Top 10 Online eBook Readers
Updated: May 19, 2026 | Editor: Maria Lin
Online eBook Readers allow to open and read electronic books in web browser online
1
Cute and simple mobile app for reading books on iOS and Android. Provides bookmarks, 3-colors highlights, interactive links and notes, dark mode, customized settings (Fonts, Fields, Text size, screen Brightness, Page scrolling, ets). Suppots text formats: EPUB, MOBI, DOC, DOCX, TXT, FB2, PRC, RTF, ODT, HTML, AZW, AZW3. Completely AD-FREE. Syncs ebooks and reading progress between devices. Free web e-reader is also available. You can upload books via iTunes, import your files from the email, web browser, cloud storages (iCloud, Google Drive, Dropbox, Yandex.Disk etc).
2
Cross-platform EPUB reader that supports ePub2 and most ePub3 standards and works everywhere: on iPhone, iPad, Mac, Android, Windows, Kindle Fire and even via the web version. There's a free version that provides basic functionality, including a simple book organizer. The paid version allows you to store books in a cloud account (10 GB), sync books and reading progress between devices, add annotations and comments, choose different themes, and customize the reader's appearance more flexibly.
3
Free online service in which you can upload, preview and read your ebooks in EPUB, MOBI, AZW3, PDF, and CBR formats. Doesn't require downloading any software. Even large ebooks are rendered instantly. It provides easy book navigation thanks to a built-in thumbs pane and table of contents and full-text keyword search. It offers numerous customization options to enhance your reading experience. You can customize the font size, typeface, color scheme to make reading as comfortable as possible. You can also adjust the brightness to suit your surroundings and reduce eye strain.
4
Cloud-based eBook manager that allows users to create a personalized online library, accessible from any device. It offers a simple interface, organization features for sorting and tagging books and AI integration for additional information. Provides free open-source version
5
Bluefire helps businesses and institutions of all kinds launch innovative new products, and platforms for the distribution and use of digital content. Bluefire has the industry knowledge, relationships, apps, SDKs, and the expertise to make your ebook system thrive
6
Xodo is a set of online tools that allow to securely view, read, annotate, convert and work with your PDF books. Conversion directions are Word, HTML, TXT, PowerPoint and others. Xodo also provides free PDF reader for Windows, Mac and Linux that allows to open, read, print PDFs offline on your desktop, while Xodo Mobile all-in-one app - enable to do all this on iOS and Android.
7
Whether you’re an author looking to launch your next book or an educational institution looking to improve student success, Pressbooks can help you easily create, adapt, and share accessible high-quality digital books, learning materials, curriculum and more.
8
EPUBReader is a browser addon which lets you read ePub-files without DRM just in the browser. You don't need to install additional software. If you click on a link to an ePub-file, you are normally prompted by the Firefox or Chrome "save as" dialog. With EPUBReader installed, the ePub-file is downloaded, processed and directly displayed ready to read. It runs on every operating system (Windows, MacOS X, Linux)
9
Readk.it is a responsive EPUB reading system taking advantage of the abilities of modern web browsers to allow an attractive reading experience on all manner of devices. Readk.it is free for all to use and adapt.
10
Manifold is a free open-source platform for publishing academic or school libraries on the web. You can add nearly anything: video, audio, images, downloads, data visualizations, PDFs, external links, and more. Authors and readers can annotate texts and comment on resources. Students and instructors can form reading groups to annotate collaboratively.
