Edition report
Open Editor on Book Home- Publish-depth coverage without booking a full human edit package.
- Chapter-by-chapter and character-bundle insight for the last hard pass.
- One-time fee. Same word limit. No subscription.
- 19 developmental reports included
What Masterpiece adds
Plus every First Edition report listed above.
Characters and voice
Antagonist Analysis
Provides an in-depth analysis of the antagonist, examining their role, motivations, strengths, weaknesses, and how effectively they drive the narrative.
Dialogue Analysis
Evaluates the effectiveness and authenticity of the dialogue, assessing character voice, pacing, and how effectively it conveys information and drives the narrative forward.
Emotional Impact
Evaluates the manuscript's emotional depth, pivotal moments, and character-reader connections, providing actionable feedback to enhance emotional resonance and reader engagement.
Cultural / Sensitivity Analysis
Performs an in-depth cultural sensitivity analysis of the manuscript, evaluating representation for authenticity, nuance, and potential harm. It scrutinizes cultural context, language, power dynamics, historical accuracy, and societal norms to identify stereotypes, biases, 'othering,' and unexamined defaults, providing feedback to foster respectful and resonant portrayals.
World and publishing
World Building
This analysis evaluates the depth, consistency, and impact of your manuscript's world-building and setting, providing detailed feedback on how effectively the environment supports the story, atmosphere, and immersion.
Chapter Analysis
Evaluates the structure, pacing, and effectiveness of each chapter's contribution to the overall narrative.
Genre Analysis
Provides a detailed breakdown of the manuscript's genre elements, assessing how effectively they align with genre conventions and reader expectations, while identifying areas for enhancement.
Language & Style
Analyzes the use of language and style in the manuscript, focusing on vocabulary, sentence structure, tone, and overall readability.
Query Letter
Generates several versions of a query letter for a book based on the content and themes of the manuscript.
How to get an editorial report
Open your book on Book Home, then choose the Editor tile. That opens the plan picker for First Edition or Masterpiece.