This SwifDoo PDF article introduces the nine best websites where you can read books for free online.

1. Project Gutenberg

Project Gutenberg is an online digital library that offers ebooks in varied genres. Users may rely on these free book reading websites to find more than 60,000 books in literature and classics. The famous website hosts some of the finest books from the 70s for students. Users may read online books for free without downloading them. The platform negates account registration or payment. Project Gutenberg also lets you download ebooks in ePub and PDF format.

Best for:

• Enables an easy interface to read any book for free
• It offers an audiobook feature as well
• Offers enhanced category filter for easy access

Drawback:

• Focus on providing classic books with a limited genre.

2. Open Library

Open Library is a dedicated project where to read books online for free. The Internet Archive runs it to offer access to over 3,00,00 public domain ebooks and out-of-print books. The project hosts millions of books that have ever been published in a well-defined catalog. It usually allows the downloading of books in PDF or EPUB format. Open Library hosts a user-friendly interface and allows you to borrow a book to read free books online without downloading. The website is a fantastic platform that gives the summary of a book and displays the other works by the book's author. The websites host public domain books.

Best for:

• Let you read entire books online for free without downloading and download the PDF versions of the books in PDF, ePub, and plain text
• Offers an enhanced search bar
• Let you keep track of your favorite ebooks

Drawback:

• Limited access to new releases and best sellers

3. Manybooks

ManyBooks is a well-updated and well-organized platform to access more than 50,000 free books to read online in genres such as romance, vampire horror, and more without downloading them. The website includes easy navigation to scroll down to trending books quickly. The website also has a section for book deals and the editor's choice. How to read books online for free on Manybooks? Get to the website and search for the book by title or author, browse and select the one you think is good to click and read. You can access one book by the categories such as classic, romance or tending. However, users may also download ebooks from the website.

Best for:

• Offers a vast collection of books in more than 45 languages
• Let you enjoy a customized reading experience with varied font sizes
• Free online books to read for adults and children without downloading

Drawback:

• Hosts several pop-up ads

4. ReadAnyBook

ReadAnyBook is a free ebook reading website that lets you access books with ratings and reviews. The website enables you to explore some of the finest works in more than 19 genres, including classic literature and contemporary work. The website hosts thousands of books for its readers. The platform allows new books to be added in just a few steps. However, the website also goes with frequent updates to remove ebooks. ReadAnyBook lets you read free books online without downloading them for adults. The site is also one of the best PDF book downloaders, where you can also download ebooks in PDF, and some other formats. 

Best for:

• Websites host thousands of books you can read online for free without downloading
• It lets you enjoy an enhanced reading experience with a full-screen view
• Offers enhanced flip page feature to fit well on varied screens

Drawback:

• Downloading ebooks is challenging

5. allnovel.net

Are you looking for finely sorted online book reading websites? Enjoy a wide range of novels and stories on allnovel.net. The website offers exciting romance, fantasy, and science fiction novels. Allnovel.net has over 10,000 novels and provides a great way to read free online books without downloading them. The website also offers frequent updates on new-release novels. It lists the top popular books and newest books for you to check. It tells the storyline before reading and allows you to navigate through the page list.

Wondering how to read your favorite books online for free without downloading from allnovel.net? Users must search for their favorite novel on the website and click the book title to read a novel. However, users may also save a book with the available download option in PDF.

Best for:

• Let you easily navigate within chapters of novels
• Enables accessible features to change text size and background color
• Offers features for user reviews, recommendations, and ratings

Drawback:

• Pop-up ads are irritating

6. Classicly

Calssicly is a famous name among ebook readers and among the best websites to read books online for free without downloading. The website hosts thousands of books in various genres and is renowned for its free books from the public domain. The website offers a user-friendly HTML 5 reading environment for easy reading. However, it also provides an easy way to access books in PDF, Kindle, and several other formats to read on various devices, including PCs, laptops, and tablets.

