Step Into the Babel Nexus Public Domain Library — 814 Unique Works, 53 Galleries, Free
A visual library where you explore classic books and ideas by clicking through connected rooms.
Babel Nexus is a visual library and experimental book platform. Its core Public Domain Library organizes classic primary works into connected hexagonal galleries. Additional collections explore modern editions and the changing technology of books, including book-discovery applications, digital-library software, experimental readers, open publishing tools, spatial books and immersive AR/VR/XR reading experiences.
Beyond the public-domain library, Babel Nexus explores the future of the book through a curated bookstore and a growing Book Applications collection covering discovery, digital libraries, experimental reading, open publishing technology, spatial books and AR/VR/XR reading.
Book Applications extends the Babel Nexus mission beyond preserving and organizing books of the past. It documents emerging ways of discovering, creating, reading and experiencing books. The collection is curated rather than automatically aggregated, with particular attention to unusual, experimental, open and spatial approaches to the book.
The collection includes free book apps and open technologies, alongside freemium tools, experimental projects, waitlists and unavailable or historical projects. Access, compatible hardware and availability are recorded per entry; inclusion does not mean every project is free or currently usable. This is a discovery directory, not a marketplace.
36 applications and projects across 6 application galleries (39 category placements), separate from Public Domain Library and bookstore totals.
Book Applications collection · Open the existing visual collection
Readers and publishing experiments for augmented reality, virtual reality, and spatial computing. Device and access requirements vary.
Explore AR / XR / VR Books & Readers visually
An augmented-reality application for exploring digitized cultural materials. Booksnake uses IIIF resources to allow digitized collection items to be experienced as virtual objects within physical space.
Creator: Sean Fraga and collaborators · Organization: USC–Mellon Humanities in a Digital World and Ahmanson Lab in USC Libraries
Access: free · Platform: iOS, iPadOS · Status: current
Catalog tags: LIBRARY APP, PRIMARY SOURCES, AR, IIIF, SPATIAL
Hardware: AR-capable iPhone or iPad · Software: iOS / iPadOS 17 or higher
Last verified: 2026-09-25. Official site says the app is free for iPhone and iPad (iOS 17+), uses IIIF, and is led by Sean Fraga with collaborators; collection items include books, manuscripts, newspapers and maps.
Official project: BooksnakeAn EPUB, PDF, and comics reader with adjustable reading surfaces, ambient sound, and a spatial Mini Book experiment on Apple Vision Pro.
Creator: unknown · Organization: unknown
Access: freemium · Platform: visionOS, iOS, iPadOS · Status: current
Catalog tags: SPATIAL READER, EPUB, PDF, ACCESSIBILITY
Hardware: Apple Vision Pro for spatial features; iPhone or iPad for mobile reading · Software: unknown
Last verified: 2026-09-27. Official page links the App Store and identifies Mini Book Mode as an experimental Pro feature. Side-rail controls use focus plus pinch or Dwell Control, not eye-only page turning. Exact OS requirements and regional pricing were not verified.
Official project: FolioSpace ReaderA mixed-reality comics experience where publications become objects that readers can hold, resize, and share in their physical surroundings.
Creator: unknown · Organization: Readality
Access: unknown · Platform: Meta Quest · Status: current
Catalog tags: SPATIAL BOOK, COMICS, MIXED REALITY
Hardware: Compatible Meta Quest headset · Software: unknown
Last verified: 2026-09-27. Official site describes spatial comics, lists launch titles, and links a Meta destination. Pricing, title entitlements, exact supported headset models, and actual multiplayer operation were not independently verified.
Official project: ReadalityAn XR reader for importing books, comics, and manga as digital objects that can be held, manipulated, and read in VR or with passthrough.
Creator: Chronicbite · Organization: unknown
Access: unknown · Platform: Meta Quest · Status: current
Catalog tags: XR READER, PDF, COMICS
Hardware: Compatible Meta Quest headset · Software: unknown
Last verified: 2026-09-27. Official developer page links the Quest store and lists PDF, CBZ, and ZIP support plus up to three simultaneous books. It does not establish current price or support for EPUB; neither is assumed.
Official project: LivroPersonalized printed storybooks with augmented-reality scenes, accompanied by a browser-based demonstration of the AR experience.
Creator: unknown · Organization: ARXprints
Access: free_demo · Platform: mobile web · Status: current
Catalog tags: AR, PHYSICAL BOOKS, STORYTELLING
Hardware: Camera-equipped phone plus a second screen displaying trigger pages for the online demo; printed storybook for the full product · Software: unknown
Last verified: 2026-09-27. Official page advertises a free AR demo; full personalized books are commercial products. Some embedded shop components were blocked during source extraction, so live AR behavior and device compatibility were not verified.
Official project: ARXprintsA companion app linking printed educational books to augmented and virtual reality experiences for young readers through participating libraries and schools.
Creator: Library Ideas, LLC · Organization: Library Ideas, LLC
Access: free · Platform: iOS, iPadOS · Status: current
Catalog tags: AR, VR, PHYSICAL BOOKS, EDUCATION
Hardware: Compatible iPhone or iPad; companion book; phone goggles for the described VR mode · Software: iOS / iPadOS 13 or later per checked listing
Last verified: 2026-09-27. Developer-controlled App Store listing identifies Library Ideas and describes books supplied through participating libraries and schools. Free refers to the app download, not books or goggles. Availability varies by region; no device test was performed.
Official project: IR BooksBabel Nexus is an independent curated resource. Projects listed here are included for discovery and research; inclusion does not imply affiliation, sponsorship, or endorsement.