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janeczku/calibre-web

Analysis updated 2026-06-24

17,123FluentAudience · developerComplexity · 2/5Setup · moderate

TLDR

A self-hosted web frontend for a Calibre ebook library. Browse, read, and send books to e-readers from any browser, with multi-user accounts and Kobo sync.

Mindmap

mindmap
  root((calibre-web))
    Inputs
      Calibre database
      Ebook files
      User accounts
    Outputs
      Web reader
      Kobo sync
      Send-to-Kindle
    Use Cases
      Browse ebooks remotely
      Share library with family
      Sync to e-readers
    Tech Stack
      Python
      Flask
      Docker
      SQLite
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What do people build with it?

USE CASE 1

Self-host your Calibre library so you can read books in a browser

USE CASE 2

Share an ebook collection with family members under separate accounts

USE CASE 3

Sync your Kobo e-reader against a personal Calibre-Web instance

USE CASE 4

Send books to a Kindle with one click from your phone browser

What is it built with?

PythonFlaskDockerSQLite

How do you get it running?

Difficulty · moderate Time to first run · 30min

Needs an existing Calibre library or you must create one before pointing the app at it.

In plain English

Calibre-Web is a self-hosted web application that lets you browse, read, and download your eBook collection through a web browser. Think of it as a personal Netflix for your ebook library, you run it on your own computer or server, and then access your books from any device via a browser. It works by connecting to a Calibre database (Calibre is a free desktop app for managing ebooks), reading the library you already have, and presenting it through a clean, responsive website. You don't need to keep the Calibre desktop app running once set up. Key features include a multi-user system with per-user permissions, an admin interface, support for over 20 languages, and the ability to send ebooks directly to e-readers with a single click. It can sync with Kobo devices, supports in-browser reading for multiple formats, and lets users upload new books including audio formats. Login options include Google, GitHub, and LDAP (a corporate directory system), as well as a "magic link" for easy access on e-reader devices. You can install it with a single Python command (pip install calibreweb) or run it via a pre-built Docker image (a self-contained software package). It requires Python 3.7 or newer and optionally the Calibre desktop application for on-the-fly format conversion. This is the right tool for anyone who has a Calibre ebook library and wants to access it remotely, share it with household members, or read books in a browser without copying files around.

Copy-paste prompts

Prompt 1
Run Calibre-Web in Docker pointing at my existing Calibre library folder and expose it on port 8083
Prompt 2
Set up Google login for Calibre-Web so my household can sign in without passwords
Prompt 3
Configure Calibre-Web Kobo sync so my Kobo reader pulls books directly from my server
Prompt 4
Add the Calibre desktop binary so Calibre-Web can convert epub to mobi on the fly

Frequently asked questions

What is calibre-web?

A self-hosted web frontend for a Calibre ebook library. Browse, read, and send books to e-readers from any browser, with multi-user accounts and Kobo sync.

What language is calibre-web written in?

Mainly Fluent. The stack also includes Python, Flask, Docker.

How hard is calibre-web to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is calibre-web for?

Mainly developer.

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