The writing tool that knows every chapter.

Vellam reads your novel chapter by chapter. It catches character inconsistencies, tracks plot threads, and tells you exactly what doesn't work. Before your editor does.

No subscription · from $9.99 one-time · Your text is yours

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The Problem

Writing a novel is
a lonely sport.

Every writer knows the pain. No one looks over your shoulder. And sometimes that's exactly what you need.

You don't remember what you wrote in chapter 7

At 80,000 words, no one can hold every detail in their head. And then a character's eye color changes.

Beta readers get back to you in weeks — or never

You're left sitting with your manuscript not knowing if it's a good story or just feels that way.

Other tools don't know your book

You ask a chatbot for feedback and get a context-free answer. It doesn't know that Mark died in chapter 5 or what the magic rules are in your world.

You feel something's off — but you don't know what

Writer's block isn't a lack of words. It's a lack of certainty. Vellam tells you specifically what needs attention.

Features

A writing tool
that truly knows
your story.

Vellam Differentiator

Story Bible: Vellam knows your world

Define your characters, rules, locations, and style once. Every analysis uses this knowledge instead of reinventing it.

Vellam Differentiator

Story Atlas: every character, location, and thread chapter by chapter

Vellam builds detailed cards for every story element, separately for each chapter. See how characters evolve, locations gain importance, and threads develop.

Plot Analysis

Plot consistency and open threads

Vellam tracks threads, detects logical gaps, and points out where the narrative loses momentum. Before your editor does.

Characters

Character voice and behavior consistency

Checks whether characters speak and act consistently throughout the manuscript. No more accidental personality changes.

Editor

Built-in editor with contextual analysis. Write and analyze in one place

Import .docx, .txt, or .pdf. Write new chapters directly in Vellam. Every analysis considers the context of the entire book, not just a single excerpt.

Vellam Differentiator

Feedback loop: Vellam learns your decisions

Mark each suggestion: accept / consider / not applicable — with a reason. On the next analysis, Vellam won't repeat rejected suggestions and knows the context of your choice.

Assistant

Built-in assistant

Write and ask questions instantly. No window switching. No context loss.

Editor

Refine your style, bring every scene to life

Select a passage and say what you want changed. Vellam will rewrite it with more sensory detail, expand descriptions, or apply the "show, don't tell" principle.

Big picture

Analyze the entire book at once

No need to go chapter by chapter. Vellam will run through the entire manuscript in one pass and find patterns that aren't visible in a single excerpt.

Unique to Vellam

Static analysis of every sentence

Nine layers of style and readability: clichés, fillers, long sentences, passive voice, weak verbs, adverbs, repetitions, dialogue vs narration, and the fog index. Click a statistic and jump straight to the flagged passage.

Editor

Focus mode: one chapter, one screen

Open a specific chapter and switch on focus. The rest of the book disappears from view, leaving only the passage you're working on.

Coming soon

Research on demand

Writing about time travel, a machine uprising, or Mars colonization? The assistant finds and synthesizes the scientific and historical knowledge you need to write with confidence.

Coming soon

Chapter summaries

Vellam generates a concise synopsis for each chapter. Ready for a query letter, pitch, or your own notes.

Coming soon

Pacing analysis with a chart

A visual chart of narrative tension across the entire book. Instantly see where the story slows down.

Coming soon
Story Atlas

Every character. Every location. Every thread.
Chapter by chapter.

Vellam builds detailed cards for every element of your story, separately for each chapter. See exactly how characters evolve, which locations gain significance, and how threads develop.

  • Character emotions and actions in each chapter
  • Location atmosphere, appearance, and narrative function
  • Thread status: active and closed.
  • Quotes from your text as evidence of the analysis
Try it in practice →
Chapter 1
S
Stanisław Wokulski Main partner of a haberdashery shop
anger
secretive and proud hot-headed
Ignacy Rzecki friendship friend and deputy
📍
J. Mincel & S. Wokulski Shop Renowned haberdashery, Warsaw
Filled with goods and customers, staffed by three clerks.
Heavy traffic, scent of perfumes, atmosphere of industry and success.
Symbol of Wokulski's achievements and commercial stability.
Employee relations Active
Thread marked by a mention of Wokulski's loyalty and trust in Rzecki.
In Wokulski's absence, three clerks work under Rzecki's management.
Story Bible

The tool that remembers what matters.

