How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Libby suits most readers as the best free route to current books, lending ebooks and audiobooks from your public library with just a card.
- Hoopla suits readers who hate waitlists, offering instant borrows set by your library's monthly limit instead of holds.
- Project Gutenberg suits classic literature lovers, with 75,000 or more public-domain titles free to download with no account needed.
- Kindle suits readers who already own files or want free classics, with a strong reader for EPUB, PDF, and Kindle formats.
- Free means different things here: library lending, public-domain downloads, and file readers are all legal, while coin-metered apps and pirate sites are not.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Libby | Library lending of current books | Free | Yes |
 Hoopla | Instant borrows, no waitlists | Free | Yes |
 Project Gutenberg | Public-domain classics | Free | Yes |
 Open Library | Borrowing classic and modern books | Free | Yes |
 Kindle | Free classics plus owned files | Free | Yes |
 Google Play Books | Free titles plus owned files | Free | Yes |
 Wattpad | Free original fiction | Free | Yes |
 KOReader | Public-domain reading on e-readers | Free | Yes |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The best app to read books for free online
Starting priceFree
Free planYes
Libby suits most readers as the best free route to current books. Operated by OverDrive, it connects directly to your regional public library system and lends ebooks and audiobooks, including current bestsellers, completely free with a library card. Its reader is clean and well designed, with bookmarks, adjustable reading fonts, audiobook speed controls, and offline downloads, and most libraries allow several holds at once.
The limits are waitlists and local variation. Popular titles carry holds, selection varies by library system, and loan periods and hold limits are set by your library. Libby fits best for readers with a library card who want current books free and can wait for a hold.
What we like- Free bestsellers and new releases through your public library card
- Clean reader with bookmarks, adjustable fonts, and offline downloads
- Audiobook speed controls
Watch out for- Waitlists for popular titles
- Selection varies by library system
- Loan periods and hold limits set by your library
Starting priceFree
Free planYes
Hoopla suits readers who hate waitlists. Its instant-borrow model means no holds: if your library offers Hoopla, you borrow immediately, up to a monthly limit your library sets, across ebooks, audiobooks, comics, movies, and music. For a weekend read when Libby's hold list is long, Hoopla is the companion app.
The trade is monthly limits and availability. Your library sets how many titles you can borrow each month, selection varies by library, and some libraries do not offer Hoopla at all. Hoopla fits best as Libby's no-waitlist companion, not a standalone replacement.
What we like- Instant borrows with no waitlists
- Ebooks, audiobooks, comics, movies, and music
- Simple library-card signup
Watch out for- Monthly borrow limit set by your library
- Selection varies by library
- Some libraries do not offer Hoopla
Starting priceFree
Free planYes
Project Gutenberg suits classic literature lovers. Its catalog of 75,000 or more public-domain titles, from Jane Austen and Charles Dickens to Mark Twain and Homer, is completely free with no account required, in EPUB, PDF, Kindle, and HTML formats. For a reader whose list skews toward the classics, Gutenberg is an essential, no-frills archive.
The limits are catalog age and jurisdiction. It offers classics only, no current bestsellers, its interface is older, and it assesses copyright under United States law, so readers elsewhere should check local rules before downloading. Project Gutenberg fits best for classics readers who want instant, legal, free downloads.
What we like- 75,000 or more public-domain titles free with no account
- EPUB, PDF, Kindle, and HTML formats
- The oldest digital library on the internet
Watch out for- Classics only, no current bestsellers
- Older interface
- Copyright status varies outside the United States
Starting priceFree
Free planYes
Open Library suits readers who want to borrow beyond the public domain. Backed by the Internet Archive, it offers digital copies of classic and modern works in PDF and EPUB, with a free account for borrowing, and it is useful for finding specific editions. For a reader hunting an older edition or a book Gutenberg lacks, Open Library is worth checking.
The trade is access model. Many results are borrow-only loans rather than open files, a free account is needed to borrow, and in-copyright loans carry waitlists. Open Library fits best as a borrowing supplement to Gutenberg and Libby.
What we like- Borrowing of classic and modern books
- PDF and EPUB formats
- Backed by the Internet Archive
- Useful for finding editions
Watch out for- Many results are borrow-only loans, not open files
- Free account needed to borrow
- Reader can hit verification pages
- In-copyright loans have waitlists
Starting priceFree
Free planYes
Kindle suits readers who already own files or want free classics in a polished reader. Its app offers thousands of public-domain classics, indie books, and rotating promotional titles free, syncs reading position across devices, and reads files you already own. For a reader with a Kindle library or a folder of EPUBs and PDFs, the Kindle app is a strong free reader.
The limits are store dependence. Its best experience sits inside Amazon's store, its free content is mostly classics and promos rather than current bestsellers, and library lending needs Libby as a bridge. Kindle fits best as a reader for classics and owned files, with Libby for current books.
What we like- Thousands of public-domain classics and rotating promotional titles free
- Strong reader with sync across devices
- Reads files you already own
Watch out for- Best experience inside Amazon's store
- Free content is mostly classics and promos, not current bestsellers
- Library lending needs Libby as a bridge
Starting priceFree
Free planYes
Google Play Books suits readers who want a simple free reader for owned files plus a free catalog. Its hundreds of free titles cover classics and promos, its upload feature handles your own EPUB and PDF files, and it reads across devices with sync. For an Android reader who wants one app for free and owned books, Play Books is convenient.
