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Discover the 40 best sites to download books for free in 2025 — explore ebooks, audiobooks, and textbooks legally from trusted online libraries.

Are you a book lover looking for legal and free ways to access ebooks, audiobooks, or textbooks? Good news — there are 40 sites to download books for free in 2025 that make reading more accessible than ever. Whether you love classics, self-development, technology, or fiction, these platforms provide safe, high-quality downloads across genres.

This guide lists the best and most trusted websites where you can download free books legally — perfect for students, researchers, and lifelong readers.

Why Download Free Books Online?

In today’s digital world, reading doesn’t have to cost a fortune. Free book platforms allow you to:

Access thousands of ebooks and audiobooks without paying a dime.
Read anywhere, on any device — from laptops to smartphones.
Discover rare, classic, or out-of-print titles.
Support open-access education and literary preservation.

Now, let’s explore the top 40 websites to download free books in 2025.

Top 40 Sites to Download Books for Free

Here’s a curated list of the best platforms for free ebook downloads and online reading:

Planet eBook – Focuses on classic literature in high-quality PDF formats.
Free-eBooks.net – Offers free fiction, non-fiction, and academic works with free membership.
ManyBooks – Download thousands of public domain and indie author books.
LibriVox – Access free audiobooks read by volunteers around the world.
Internet Archive – A digital library containing millions of books, videos, and historical documents.
BookBub – Find free and discounted ebooks across major platforms.
Open Library – Borrow and download books from a massive open-access library.
BookBoon – Specializes in free business and academic ebooks.
Feedbooks – Great for public domain and original works.
Smashwords – Discover indie authors offering free book downloads.
Project Gutenberg – The oldest digital library, with over 70,000 free books.
Google Books – Preview or download thousands of free, full-view books.
PDFBooksWorld – Converts public domain works into professionally formatted PDFs.
FreeTechBooks – Offers computer science, programming, and engineering books.
Bookyards – Download free ebooks and reference materials.
GetFreeBooks – Features free ebooks across multiple genres.
eBookLobby – Hosts categorized collections of free downloadable books.
FreeComputerBooks – Perfect for IT, data science, and programming learners.
OpenCulture – Curates free ebooks, audiobooks, and online courses.
Library Genesis (LibGen) – A free academic search engine for books and scientific papers.
Goodreads – Discover and access free book giveaways and author promotions.
Obooko – Offers thousands of free novels and short stories.
O'Reilly – Occasionally features free trial access to tech and business books.
PDF Drive – One of the largest free PDF book download libraries.
Anna’s Archive – A powerful meta-search engine for open-access books.
PDF Room – Download free books in PDF format without sign-up.
PDF Coffee – Browse thousands of user-uploaded free documents and books.
Dokumen Pub – Access free academic and technical publications.
Z Library – A huge global platform offering millions of ebooks and journals.
Ocean of PDF – Popular for fiction and non-fiction book downloads.
Dirzon – Free book-sharing site with a range of genres and formats.
Booksfree – Provides book rentals and free previews.
EngBooksPDF – Engineering and academic textbooks available for free.
Elejandria – Focuses on Spanish and English classic literature.
Espaebook – Offers Spanish-language ebooks for free download.
Wonderful Books – Curated free ebooks for all age groups.
Lectuland – Spanish-language digital library offering free ebook downloads.
LeerLibrosOnline – Read Spanish ebooks online for free.
ePubLibre – Download free ebooks in ePub format, especially classics.
Standard Ebooks – Professionally edited public domain books in modern formats.

Tips for Downloading Free Books Safely

While exploring these platforms, always ensure:

You’re downloading from legal and verified sources.
You avoid suspicious links or files from unverified third-party sites.
You use trusted antivirus software for extra protection.
Prefer PDF, EPUB, or MOBI formats for best compatibility across devices.

Best Sites for Students and Researchers

If you’re a student or academic researcher, the following are your best picks:

Library Genesis – Ideal for academic research materials.
Internet Archive – Perfect for historical, scientific, and open-access documents.
Open Library – Excellent for borrowing textbooks and journals.
PDFBooksWorld and FreeTechBooks – Great for tech and science learners.

Also, check our internal guide on Top Free Online Courses for Students 2025 to combine your reading with skill-building.

With these 40 sites to download books for free, your reading journey just got better. Whether you’re diving into fiction, science, or personal development, there’s a resource here for you.

Start exploring today — visit Planet eBook, Open Library, or PDF Drive and expand your knowledge at no cost.

Don’t forget to bookmark this list and share it with fellow readers, students, and researchers!

Conclusion

Reading should never be limited by cost or access. Thanks to these free ebook download sites, everyone can enjoy quality content, learn new skills, and discover new ideas in 2025. Whether you prefer English classics, Spanish novels, or scientific papers, these platforms have you covered.

Take advantage of this digital age — download, read, and grow.