Define it once and every analysis uses that knowledge. Vellam knows who is who, the rules of your world, and what you as the author want to achieve.

  • Character cards with traits, motivations, and history
  • World rules — magic, technology, society
  • Your style and tone — Vellam won't impose its own voice
  • Authorial intent — because not every "inconsistency" is a mistake
  • Shared knowledge base for the whole series
Build your Bible →
Marek Wiśniewski, protagonist
25 lat sarcastic loyal colloquial style telekinesis
Magic Rules — World of Voru
drains the user max 3×/dzień visible as golden aura
Authorial Intent
narrator is unreliable inconsistency in ch. 7 is intentional
Comments

Notes that stay in the text.

Highlight a passage or a whole chapter and leave a note. Vellam remembers where you left it and brings you back the next time you open the book.

Comment on a passage
Chapter 7 · The Door She Didn't Close

That evening she walked to the old house on Cherry Lane, though she knew no one was waiting there anymore. The house was silent. So was she.

"the old house on Cherry Lane"
JK
You April 14

Ch. 2 calls it "Linden Street". Unify the street name.

Comment on the whole chapter
Chapter 7 The Door She Didn't Close
JK
You April 14

Check the amulet motif. Did it disappear after Ch. 4? Anna mentions it in Ch. 2 and then nothing.

JK
You April 28

Comes back in Ch. 12. Keeping it.

Static analysis

Static analysis of every sentence.

Nine layers of style analysis: clichés, fillers, redundancies, long sentences, passive voice, weak verbs, adverb density, repetitions, and a readability fog index. Click "Analyze" and see concrete spots to revise.

  • 9 layers of style and readability analysis
  • Click a statistic to jump straight to the flagged passage
  • Configurable thresholds tuned to your genre
  • Readability metrics: fog index, lexical diversity, hard-words percentage
  • Hover in the editor shows what was flagged and why
Test your text →
Chapter 3, excerpt

Vel really just wanted to leave already.

The door was closed by someone unseen, whom no one had heard or noticed.

He muttered quietly under his breath.

Fog index
14.2 Demanding
College level. Check if this is intentional.
Romance · Crime · Fantasy

Analysis tailored
to your genre.

Romance, crime, fantasy. Every genre plays by different rules. Vellam checks romantic tension, alibi consistency, magic systems, and everything in between.

Pricing

Simple.
No subscription.

Pay once and use whenever you want: this year, next year, when you finish one volume and start the next. Credits don't expire.

$ 0
forever · no card
Write and organize. No text limits.
  • Built-in text editor
  • Export to .docx
  • Story Bible
  • 5,000 credits to start
Start for free →

Enough for ~2,000 word analysis.

$ 9.99
one-time · 100,000 credits
Enough for ~40,000 word analysis.
  • Plot, character, and location analysis
  • Story Bible
  • Editor — import .docx / .txt / .pdf
  • Contextual chapter analysis
  • Your data never trains models
Start writing →

For shorter novels or to get started.

$99.99 $ 49.99
one-time · 1,000,000 credits · promotion until end of July 2026
Enough for ~400,000 word analysis.
  • Plot, character, and location analysis
  • Story Bible
  • Editor — import .docx / .txt / .pdf
  • Contextual chapter analysis
  • Your data never trains models
Start writing →

For writers working on a whole series. Contact us if you need more.

What
users say

A fascinating tool, recommended to me by a colleague in the industry. It delivers deeply considered feedback with a handy breakdown by chapters and areas of work. I recommend it to the authors I collaborate with as their first beta reader, and to editors as a supporting tool that generates ideas.

I was skeptical about "AI for writers", I expected yet another tool that would tell me my sentences are too long. Vellam actually tracks plot threads. It showed me that the subplot with Detective Nowak disappears after chapter 14 and never comes back. I had it in my head, but I couldn't see it on "paper".

