Google SRE Book Generator (EPUB/MOBI/PDF).

A node.js book downloader from Archive.org

Distributed Proofreaders is a web application intended to ease the process of converting public domain books into e-texts.

Advanced EPUB optimizer: minifies HTML/CSS/JS, compresses and downscales images, subsets fonts, optimizes SVGs, and repackages EPUBs for smaller, faster, and standards-compliant e-books.

Perl/Tk text editor designed for editing and formatting public domain material for inclusion at Project Gutenberg

Tiny utility for reading ebook file uploads. Useful for building text analysis tools or ebook readers on top of it

Post Processor's Workbench

HTML tests for Project Gutenberg texts

Post Processor's file comparison utility

guiprep is a perl script by the author of Guiguts that is used to prepare OCR text for uploading to DP

consolidated text checks for Project Gutenberg texts

Ebook Maker, scanned images to PDF Document converter (PyQt5)