Writers Toolkit

Free Manuscript Tools

Run instant manuscript checks in your browser for free, or download our separate open-source AI skills to critique and proofread an entire book with your own Codex or Claude Code workspace.

⭐ Flagship Tool

Manuscript Analyzer

Upload your DOCX and get a complete manuscript report in seconds — all 15+ checks run automatically, for free.

Word count, reading time & page estimate Chapter-by-chapter length breakdown Dialogue ratio vs narrative Passive voice & adverb density Repeated words & POV detection Estimated editing cost by type
Analyze My Manuscript →
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15+ instant checks
No account needed

Downloadable Agent Skills

Open-source · Runs in Codex or Claude Code

Full-Book Roast & Proofreading Skills

Two complete-book workflows: Full Manuscript Roast checks plot, pacing, characters and continuity; Full Manuscript Proofreading checks errors and consistency without flattening your voice. Download the ZIP, install in Codex or Claude Code, and work chapter by chapter with saved progress. No account required. These are agent skills, not browser tools; your chosen AI provider processes the text you send it.

Full-book critique guide · Proofreading guide · Installation guide

Explore Free AI Skills →
AI
2 focused skills
3 free ZIP downloads

Manuscript Analysis

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Reading Time Calculator
Paste your text and get word count, silent reading time, audiobook duration, and page estimate.
Free · Instant
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Word Count by Genre
Check if your word count fits the industry standard for your genre — Fantasy, Romance, Thriller, Memoir, and more.
Free · Instant
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Chapter Length Analyzer
Upload your DOCX to see a chapter-by-chapter word count breakdown with a visual chart.
Free · DOCX
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Dialogue Ratio Checker
Find out what percentage of your manuscript is dialogue vs narrative. Compare to commercial fiction benchmarks.
Free · Instant
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POV Detector
Identify your dominant point of view — first person, third limited, or third omniscient — and flag potential POV slips.
Free · Instant
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Scene Length Calculator
Break your manuscript into scenes and measure their average length against pacing benchmarks.
Coming soon

Style & Quality

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Passive Voice Analyzer
Find and count passive voice constructions in your manuscript. See which sentences to rewrite for stronger prose.
Free · Instant
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Adverb Counter
Count adverbs that weaken your prose — really, very, quite, just, actually — and see where they cluster.
Free · Instant
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Repeated Word Finder
Spot overused words that make your prose feel repetitive. See frequency counts and find alternatives.
Free · Instant
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Character Mention Counter
See how often each character is mentioned. Spot underwritten characters and check narrative balance.
Free · Instant
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Cliché Finder
Find clichés and overused phrases — "heart skipped a beat", "little did she know" — grouped by category with context.
Free · Instant
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Readability Checker
Check Flesch-Kincaid reading level, average sentence length, and estimated reader age.
Coming soon
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Sentence Length Analyzer
Visualize your sentence length variation — a key indicator of pacing and readability.
Coming soon

Business & Planning

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Book Budget Calculator
Estimate your full self-publishing budget: editing, cover design, formatting, translation, audiobook, and marketing.
Free · Instant
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Royalty & ROI Calculator
Enter your book price, platform royalty, and publishing costs to find your break-even sales number.
Free · Instant
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Editing Cost Estimator
Get a realistic price range for developmental editing, copy editing, and proofreading based on your word count.
Coming soon

Want a real editor's eye on your manuscript?

Free tools tell you what the numbers say. EditRoast tells you what they mean — and what to do about them.

Get Professional Feedback →

Editorial review + proofreading notes in 24–48 hours. Starting from $9.90.