The trade is catalog size. Its free catalog is smaller than Gutenberg's, current bestsellers are paid, and uploads need a Google account. Google Play Books fits best as a free reader for owned files and free titles.
What we like- Hundreds of free titles
- Upload your own EPUB and PDF files
- Reads across devices with sync
- Clean, simple reader
Watch out for- Free catalog is smaller than Gutenberg's
- Bestsellers are paid
- Uploads need a Google account
Starting priceFree
Free planYes
Wattpad suits readers who want free original fiction. Its millions of community-written stories across genres, most free forever, cover romance, fanfiction, young adult, and more, with direct writer-reader interaction through comments and votes. For a reader who loves discovering new writers, Wattpad is unmatched in volume.
The limits are quality and scope. Quality varies sharply by story, it offers original fiction only rather than published books, and some stories use coin or paid chapters. Wattpad fits best for original-fiction readers, not for published-book readers.
What we like- Millions of community-written stories across genres, most free forever
- Huge romance, fanfiction, and young adult catalogs
- Direct writer-reader interaction
Watch out for- Quality varies sharply by story
- Original fiction only, no published books
- Some stories use coin or paid chapters
Starting priceFree
Free planYes
KOReader suits e-reader owners who want Gutenberg's catalog in a better reader. Its free, open-source app opens up Project Gutenberg's 75,000 or more titles on supported e-readers, with strong typography, dictionary lookup, and annotation features, and it works on many devices beyond the big stores. For a Kobo or older Kindle owner, KOReader turns a basic reader into a serious reading tool.
The trade is setup effort. It needs manual install on most e-readers, offers no store or lending built in, and its interface is powerful but technical. KOReader fits best for readers comfortable with a manual install who want the best free reading experience on an e-reader.
What we like- Free and open source
- Opens up Gutenberg's 75,000 or more titles on e-readers
- Strong typography, dictionary, and annotation features
- Works on many devices
Watch out for- Needs manual install on most e-readers
- No store or lending built in
- Interface is powerful but technical
How we chose
We compared these apps on what free actually means, catalog breadth, reader quality, and legality, since free reading apps mix four different models: library lending, public-domain downloads, file readers, and coin-metered apps. Pricing figures come from vendor pages and current comparison guides checked in October 2026, and any figure we could not confirm is marked as See website. We did not claim hands-on testing. Instead we weighed public documentation, pricing pages, and user reviews, plus the practical difference between borrowing a book and owning a file.
What to check before you pick
Start with a library card. Libby is the single most powerful tool for free digital reading in 2026, and Hoopla is its no-waitlist companion, so get a card and install both before anything else. Next, add Gutenberg or KOReader for classics, which need no wait and no card. Finally, use Kindle or Google Play Books as your reader for files you already own, since both sync across devices.
Legal free books only
This guide covers only legal free sources: library lending through Libby and Hoopla, public-domain downloads through Project Gutenberg and Open Library, and free titles plus owned files through Kindle, Google Play Books, Wattpad, and KOReader. Pirate sites that offer copyrighted books free are not listed, and they carry legal and malware risks. Apps that advertise free but meter reading through coins or timers are a different trap: the library route beats them on both cost and quality.
The combination that works
No single app covers everything. The power move is a combination: Libby for holds on new bestsellers, Hoopla for an instant weekend read, Gutenberg or KOReader for classics, and Kindle or Play Books for files you own. That stack covers current books, classics, and owned files, all free and legal.
Frequently asked questions
What is the best free app for reading books?
Libby is the best overall free app, lending current bestsellers and new releases from your public library with just a card. Pair it with Hoopla for instant borrows and Project Gutenberg for classics.
Do I need a library card to read books free?
For Libby and Hoopla, yes: both lend through your public library. Project Gutenberg, Open Library's open files, Wattpad, and KOReader need no card, though Open Library borrowing needs a free account.
Are public-domain books really free?
Yes. Books whose copyright has expired, such as Austen, Dickens, and Twain, are free to download and read. Project Gutenberg assesses copyright under United States law, so readers elsewhere should check local rules.
Can I read free books on a Kindle?
Yes. The Kindle app offers thousands of free public-domain classics and rotating promotional titles, reads files you already own, and receives Libby loans sent to your Kindle.
Why do some free apps charge coins to read?
Some apps advertise free but meter reading through coins or timers, which can cost more than a paperback habit over time. Library apps and public-domain archives are genuinely free and offer better books.
What is the difference between Libby and Hoopla?
Libby lends from your library's catalog with holds for popular titles, while Hoopla offers instant borrows with no waitlists but a monthly borrow limit set by your library. Use both: Libby for new releases, Hoopla for instant reads.
Sources we checked (8)
- https://www.overdrive.com/apps/libby
- https://www.hoopladigital.com
- https://www.gutenberg.org
- https://openlibrary.org
- https://www.amazon.com/kindle
- https://play.google.com/store/books
- https://www.wattpad.com
- https://koreader.rocks
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.