Bibliotheca Catholica
Church Documents
Catechisms, ecumenical councils, papal encyclicals, canon law, and doctrinal documents, straight from the source.
- Catechism of the Catholic Church (Vatican) — The 1992/1997 Catechism of the Catholic Church in English.
- Catechism of the Catholic Church (USCCB, searchable) — Searchable online CCC from the U.S. bishops.
- Compendium of the Catechism — Question-and-answer summary of the CCC (2005).
- YOUCAT — Youth Catechism of the Catholic Church.
- Roman Catechism (Catechism of the Council of Trent) — The 1566 catechism for parish priests (Internet Archive scans).
- Baltimore Catechism (Project Gutenberg) — Baltimore Catechism No. 1, the classic American catechism (1885).
- Catechism of St. Pius X — Pius X's 1908 catechism in English translation (EWTN).
- Second Vatican Council documents — All 16 documents of Vatican II.
- All ecumenical councils (Papal Encyclicals Online) — Decrees of the 21 ecumenical councils from Nicaea to Vatican II.
- Council of Trent — canons and decrees — Canons and decrees of Trent (1545–1563).
- First Vatican Council — Dei Filius and Pastor Aeternus (1869–1870).
- Vatican.va — Holy See homepage — Official site of the Holy See: every modern pope's encyclicals, homilies, letters.
- Pope Leo XIV documents — Documents of the reigning pope (elected 2025).
- Pope Francis documents — Encyclicals, exhortations, and homilies of Pope Francis (2013–2025).
- Pope Benedict XVI documents — Documents of Benedict XVI (2005–2013).
- Pope St. John Paul II documents — Documents of John Paul II (1978–2005).
- Papal Encyclicals Online — Encyclicals and bulls from early popes to the present.
- Acta Apostolicae Sedis (AAS) archive — Official gazette of the Holy See, PDF archive from 1909.
- Dicastery for the Doctrine of the Faith — Doctrinal documents of the DDF (formerly CDF).
- Denzinger — Enchiridion Symbolorum (Internet Archive) — The standard handbook of creeds, definitions, and declarations.
- Denzinger — The Sources of Catholic Dogma (isidore.co) — Denzinger editions held in the St. Isidore e-book library.
- Compendium of the Social Doctrine of the Church — Systematic presentation of Catholic social teaching (2004).
- Code of Canon Law (1983) — The law of the Latin Church.
- Code of Canons of the Eastern Churches (1990) — The law of the Eastern Catholic Churches (Latin).
- 1917 Code of Canon Law (Internet Archive) — The Pio-Benedictine Code (scans).