The text analysis made a positive impression on me. You could see exactly what needed improvement and what was missing. Unlike typical AI, the tool picked up on the very things I myself felt needed polishing. I like that it automatically detects characters, analyzes geography and other elements that a person wouldn't normally notice on their own.

Vellam pointed out things none of my beta readers noticed, for example, that one of the characters appears in chapter 8 as if the reader already knows her, but I don't actually introduce her until chapter 11. A minor detail, but exactly those details knock you out of the reading experience. I also got a great thread map that made it clear I was wrapping up three plotlines too quickly.

I self-publish my books, and before Vellam, every editing round was a logistical nightmare: notes in Word, margin comments, an Excel spreadsheet for plotlines, plus sticky notes with a timeline on the wall. Now I have it all in one place, and more importantly, in a format that can actually be used.

I used to wait two, three months for feedback from beta readers, sometimes longer, because everyone has their own life and reading someone else's text isn't always a priority. With Vellam I got specific, actionable feedback in a matter of minutes.

I am writing my debut novel. Every new chapter fills me with joy, but I also have plenty of doubts. I analyze them with Vellam, which has become an important partner in my creative process. Its suggestions take into account character traits (not just appearance, it handles psychological character analysis very well), as well as plot thread development and location descriptions and their significance to the story. I have already incorporated many of Vellam's suggestions for improving scenes. Many I haven't, because they didn't fit my vision, but they made me think. Vellam notices details I no longer pay attention to while writing. It helps maintain logic and consistency, sometimes suggesting to highlight details that could strengthen the message. I like working with Vellam because it gives me the opportunity to quickly test my own vision against reality. I revise the chapter we discuss, but I also approach the next ones with greater care. And I get all the feedback and suggestions immediately, so the creative process flows really smoothly.

FAQ

Questions from
writers

How long do I have to wait for the text analysis?

A few minutes. Seriously. Instead of waiting weeks for feedback from beta readers, you get a detailed editorial report the same day.

What format should my text be in?

You can import a ready-made .txt, .docx, or .pdf file, or create a book from scratch directly in Vellam. You add and edit chapters in the built-in editor.

How do I prepare my file to get analysis for each chapter?

Every new chapter must start with a numbered heading, e.g. "Chapter 1", "Chapter 2". That's it. Vellam does the rest.

Can I edit the text after submitting it for analysis?

Yes — Vellam has a built-in editor where you can edit chapters and save changes at any time.

What is the Story Bible?

It's where you describe your book before starting the analysis. Characters, style, genre, plot assumptions — Vellam uses this data in every analysis so the feedback is precisely tailored to your story, not generic.

Is Vellam a novel writing program?

Vellam is more than an editor. It has a built-in text editor, but its strength is analysis: it knows your manuscript, characters, and world rules from the Story Bible and gives concrete feedback like a beta reader with an elephant's memory.

How is Vellam different from other writing tools?

Most writing tools treat every query from scratch and simply don't know your story, characters, or world rules. Vellam builds a Story Bible: a permanent knowledge base about your book that every analysis draws from. The Story Atlas maps every character, location, and thread chapter by chapter, you add comments on passages and whole chapters, and you invite your editor to collaborate on the same text. It's like talking to someone who's actually read your manuscript instead of seeing it for the first time.

Will Vellam train models on my manuscript?

Never. Your text is not used to train any models. We store data only to provide the service and you can delete it at any time.. See our privacy policy.

How do credits work — do they expire?

Credits have no expiry date. Pay once and use whenever you want — this year, next year, when you finish one volume and start the next. One package (from $9.99) is enough for several full novel analyses.

What language does Vellam work in?

Vellam works in Polish, English, and German — interface, analysis, and support. It's the first dedicated novel-writing tool available in three languages.

Stop guessing.
Start writing with Vellam.

The first tool that knows your story.

Try for free See examples →

$9.99 / $25 / $99.99 one-time · No subscription · Your text is yours