To read a book online for free without downloading, you can select a genre or author, click a book title with a short book story introduction, and click the Read button.

Best for:

• Offers five different font size choices
• It lets you flip, scroll, or swipe through pages
• Support TOC navigation and allow you to go to any page feature.

Drawback:

• Limits collection to classic literature

7. FlipHTML5

Are you looking for a fantastic flipbook collection? Check out some of the amazing flipbooks and interactive publications on FlipHTML5. It is a free book reading site offering over 5 million digital publications. The website hosts interactive magazines, ebooks, brochures, catalogs, storybooks, comics, and other free publications. The website lets users upload and create their flipbooks. FlipHTML5 is a digital publication platform that allows you to read books online for free with no need to download them.

Users may also get the collection in PDF, Zip, Epub, HTML, and image formats when needed. However, the download is restricted to only public domain collections. 

Best for:

• Offers templates and background for customization
• Let you publish flipbooks with cloud and SEO tools integration
• Offers mobile compatibility to view content at ease

Drawback:

• Users may only download publicly accessible FlipHTML5 collection.

8. OpenStax

OpenStax is a free online platform that lets you read free books online without downloading for students. The website offers access to licensed textbooks and educational content, and it hosts more than 30 peer-reviewed textbooks on various subjects such as mathematics, science, economics, and the humanities. It is a user-friendly platform where you can read books online for free without signing up. The open license website allows scholars to easily modify, adapt, and share content. These books are available in PDF, ePub, and HTML format.

Best for:

• The website offers the best material for both teachers and students
• Let you easily print academic content for note-taking
• Offers enhanced screen reading capabilities to adjust text size

Drawback:

• Includes pop-up ads for free online reading

9. Bookbot

If you wonder where to read books online for free without downloading for kids, Bookbot is the digital app and website. The platform is designed to provide fantastic learning with a reading tutor. The books are written in simple and daily words with illustrations, which is good for children’s reading interests. The website also offers a book management tool that helps monitor kids' reading progress. The website includes varied details about every book, including recommendations, summaries, reviews, etc. Bookbot is free to read online books without downloading but also allows downloading the PDF version of the books. 

Best for:

• Let you set goals and monitor your kid's reading progress
• Offers reading lists tool to track and manage books to read
• Provides an easy integrated aloud feature

Drawback:

• Lacks advanced features to scroll through pages

Best Free Book Reader to Enhance Your Reading and Annotating Experience

The professional websites mentioned in this article let you read books without downloading them online for free with a stable internet connection. Users may also use these websites to download favorite books in multiple formats and access them on different devices. However, reading is fun only with good annotation and editing tools. Use a reliable PDF reader and annotator to edit downloaded PDFs. SwifDoo PDF is an advanced PDF manager and editor that lets you enjoy an improved reading experience.

Read books online for free from the above top websites or download them to view books with SwifDoo PDF annotation capabilities.

• Users may highlight, mark, add links, add text notes, and comment on books downloaded from book reader apps like SwifDoo PDF. The Swifdoo PDF offers numerous valuable tools for reading and editing PDF books.
• Moreover, it also helps you enjoy a fantastic reading experience with different reading modes. The tool lets you move between books, change the layout, format text, and add images to the PDF.
• SwifDoo PDF is a valuable tool for almost everyone. Teachers can use it to formulate study notes, and students can use it to annotate books to finish paperwork and assignments efficiently. The PDF software also converts PDFs to EPUB ebook formats.
• Users may easily use SwifDoo PDF to read, view, manage, annotate, convert, merge, split, and compress PDF files.

SwifDoo PDF has separate apps for Android and iOS users.

Conclusion

The article includes a well-curate list of top-rated websites that provide thousands of online books to read for free in English or any language without downloading. Users may also rely on these platforms to easily download books as PDFs and read them anywhere and everywhere. Editing books from the best free eBook site should be easy with efficient SwifDoo PDF software. The advanced software supports varied tools to annotate and edit ebooks to ensure easy and efficient reading experiences.