Christian relevance
A work must meaningfully serve Christian study, history, formation, testimony, worship, or faithful imagination.
A library for every seeker
250,000 works.
One living library.
Explore a monumental digital collection of Christian thought, devotion, history, and imagination—preserved for readers everywhere.
250,000+works to discover
20books at a time
30 daysto read each loan
A library without walls
The world’s biggest
Christian digital library.
From foundational theology to quiet devotional classics, ChristBooks brings generations of Christian writing into one beautiful place—searchable, borrowable, and ready to read wherever you are.
A beacon for the age of AI
Protecting the knowledge
that makes us human.
Artificial intelligence will push knowledge into a new age—but it must never suppress human intelligence, spiritual understanding, or the wisdom carried from one generation to the next. ChristBooks stands as a beacon of light, protecting the knowledge of Christ in a library devoted exclusively to Christian works.
With 250,000 works, the collection opens the door to a whole dimension of faith, thought, history, and discovery. It is a beacon of knowledge, light, and wisdom for every person seeking something deeper than information alone.
When you seek happiness, peace, true wealth, or true success, look no further than ChristBooks. Look no further than the Living Codex.Enter the Living Codex
My Shelf
Protecting the Christian corpus
Not every book
belongs on this shelf.
ChristBooks exists to preserve the breadth of Christianity’s written inheritance without surrendering the reader’s trust. We aspire to find every qualified Codex work—and require each admitted edition to earn its place.
Rights and provenance
Source identity, edition evidence, public-domain or authorized-use status, and content lineage are reviewed and preserved.
Whole-book integrity
Completeness, readable structure, metadata, duplication, and technical quality are checked before publication.
A shelf worth trusting
Candidates that fail the standard are quarantined or rejected. Collection size never outranks truth, quality, or the dignity of the reader.
Our promise: we do not admit a title merely to make
the number larger. ChristBooks grows through careful selection,
documented evidence, and review.
Explore the shelves
Find your next book
A curated beginning from a library built for theology, prayer, history, family, and faithful imagination.
Simple, generous borrowing
Your reading life,
with room to wander.
Build a shelf for study, prayer, curiosity, and joy. Your account keeps every loan and reading place together.
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01
Join ChristBooks
Create a free account and open the doors to the collection.
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02
Borrow up to 20 books
Keep twenty titles on your shelf at once for thirty days each.
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03
Read online, anywhere
Open the reader and continue from where you left off on any device.
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Return whenever you’re ready
Return a book early to make room for another discovery.
A first in library history
ChristBooks has its own
operating system.
For the first time, a library has created an operating system: Jesus New OS. It is the mobile experience of knowledge-bearing—an entire operating system built to help people carry, explore, and live with knowledge.
Inside Jesus New OS, Codex is the mobile library experience, and the Living Codex turns the Corpus of Christ into a navigable world: a vast hallway where books become rooms, paths, and places to return to.
- ✦ Explore a spatial library world
- ✦ Enter permanent rooms for books you love
- ✦ Carry your ChristBooks discoveries further
Available now for iPhone and iPad. Visit JesusNew.com to experience the knowledge-bearing OS and explore its wider family of innovative technologies.
PineCone: the knowledge-bearing phone.ChristBooks is creating a phone designed to connect directly with
the Jesus New OS knowledge-bearing experience. PineCone is in
development for a planned December 2026 release.
The ChristBooks story
The impossible
library.
Through extraordinary odds, Christian Cassarly learned to code, searched across the internet for scattered Christian works, and gathered them into the Codex—a dedicated place for Christian literature and thought.
Then he built Jesus New OS around it, so this recovered inheritance would become more than stored data. It would become an unforgettable living library.
Read the ChristBooks storyKeep the books free
Help build a library
worthy of its mission.
If you honor the knowledge of God and believe Christian books should remain available to every reader, help us preserve, verify, prepare, and share them. Your support moves us toward a bold vision: that the world’s largest library can be a Christian library—and that its books can remain free to read.
Choose your own amount. Stripe securely processes cards and eligible digital payment methods; ChristBooks never receives your payment details.Your library card is waiting
A quarter-million works.
Where will you begin?
No payment required. Borrow up to 20 books.