Calibre-Web
Calibre-Web: A capable free library server for readers comfortable managing self-hosted software. Ranked #15 of 27 in Ebook Reader Software by our editors (7.7/10); pricing: Free plan; best for self-hosted ebook library administrators.
At a glance
- Editor score7.7 / 10
- PricingFree plan
- Best forSelf-hosted ebook library administrators
- Free planYes
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Free and open source under the GPLv3 license
- Browser reading, OPDS access, search, shelves, and metadata tools
- Kobo synchronization, ereader delivery, and user permissions
Where it doesn't
- Self-hosted deployment adds installation and operational complexity
- Ebook conversion depends on installed Calibre binaries
- Support is centered on community resources and documentation
Our verdict on Calibre-Web
Calibre-Web is a self-hosted web application for browsing, reading, organizing, and downloading ebooks stored in a Calibre database. It suits individuals and small teams that want a private library accessible through a responsive HTML5 interface, with support for TXT, PDF, EPUB, KEPUB, CBZ, CBT, CBR, DJVU, and DJV files. Readers can use in-browser reading, OPDS feeds, advanced search, custom shelves, and email delivery to ereaders, while administrators can manage metadata, users, and per-user permissions.
Its strongest fit is the Calibre-centered ecosystem. Calibre-Web can download metadata through extensible plugins, convert ebooks through Calibre binaries, synchronize with Kobo devices, and connect with Google Drive. Authentication options include LDAP, Google OAuth, GitHub OAuth, and proxy authentication, giving administrators several ways to fit the library into an existing environment. These capabilities make it more than a browser bookshelf, but they also favor users who are comfortable maintaining a self-hosted application and its related components.
The project is free and open source, with deployment available through pip or Docker on self-hosted environments, alongside web, Windows, macOS, and Linux access. Community support and documentation are the primary support channels. Calibre-Web is a strong choice for private-library administrators who value control, format flexibility, Kobo synchronization, and permissions. It is less suitable for readers seeking a hosted service with vendor-managed operations or for teams that do not want to maintain the deployment and Calibre-based conversion workflow.
Your product? Our editors can test Calibre-Web in depth and publish a review, labelled as paid · from $149/mo →
Calibre-Web pricing
Calibre-Web fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | web, Windows, macOS, Linux, self-hosted |
| Supported formats | TXT, PDF, EPUB, KEPUB, CBZ, CBT, CBR, DJVU, DJV |
| Annotation tools | Not verified |
| Reading sync | Yes |
| Offline reading | Not verified |
| Library storage | Not verified |
| Deployment | Self-hosted |
| Platforms | Web, Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 6 integrations: Calibre, Kobo, Google Drive, LDAP, Google OAuth, GitHub OAuth |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 22 Sep 2026 |
Calibre-Web integrations
Calibre-Web lists 6 integrations on its own site.
- Calibre
- Kobo
- Google Drive
- LDAP
- Google OAuth
- GitHub OAuth
Alternatives to Calibre-Web
- ReadestA cross-platform ebook reader for broad format support and detailed annotations.9.4
- BookFusionA flexible cloud library for mixed-format readers who want offline access and sync.9.2
- PocketBook ReaderA format-rich free reader for mobile users who need Adobe DRM and reading-position sync.9.0
See all Calibre-Web alternatives →
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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