guidebook

A fast, HonKit/GitBook-compatible static site generator written in Rust.

Features

• GitBook/HonKit Compatible - Drop-in replacement for GitBook/HonKit projects
• Fast - Built with Rust for maximum performance
• Hot Reload - Live preview server with automatic rebuild on file changes
• Multi-language Support - Build books in multiple languages with LANGS.md
• Mermaid Diagrams - Native support for Mermaid diagram rendering
• Collapsible Chapters - Sidebar with expandable/collapsible chapter navigation
• Page Navigation - Previous/Next page arrows for easy navigation
• SPA Navigation - Smooth page transitions without full page reloads
• Japanese Support - Proper handling of Japanese characters in heading IDs and anchors
• Full-width Space Tolerance - Automatically handles full-width spaces in Markdown headings
• Custom Styles - Load custom CSS from styles/website.css
• Auto-link URLs - Bare URLs are automatically converted to clickable links (except in code blocks)
• Sidebar State Persistence - Sidebar open/close state is saved in localStorage

Installation

From Source

git clone https://github.com/guide-inc-org/guidebook.git
cd guidebook
cargo build --release

The binary will be available at target/release/guidebook.

Usage

# Build a book
guidebook build <source-directory> -o <output-directory>

# Start development server with hot reload
guidebook serve <source-directory> -p <port>

# Examples
guidebook build ./my-book -o ./dist
guidebook serve ./my-book -p 4000

Serve Command (Hot Reload)

The serve command starts a local development server with hot reload:

guidebook serve ./my-book -p 4000

📚 Serving book at http://localhost:4000/
   🔥 Hot reload enabled - changes will auto-refresh
   Press Ctrl+C to stop

Features:

• Watches source files (.md, .json, .css, .js) for changes
• Automatically rebuilds when files are modified
• Browser auto-refreshes after rebuild (1 second polling)
• Previous/Next navigation arrows on each page

Project Structure

guidebook expects a GitBook/HonKit-compatible project structure:

my-book/
├── book.json          # Book configuration
├── README.md          # Book introduction (becomes index.html)
├── SUMMARY.md         # Table of contents
├── LANGS.md           # (Optional) Multi-language configuration
├── chapter1.md
├── chapter2/
│   ├── section1.md
│   └── section2.md
└── assets/
    └── images/

book.json

{
  "title": "My Book",
  "plugins": ["collapsible-chapters"],
  "styles": {
    "website": "styles/website.css"
  }
}

Custom Styles (styles/website.css)

You can customize fonts and styles by creating styles/website.css:

/* Google Fonts for Japanese */
@import url(https://fonts.googleapis.com/css?family=Noto+Sans+JP|Noto+Serif+JP|Roboto+Mono&display=swap&subset=japanese);

/* Apply Noto Sans JP to the book */
.book.font-family-1 {
    font-family: "Noto Sans JP", "メイリオ", sans-serif;
}

/* Custom heading styles */
.markdown-section h2 {
    border-left: 7px solid rgb(16, 122, 126);
    padding-left: 10px;
    background-color: rgb(244, 244, 244);
}

/* Code font */
.markdown-section pre,
.markdown-section code {
    font-family: "Roboto Mono", Consolas, monospace;
}

The CSS file path is configured in book.json under styles.website.

SUMMARY.md

# Summary

* [Introduction](README.md)
* [Chapter 1](chapter1.md)
* [Chapter 2](chapter2/README.md)
  * [Section 1](chapter2/section1.md)
  * [Section 2](chapter2/section2.md)

LANGS.md (Multi-language)

# Languages

* [English](en/)
* [Japanese](jp/)

Supported Features

Development

# Run in development
cargo run -- build <source> -o <output>

# Run dev server with hot reload
cargo run -- serve <source> -p 4000

# Run tests
cargo test

# Build release
cargo build --release

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.