Developer links
Calibre-Web
With over 17,700 GitHub stars and continuous development since 2015, Calibre-Web has become the definitive self-hosted digital library solution for book enthusiasts who want beautiful web access to their Calibre collections. The responsive Bootstrap 3 interface delivers instant browsing, searching, and filtering across titles, authors, tags, series, book formats, and languages, with custom shelves for organizing personal reading collections. In-browser reading supports EPUB, PDF, TXT, CBR, CBT, CBZ, and DJVU formats with a configurable EPUB reader featuring multiple themes and page location tracking, while one-click email delivery sends books directly to Kindle, Kobo, and other E-Readers without leaving the interface. Native Kobo sync lets Kobo device owners synchronize their entire Calibre library wirelessly, maintaining reading progress and bookmarks across devices. Metadata management includes editing capabilities with automatic metadata downloading from Google Books, Amazon, and other configurable sources, plus eBook format conversion through Calibre binaries for on-the-fly EPUB, MOBI, AZW3, and PDF conversion. User management provides fine-grained per-user permissions controlling download access, upload rights, editing capabilities, and content visibility based on categories or Custom Column values. Authentication supports local accounts, LDAP directory integration, Google and GitHub OAuth, proxy authentication, and Magic Link login for easy E-Reader access. The OPDS catalog feed enables any compliant E-Reader app to browse and download from the library. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed.
Benefits
- In-Browser eBook Reading
- Read EPUB, PDF, TXT, CBR, CBZ, and DJVU files directly in the browser with a configurable reader featuring multiple themes, page location tracking, and a dedicated return-to-library button.
- Kobo Device Synchronization
- Sync your entire Calibre library wirelessly to Kobo E-Readers with automatic reading progress and bookmark synchronization, Instapaper integration, and Kepub format support.
- Fine-Grained User Permissions
- Control per-user access to downloads, uploads, metadata editing, and content visibility based on categories or Calibre Custom Columns, with LDAP, OAuth, and proxy authentication.
- Automatic Metadata Management
- Download and apply book metadata from Google Books, Amazon, and extensible plugin sources, with built-in eBook format conversion through Calibre binaries for EPUB, MOBI, and PDF.
Features
- OPDS Catalog Feed
- Expose your library as an OPDS feed compatible with KOReader, Moon+ Reader, and other E-Reader applications for browsing and downloading books on any device.
- Advanced Search and Filtering
- Search across titles, authors, tags, series, formats, and languages with combined filters and custom shelf organization for personal reading collections.
- One-Click Email Delivery
- Send eBooks directly to Kindle, Kobo, and other E-Readers via email with a single click, with automatic format conversion when the target device requires it.
- Multi-Format Upload
- Upload new books in EPUB, PDF, MOBI, AZW3, CBR, CBZ, and audio formats including MP3, M4A, and M4B, with automatic metadata extraction and cover image detection.
- Multilingual Interface
- Available in 20+ languages including English, German, French, Spanish, Chinese, Japanese, Korean, and Arabic with community-maintained translation support.