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ProWritingAid

AI-powered writing assistant for grammar, style, clarity.

Manuscript Editing and Story Planning with ProWritingAid

ProWritingAid is a AI Writing Assistants that checks grammar, style, and readability while also guiding story planning and manuscript revision. Writers use ProWritingAid to plan, shape, and edit full-length books before submission or publication. ProWritingAid handles sentence-level editing and long-form story critique well, while screenplay-specific formatting still needs dedicated software.

Monthly visitors
1.4M
Sep 2026
1%
2025-10: 2,520,2032025-11: 3,170,8752025-12: 146,5882026-01: 3,462,6842026-02: 3,500,9962026-03: 3,898,6642026-04: 3,266,6762026-05: 1,552,0822026-06: 1,485,0792026-07: 1,428,6162026-08: 1,400,4652026-09: 1,387,154
Peak month Mar · 3.9M
Avg / month 2.3M
Audience — top countries
United States: 54.7%United Kingdom: 9.6%Canada: 5.3%Australia: 2.3%
55% US
  • United States 54.7%
  • United Kingdom 9.6%
  • Canada 5.3%
  • Australia 2.3%
  • Other 28.2%
Traffic estimates powered by SimilarWeb · updated monthly

What ProWritingAid Does

ProWritingAid turns a raw manuscript or document into a revised draft by running it through 25+ writing analysis reports and story-specific critique tools.

Writers paste or upload a document and receive feedback on grammar, repetition, pacing, overused words, and sentence structure. ProWritingAid also covers plagiarism checking and rephrasing, so a single pass addresses both correctness and style. For fiction writers specifically, Story Canvas and Chapter Critique move beyond line edits into plot and character feedback, addressing problems a standard grammar checker does not catch.

ProWritingAid works inside Google Docs, Microsoft Office, and a browser extension, so editing happens in the document a writer already keeps rather than a separate app.

Main Features

Grammar Checker

ProWritingAid scans text for grammar, spelling, and punctuation errors and flags each one inline with a suggested correction. The free plan runs this check on up to 500 words at a time, while Premium and Premium Pro remove that cap entirely, so a full manuscript gets checked in one continuous pass instead of being broken into smaller sections for review.

Writing Analysis Reports

ProWritingAid generates 25+ reports covering readability, sentence length variation, repeated words, clichés, and overused phrases. Each report scores the document and highlights the specific lines responsible, so a writer can target the weakest sections directly instead of rereading an entire manuscript line by line to find the same problems manually.

Story and Manuscript Tools

ProWritingAid’s Story Canvas runs Idea Feedback on a premise before chapter one is written, and Chapter Critique analyzes pacing and structure chapter by chapter. The free plan allows 3 Idea Feedback runs total, while Premium raises that to 30 per month, which matters for anyone drafting and testing multiple outlines before committing to one.

Integrations

ProWritingAid connects through a Chrome extension also available for Firefox and Edge, plus Google Docs, Microsoft Office, and its own Desktop Editor. Edits sync back to the original file across these surfaces, so a writer keeps one master document instead of exporting drafts between separate editing tools.

Use Cases

  1. Writing a Book

    Writers drafting a novel bring an unfinished manuscript and a story idea that needs structure. ProWritingAid applies Story Canvas, Chapter Critique, and its grammar and style reports across the full draft. The writer gets feedback on plot gaps and prose quality in one workflow.

  2. Revising a Long Manuscript for Repetition and Readability

    A solo author revising a 90,000-word draft runs ProWritingAid’s repetition and readability reports to spot overused words and unclear sentences. The tool flags specific lines rather than general impressions, so revision targets the pages that actually need rewriting.

  3. Standardizing Style Across a Document Set

    Writers maintaining consistent terminology across chapters or articles use ProWritingAid’s Custom Dictionary and custom style guide to enforce preferred terms. Rules apply automatically on every scan, which keeps vocabulary consistent without manual cross-checking.

Best For / Not For

ProWritingAid is built for writers working on long-form fiction and nonfiction manuscripts rather than short, one-off pieces of copy.

Novelists drafting a full-length book, editors reviewing client manuscripts for style and structure, and authors preparing a draft for submission all fit the tool’s scope well, since its reports and story tools are built around chapter- and book-length documents.

ProWritingAid limits its free plan to 500 words and restricts report runs, rephrases, and creative-writing features, which makes it impractical for anyone editing full chapters without upgrading to Premium or Premium Pro first.

Pricing

ProWritingAid offers a free plan capped at 500 words, then Premium at $10 per user/month billed annually and Premium Pro at $12 per user/month billed annually.

Plan Price Included
Free Free 3 runs of Idea Feedback, 2 runs per line editing report per day, 10 Rephrases per day, 3 Sparks per day, 3 Creative Nudges per day
Premium $10 / user/month, billed annually Everything in Free, 30 runs of Idea Feedback, Unlimited line editing report runs, Unlimited Rephrases, 1 Chapter Critique per day, 5 Sparks per day, 9 Creative Nudges per day, Advanced style improvements, Custom style guide, 25+ writing analysis reports, Customizable suggestions, Custom Dictionary, Author comparison, Comment & share, Unlimited document storage, Up to 40% off Story Credits
Premium Pro $12 / user/month, billed annually Everything in Premium, 30 Chapter Critiques per day, 50 Sparks per day, 15 Creative Nudges per day, Live workshops with top authors & editors, On-demand expert workshop library, Daily cowriting sprints, Group critique sessions, Writer networking events, Guided writing challenges, Up to 65% off Story Credits

Story Credits for advanced manuscript analysis are purchased separately on top of any plan.

Pricing checked 2026-10-25.

Quick Comparison

Book AI Writer is ProWritingAid’s main alternative for drafting a complete manuscript from an outline. Book AI Writer generates a full draft and cover from a structured story blueprint rather than editing existing text. ProWritingAid instead runs 25+ analysis reports and Chapter Critique on a manuscript a writer has already started. Choose Book AI Writer if there is no draft yet and a blueprint-to-manuscript workflow is needed. Choose ProWritingAid if a draft exists and needs line editing, repetition checks, and structural critique.

Verdict

ProWritingAid runs 25+ writing analysis reports and Story Canvas feedback for novelists at $10 per user/month billed annually on the Premium plan. It fits writers revising full manuscripts rather than teams needing quick, single-sentence corrections. The free plan’s 500-word limit makes paid tiers necessary for serious drafting.

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Frequently Asked Questions

The free plan caps checks at 500 words and restricts report runs, rephrases, and creative-writing features. Writers with longer manuscripts hit the limit immediately. Full access to unlimited reports and rephrases requires Premium or Premium Pro.

ProWritingAid connects to Google Docs, Microsoft Office, a Desktop Editor, and a Chrome extension also built for Firefox and Edge. Edits apply directly inside these tools. No API integration is listed in the available sources.

Yes, ProWritingAid runs Novel November as a community writing event alongside Novel Beginnings and Novel Summer Camp. These programs connect writers to write together during set periods. They sit alongside the core editing and story tools.

The free plan includes 3 Idea Feedback runs, 2 line editing report runs per day, 10 Rephrases per day, and basic grammar checking. Premium, at $10 per user/month billed annually, removes those caps and unlocks 25+ analysis reports.

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