Professional A.I.-Powered
Manuscript Editing Suite

From developmental editing to copy editing, plot analysis to character tracking - StoryGrind provides professional-grade manuscript editing tools that rival other more expensive options. This app is free for hobbyists, writers, authors, and editors - just bring at least one of your own A.I. API keys.

Built with love by a book lover, for book lovers who write.

20+
Editing Tools
100%
Forever Free App
costs are A.I. API key(s) usage
4
Major A.I. Providers
via an API keys
โˆž
Unlimited Projects
local storage solution

Why It's Free Forever

It's not a startup looking for users or a company planning to monetize later.

I'm retired, I love books, and I wanted to help writers access AI editing without the usual tech industry malarkey.

That's it. That's the business model ... as in not one at all.

If you find StoryGrind helpful, let others know.

โ€” From a retired C++ programmer who reads too much

Comprehensive Editing

Everything you need for professional manuscript editing, from A.I.-powered analysis to traditional proofreading tools. While A.I.s struggle with creative writing, they can really excel at editing when given clear and precise prompts.

StoryGrind has no subscriptions and no catch.

It installs and runs locally on your computer with no cloud storage or subscription required.

Your words are never locked into proprietary formats in cloud-based writing applications. Everything in StoryGrind is saved as plain text files (.txt), ensuring your work remains completely portable and accessible. You can walk away from StoryGrind at anytime and not lose anything.

Since all of StoryGrind's tools are plain text-based, your work is portable across any platform or software. All editing software: Word, Pages, Google Docs, Notepad, TextEdit, Vellum-- all can handle plain text files (.txt) in some way.

The only out-of-pocket costs are the usage fees for your A.I. API keys.

๐Ÿค–

A.I.-Powered Analysis

Advanced A.I. tools for deep manuscript analysis

  • โœ“ Narrative Integrity Checker
  • โœ“ Plot Consistency Analysis
  • โœ“ Character Development Analyzer
  • โœ“ Tense Consistency Checker
  • โœ“ Plot Thread Tracker
๐Ÿ“

Professional Editing

A.I.-powered editing tools for manuscript perfection

  • โœ“ Developmental Editing
  • โœ“ Line Editing
  • โœ“ Copy Editing
  • โœ“ Proofreader Punctuation
  • โœ“ Adjective Adverb Optimizer
  • โœ“ Dangling Modifier Checker
  • โœ“ Tokens & Words Counter
โš™๏ธ

Workflow & Analysis

Project management and manuscript analysis tools

  • โœ“ Manuscript to Outline Generator
  • โœ“ Manuscript to Characters Extractor
  • โœ“ Manuscript to World Builder
  • โœ“ Extract Comments from DOCX files not A.I.
  • โœ“ Both Import and Export Tools:
    .docx to .txt and back again not A.I.
  • โœ“ Proofreader Spelling not A.I. and blazingly fast

Choose Your A.I. Provider

You simply connect your own A.I. API key(s) from providers. This gives you full control over costs and ensures your writing stays with you. However, note that A.I. privacy policies vary by provider, so review each provider's terms to ensure they meet your privacy requirements for your manuscript content.
Further, your AI API keys are encrypted locally; no more human readable .env file.

OpenRouter Logo
get API Key

by OpenRouter

Claude Logo
get API Key

by Anthropic

Gemini Logo
get API Key

by Google

OpenAI Logo
get API Key

by OpenAI

๐Ÿ’ก Cost Transparency

You control your A.I. usage and costs directly with the provider of your choice.

StoryGrind is an open source app on Github, available to all, so let's make editing less of a grind. โœจ Polish your prose.

Ready to Transform Your Writing?

Download StoryGrind today and connect your A.I. provider of choice. Professional editing tools without the professional price tag.

๐ŸชŸ

Windows

Windows 10/11
(64-bit)

๐Ÿ“ฅ Go download
๐ŸŽ

macOS

macOS 10.15+
(Apple Silicon M1+ & Intel)

๐Ÿ“ฅ Go download
๐Ÿ“–

Documentation

User guides, tutorials,
and videos

๐Ÿ“š View Docs