KOReader Alternatives

SumatraPDF

Sumatra PDF is a slim, free, open-source PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI/FB2 viewer for Windows. Why another PDF reader? Sumatra has a minimalistic design....

Features:

• Lightweight
• Low memory usage
• Highlighter
• Optimal performance
• Tabbed interface
• AzW Reader
• Data portability
• Export to office formats
• Global bookmarks
• Multi Format Reader
• OXPS File Reader
• Portable
• PRC File Reader
• Quick search
• Signing PDF Documents
• XOD File Reader

calibre

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....

Features:

• Batch conversion
• Built-in e-Book converter
• Built-in viewer
• Customizable
• Book organization
• Custom cover image
• Book manager
• Portable
• Rss to Kindle
• Auto update
• Bibliography generator
• Built-in editor
• Built-in Adobe Flash Player
• Built-in PDF converter
• DRM Free
• Email notifications
• Facebook integration
• File-sync
• Handwritten Notes
• Indexed search
• Integrated PDF Viewer
• Library management
• Live Push Notifications
• Live updating
• Multiple languages
• Read fb2 format
• SMS Reminders
• Supports All Ebooks Format
• Sync with e-reader
• Update notifier

Okular

Okular is a universal document viewer developed by KDE. Okular works on multiple platforms, including but not limited to Linux, Windows, Mac OS X, *BSD, etc.

Features:

• PDF annotation
• Lightweight
• Low memory usage
• Export to PDF
• Tabbed interface
• Text to Speech
• Chapter cursor
• Document reader
• Fill PDF Forms
• Text Highlighting
• Trim margins

Amazon Kindle

Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and Android-based device. You can discover and read over 630,000 books in...

Features:

• Annotations and Flashcard Review
• Ebook cloud sync
• Sync across Devices
• Indexed search

FBReader

FBReader is an e-book reader for various platforms. Features: Supported e-book formats are: ePub, an international e-publishing standard. ...

Features:

• iPhone/iPod sync
• Multiple languages
• Night mode/Dark Theme
• Sync between devices

Apple Books

Store and library for countless books and audiobooks on iPhone, iPad, iPod touch, and Apple Watch.

Features:

• Android Sync
• Built-in Commenting System
• Free books
• Library management
• Text Highlighting

Moon+ Reader

Innovative book reader with powerful controls & full functions: • Read thousands of ebooks for free, supports online ebook libraries • Read local books with...

Features:

• Text to Speech
• Dropbox integration
• Google Drive integration
• Network Monitoring

Cool Reader

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...

Features:

• Interface Overlay
• Library Manager
• Portable

Document Viewer

Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid . Supports the...

ReadEra

Read book files in EPUB, PDF, DOC, DOCX, RTF, TXT, DJVU, FB2, MOBI and CHM formats. Supports chapters, bookmarks, page style. Saves the current reading position....

Features:

• Auto fetch album covers
• Education
• Fullscreen support
• Material design
• Night mode/Dark Theme