This utility translates EPUB books with DeepL and places translated paragraphs below the original text.
CrowBook
CrowBook converts books written in Markdown into HTML, LaTeX, PDF, and EPUB formats.

About CrowBook
CrowBook is an open source program that converts books written in Markdown into HTML, PDF, and EPUB files. Its stated focus is novels and fiction. The project aims to let authors write without handling formatting or typography, and its default settings are intended to produce readable books with correct typography.
CrowBook can be installed from precompiled binaries or built from source with Cargo, the Rust package manager. PDF output requires a working LaTeX installation, preferably xelatex. Inline HTML inside Markdown is not implemented, and the project states it probably will not be, because the goal is books that can also be generated as PDF.
Key features
- Converts Markdown book files to HTML, PDF, and EPUB output
- Produces EPUB output in version 2 or version 3
- Cleans input text by removing extra spaces and using curly quotes
- Applies French typography rules when the book language is set to French
- Converts links between local Markdown files into links inside the document
- Reads inline YAML metadata for single-file texts run with the --single option
- Default settings are intended to produce readable books with typography handled automatically
- Open source, with the source code published on GitHub
- Precompiled binaries are available for download from the releases page
- PDF output requires a working LaTeX installation, preferably xelatex
- Inline HTML in Markdown input is not implemented
- Automatic French typography rules apply only to French; other languages need a requested rule
CrowBook at a glance
- Category
- Books & Reading › Reading Resources
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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CrowBook FAQ
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