Bibliotheca Catholica

Bibliotheca Catholica (bibliothecacatholica.com) is a free Catholic library of libraries: a selected reading room and a curated resource index. It gathers Catholic authors from the Apostolic Fathers to today, Sacred Scripture, the documents of the Magisterium, prayers and devotions, reference works, podcasts and media, and a reading room of classic texts. Each entry links to its original source, such as vatican.va, New Advent, the Christian Classics Ethereal Library, Project Gutenberg, and the St. Isidore e-book library.

The reading room comes first. Its 58 hosted texts are older editions listed by their sources as public domain in the United States, chosen under our pre-1931 rule and checked against those sources, and readable right here, with contents, search, highlights, notes, and your place saved in your own browser. Every hosted text keeps its source record, its SHA-256 checksum, and its rights evidence. Everything else stays with its publisher, and Bibliotheca Catholica links to it.

Beyond the reading room, the library indexes 476 Catholic authors with short biographies and works online, 185 saints with sourced feast days, edition guides that compare translations, curated reading lists, and the Isidore Index of 6,633 e-books, each with a rights badge. Listing a book is not endorsement; the Fidelity & Editorial Policy explains how context notes work.

Bibliotheca Catholica is independent, free for everyone, and has no ads. Start with a section below, or search everything from the box at the top of any page.