Best Ebooks in 2026

Internet Archive is a non-profit digital library offering free universal access to books, movies...

Key Archive.org features:

Extensive Collection Free Access Wayback Machine PDF and ePub Formats

Calculate in a notebook and share — from everyday math to engineering.

Key Calcumber features:

🌿 Naturally type expressions 🔗 Copy and share 🧩 Variables and constants 🧪 Scientific functions

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ZLibraryPart of Z-Library project. The world's largest ebook library.

Key Z-Lib features:

Extensive Library Free Access User-Friendly Interface Multiple Formats

Ebook manager, viewer & converter.

Key calibre features:

Open Source Wide Format Support Library Management Conversion Tools

Open Source

The ultimate goal of the Open Library is to make all the published works of humankind available to...

Key Open Library features:

Accessibility User Contributions Variety of Formats Advanced Search Filters

Open Source

Online library of downloadable e-books that focuses on quality and modern standards in typography.

Key Standard Ebooks features:

High-Quality Formatting Public Domain Works Open Source Multiple Formats

Open Source

It provides mass and public access to tens of millions of research papers.

Key SCI-HUB features:

Access to Research Overcomes Paywalls Resource for Developing Countries Promotes Open Science

Google Play Books lets you search, preview, and buy millions of books using Google Book Search.

Key Google Play Books features:

Extensive Library Cross-Platform Accessibility Offline Reading Integration with Google Services

Gutenberg Books is free to use Android, and iOS app with more than 50,000 titles from classic to top hits and features all the important books ever published in history.

Key Gutenberg Books features:

Free Access Public Domain Works Extensive Collection Multiple Formats

Open Source

Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...

Key Amazon Kindle features:

Portability Battery Life E-Ink Display Built-in Store

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

Key Calibre Web features:

Open Source User-Friendly Interface Cross-Platform Mobile Support

Open Source

FBReader is an e-book reader for various platforms. Features:.

Key FBReader features:

Platform Support Format Compatibility Customization Library Management

archive.is allows you to create a copy of a webpage that will always be up even if the original link is down.

Key Archive.md features:

Preservation No Paywall Permanent URL Ad-Free Experience

Search engine of shadow libraries: books, papers, comics, magazines.

Key Annas-Archive.org features:

Free Access to Information Comprehensive Collection User-Friendly Interface Preservation of Content

Open Source