Best Ebook Reader Software in 2026
Updated
In short: Readest is ranked #1 of 27 as of 4 October 2026, ahead of Libby and Adobe Digital Editions. The best-ranked option with a free plan is Libby. The lowest first paid tier on this page is Readest at $4.99/mo.
Ebook reader software can vary in the formats it supports, how it stores a library, and which reading features it offers. Readest and Libby lead the ranking, followed by eBoox and PocketBook Reader. Compare supported formats and library storage with offline reading and reading sync, especially if you read across devices or without a connection. Annotation tools may matter if you like to mark up books. Supported platforms, free-plan availability, and paid-from pricing round out the comparison; use them to narrow the options to your reading habits and devices.
27 ebook reader software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Readest Top pick · 7.6 Free plan · $4.99/mo
#2 Libby Runner-up · 7.5 Free plan · Free
#3 Adobe Digital Editions Also great · 7.2 Free plan · Free
- Free plan AndroidiOSLinuxmacOSWebWindows
- Free plan
- Yes
- Paid from
- 4.99 /mo
- Supported platforms
- web, Windows, macOS, Linux, iOS, Android
- Supported formats
- EPUB, PDF, MOBI, AZW, AZW3, FB2, CBZ, ZIP, TXT, Markdown
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms$4.99/mofirst paid tier About ReadestVisit site - Free plan AndroidiOSmacOSWebWindows
- Free plan
- Yes
- Supported platforms
- web, windows, macos, ios, android
- Supported formats
- EPUB, PDF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Free plan AndroidiOSmacOSWindows
- Free plan
- Yes
- Supported platforms
- Windows, macOS, iOS, Android
- Supported formats
- EPUB, EPUB3, PDF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Free plan iOSLinuxmacOSWindows
- Free plan
- Yes
- Supported platforms
- Windows, macOS, Linux, iOS, iPadOS
- Supported formats
- EPUB 2/3, Fixed Layout EPUB, PDF, DAISY 2.02/3, Web Publications
- Annotation tools
- Yes
RecognisedDocumentedFree planPlatforms - Free plan AndroidiOSWeb
- Free plan
- Yes
- Supported platforms
- web, iOS, Android
- Supported formats
- EPUB, FB2, MOBI, PDF, DOC, DOCX, TXT, PRC, RTF, ODT, HTML, AZW, AZW3, CBR, CBZ, ZIP, RAR
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Free plan AndroidiOSmacOS
- Free plan
- Yes
- Supported platforms
- iOS, Android, macOS
- Supported formats
- EPUB, PDF, MOBI, AZW3, FB2, DOC, DOCX, RTF, ODT, DJVU, TXT, CHM, CBZ, CBR
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Free plan AndroidiOS
- Free plan
- Yes
- Supported platforms
- iOS, Android
- Supported formats
- PDF (Adobe DRM), EPUB (Adobe DRM), DjVu, FB2, FB2.zip, MOBI, DOCX, RTF, TXT, CHM, HTML (Basic), CBZ, CBR, CBT
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Free plan Android
- Free plan
- Yes
- Supported platforms
- Android
- Supported formats
- EPUB, PDF, FB2, other book formats
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Free trial AndroidiOSWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms$7.99/mofirst paid tier About Kobo BooksVisit site - WindowsmacOSLinuxiOSAndroid
- Free plan
- Yes
- Supported platforms
- Windows, macOS, Linux, iOS, Android
- Supported formats
- EPUB, PDF
- Annotation tools
- Yes
RecognisedDocumentedFree planPlatforms - WebWindowsmacOSiOSAndroid
- Free plan
- No
- Supported platforms
- iOS, Android, Windows, macOS
- Supported formats
- EPUB2, EPUB3, PDF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - WebWindowsmacOSLinux
- Free plan
- Yes
- Supported platforms
- web, Windows, macOS, Linux, self-hosted
- Supported formats
- TXT, PDF, EPUB, KEPUB, CBZ, CBT, CBR, DJVU, DJV
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - AndroidLinuxmacOS
- Free plan
- Yes
- Supported platforms
- Kindle, Kobo, PocketBook, Android, desktop Linux; macOS emulator
- Supported formats
- EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI, ZIP
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - WebAndroid
- Free plan
- Yes
- Supported platforms
- Android, web
- Supported formats
- PDF, EPUB, EPUB3, MOBI, DjVu, FB2, FB2.ZIP, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR, DOC, DOCX, ODT, XPS, TIFF, PDB, MHT
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - iOSmacOS
- Free plan
- Yes
- Supported platforms
- iOS, macOS
- Supported formats
- EPUB, MOBI, Kindle AZW/AZW3/KF8, CBZ, CBR, PDF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - iOSmacOS
- Free plan
- Yes
- Supported platforms
- iOS, macOS
- Supported formats
- EPUB (DRM-free), PDF (DRM-free), MOBI, AZW3, DjVu, FB2, FB2.ZIP, CBR, CBZ, CBT, MP3, M4A, M4B, TXT, RTF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - WindowsmacOSLinuxiOSAndroid
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Linux
- Free plan
- Yes
- Supported platforms
- linux
- Supported formats
- EPUB, Mobipocket, Kindle, FB2, CBZ, PDF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Android
- Free plan
- Yes
- Supported platforms
- Android
- Supported formats
- EPUB, PDF, DJVU, AZW3, MOBI, FB2, PRC, CHM, CBZ, CBR, UMD, DOCX, ODT, RTF, TXT, HTML, MHT/MHTML, MD (MarkDown), WEBP, RAR, ZIP, OPDS
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - WebiOSAndroid
- Free plan
- Yes
- Paid from
- 1.99 /mo
RecognisedDocumentedFree planPlatforms - Linux
- Free plan
- Yes
- Supported platforms
- linux
- Supported formats
- EPUB, PDF, MOBI, FB2, CBR, CBZ
- Annotation tools
- Yes
RecognisedDocumentedFree planPlatforms - Linux
- Free plan
- Yes
- Supported platforms
- Linux
- Supported formats
- CBZ, CBR, CBT, EPUB, PDF
RecognisedDocumentedFree planPlatforms - WindowsmacOS
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - iOS
- Free plan
- No
- Supported platforms
- iOS
- Supported formats
- EPUB, PDF
- Annotation tools
- Yes
- Reading sync
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Supported platforms
- web, self_hosted
- Supported formats
- EPUB, PDF, MOBI, AZW3, TXT
RecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which ebook reader software is ranked first on Everything Xiaomi?
Readest is ranked #1 of 27 with a score of 7.6. Libby is second and Adobe Digital Editions third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Readest has the lowest first paid tier we found: $4.99/mo.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.