Epub and Comic Readers/Editors

Kchmviewer is a free, open-source CHM (MS HTML help) and EPUB viewer for Unix, Mac and Windows systems.

save-as-ebook - Save a web page/selection as an eBook (.epub format) - a Chrome/Firefox/Opera Web Extension

Inspire your readers on their desktops, iPhones, Pads and Android Tablets! You can create very fast and efficiently an interactive pageflip, ePaper or flipbook from your own PDF with page2flip. Integrating videos, flash animations and links is also possibly. You can even create a design with an own logo.

Available languages: German, English and Portuguese.

Jomic is a viewer and converter for comic books stored in CBZ, CBR and PDF files.

Scriba eBook Maker is a project for building ebooks using contents already available in other formats.

GonVisor is a viewer of pictures, comics, magazines, books, images in electronic format. Created to view image sequences, fitting them to the proper size, and to create and open cbr/cbz/cba/zip/rar/ace files of images. Managing these kinds of files, GonVisor allows the user to group in only one file an unlimited amount of sorted pictures, as an album, access of which can be protected with a password.

MComix is an user-friendly, customizable image viewer. It is specifically designed to handle comic books, but also serves as a generic viewer. It reads images in ZIP, RAR, 7Zip or tar archives as well as plain image files. It is written in Python and uses GTK+ through the PyGTK bindings, and runs on both Linux and Windows.

MComix is a fork of the Comix project, and aims to add bug fixes and stability improvements after Comix development came to a halt in late 2009.

A modern audio book player for Linux using GTK+ 3.

Here are some of the current features:
Import your audiobooks into Cozy to browse them comfortably
Sort your audio books by author, reader & name
Remembers your playback position
Sleep timer
Playback speed control
Search your library
Offline Mode! This allows you to keep an audio book on your internal storage if you store your audiobooks on an external or network drive. Perfect for listening on the go!
Add mulitple storage locations
Drag & Drop to import new audio books
Support for DRM free mp3, m4a (aac, ALAC, …), flac, ogg, opus, wav files
Mpris integration (Media keys & playback info for desktop environment)
Developed on Fedora and tested under elementaryOS

Read the books you love without having to worry about different format complexities like epub, pdf, mobi, cbr, etc.

Cool Reader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Understands a number of text document formats, suppurt OPDS (in new ui-opengl version). Fully customizable palette, text reformatting with any font size, font antialiasing, extra smooth scrolling and a lot of other features turn reading into a pleasure. Read Aloud function saves your eyes.

Features:

• Read electronic books in FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI formats
• Stylesheet support
• A lot of customizations for better reading performance

Android version features:

• selection of the file to open the file via the built browser or from an external file manager
• support online catalogs of books (OPDS)
• a list of recently opened files
• change the font to use custom fonts, font size, fat content, inversion
• font smoothing
• support for external files CSS (Cool reader WiKi CSS)
• flipping book joystick / touch screen / volume keys
• jump to a page by number and percentage
• bookmarks
• contents of a book
• search Text
• page turning animation (as in paper book or shift)
• book covers in the list of books
• Rotate the image sensor
• separate menu button menu in the list of books
• texture background page
• custom actions on tap-zones
• configurable action buttons
• the ability to lock the touch screen and trackball
• autorepeat paging
• Support for installation on SD 2.2
• following a link - long press, return - through the menu or on the designated button or tap zone action
• Entering text selection - through the menu (you can also assign a button or tap-zone)
• Optional text selection - double-tapa
• highlighted text is copied to the clipboard
• search for words in a dictionary - Fora Dictionary or ColorDict
• Adjusting the brightness slide along the left edge of the screen
• Sorting books in the browser files by name, author, title, file

Win32, Linux, Android. Ported on some eInk based devices-

Calibre2opds can generate OPDS and HTML catalogs from the metadata of the calibre e-book library manager. These catalogs can then be used both to browse your e-book library online and also to download books on demand.

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

Calibre is a free and open source e-book library management application made by users, for users. Many languages, designed around the concept of the logical book, i.e., a single entry in your library that may correspond to actual e-book files in several formats.

Calibre can sort the books in your library by title, author, date added, date published, size, rating, or series, along with extra metadata such as tags and personal comments. You can easily search your book collection for a particular book, based on any of this information. Calibre can also go onto the internet to find online books based on existing title/author or ISBN information.

In addition, Calibre also:
-syncs to your ebook reader
-downloads news from the internet and converts it into ebook form
-offers a ebook viewer that can display all major ebook formats

Features:

Library Management
E-book conversion
Syncing to e-book reader devices
Downloading news from the web and converting it into e-book form
Built-in e-book viewer
Content server for online access to your book collection
E-book editor for the major e-book formats

HakuNeko is a cross-platform downloader for manga and anime from various websites. HakuNeko was made to help users who download media for circumstances that requires offline usage. The philosophy is ad-hoc consumption, get it when you want to read/watch it. It is not meant to be a mass downloader to stock up thousands of chapters that are just collected and will probably never be read.

Thorium Reader is a free, open source multi-language EPUB reader for Windows 10, MacOS and Linux. It's privacy aware and highly accessible for visually impaired and dyslexic people.

A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux and Web.

An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.

OpenComic is a free and open-source comic and manga reader for Windows, Mac and Linux, written with Node.js and using Electron.

Features

• Support this image formats: JPG, PNG, APNG, GIF, WEBP, SVG, BMP, ICO
• Support this compressed formats: PDF, RAR, ZIP, 7Z, TAR, CBR, CBZ, CB7, CBT
• Manga read mode
• Double page view
• Bookmarks and continue reading
• Floating magnifying glass
• Reading in scroll or slide

A simple and modern GTK eBook viewer, built with GJS and Epub.js.

Features
View EPUB files
Two-page view and scrolled view
Customize font and line-spacing
Light, sepia, dark, and invert mode
Reading progress slider with chapter marks
Bookmarks and annotations
Find in book
Quick dictionary lookup
Touchpad gestures: use two-finger swipe to turn the page

View EPUB files. Foliate is based on Epub.js, and supports both two-page view and scrolled view. Customize font and line-spacing. Choose between light, sepia, dark, and invert mode.

Easy navigation. View the table of contents, or use the find in book feature. Reading progress slider with chapter marks makes it easy to find your way through the book.

Quick dictionary lookup. Foliate uses metadata included in the eBook to determine which language to lookup. This feature is powered by Wiktionary, the free dictionary.

Add bookmarks, highlights, and notes. Foliate stores your reading progress, bookmarks, and annotations in your XDG data directory as plain JSON files, so you can export or sync them easily.

Sigil is a multi-platform ebook editor. It is designed to edit books in ePub format.

Sigil is a multi-platform EPUB ebook editor with the following features

• Online Sigil User's Guide, and Wiki documentation
• Free and open source software under GPLv3
• Multi-platform: runs on Windows, Linux and Mac
• Full UTF-16 support
• Full EPUB 2 spec support
• Multiple Views: Book View, Code View and Preview View
• Complete control over directly editing EPUB syntax in Code View
• Table of Contents generator with multi-level heading support
• Metadata editor with full support for all possible metadata entries (more than 200) with full descriptions for each
• User interface translated into many languages
• Spell checking with default and user configurable dictionaries
• Full Regular Expression (PCRE) support for Find & Replace
• Supports import of EPUB and HTML files, images, and style sheets,
• Documents can be validated for EPUB compliance with the integrated FlightCrew EPUB validator
• Embedded HTML Tidy: all imported files have their formatting corrected, and your editing can be optionally cleaned