Unknown

Ebook Reader

Ebook Library

PDF Reader

Calibre Web

Self-Hosted

Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing Calibre database.

calibre

Amazon Kindle

FBReader

"TinyOPDS" is kinda "one-touch solution", which means that the program is very easy to work.
On the scanner page

TinyOPDS

Windows

Linux

Lightweight and simple OPDS server for the home use.

Komga

Ubooquity

BicBucStriim just displays what is stored in your Calibre library. The start page lists the most recent books in your library, assuming that they are new and therefore need to be read:

In addition to that the main menu shows four more ways to navigate through your library: by book title, author name, book tag or series name. All sections work in the same way, you either scroll through the listing or search by entering something in the search bar at the top.

Once a book is selected, the app shows a details page with title, author information, tags and series if available, and of course the book description. In the download section of that page there are download links for all book formats stored in the Calibre library. Click on a link and the book file will be immediately sent to your device.

BicBucStriim

BicBucStriim streams digital books - it provides web-based access to your e-book collection. BicBucStriim is a simple PHP application that reads the Calibre data and publishes it in HTML form and as OPDS book catalog.

Kavita

DRM Free

No Digital rights management (DRM), i.e. no copy protection.

Libreture

Online

Quickreader

EPUBReader

Cool Reader 

Aldiko

Moon+ Reader

Stanza

Lucidor

ReadMe

E-book storage for indie readers. Keep all your e-books, digital comics, and magazines together in one place, organise your reading lists, and discover great new titles with Libreture. The ethical e-book alternative to Goodreads.

Apps with 'OPDS Server' feature

Calibre Web

Calibre Web Features

Top 3 alternatives

TinyOPDS

TinyOPDS Features

Top 3 alternatives

BicBucStriim

BicBucStriim Features

Top 3 alternatives

Libreture

Libreture Features

Top 3 alternatives