Those who are familiar with the concept of eBooks, they must be acknowledged with this eBook extension called epub. But the main thing here is that you need best epub reader to get access of these files. Otherwise they are just useless for you.
10 Best epub Reader for Windows/Mac/Android/iOS
So, for the modern people who loves to go through digital books, here are the collection of some of the best epub readers that you should definitely know about. They are compatible with multiple devices so am sure support would not be a big issue. To know more check out their details provided below.
1. Nook
Website: https://nook.barnesandnoble.com/
Available for multiple platforms and making the most convenient app for let the crazy bookworms read their favorite books digitally, Nook deserves all rights to be on the top of the list of best epub reader. It might not give you a real book reading kind of feel but surely can provide you access to many of the eBooks you were not able to read earlier.
Developed by Barnes and Noble, Nook is compatible to Windows 10 and 8.1 when it comes to PC operating system.
Nook has a vast collection of amazing books from around the world along with wonderful readability offered too. Interestingly, you can find numerous free to read books here too. You can also find them in multiple languages too.
Other things which comes handy with Nook app for Windows is accessing without signing in, filters, subscription offered, import ePub and PDF files, performance enhancement and many more. Nook is the best you can get as an ePub reader and am sure you would not want to miss out on it.
Compatible with: 
2. Kindle
Website: https://www.amazon.com/
How can one forget that Kindle is something which has completely changed the way of reading for millions of people across the globe? There is no doubt that it is the leading source for book reading in the form of devices and apps too supporting various eBook extensions making it one of the best ePub reader.
With the super smooth and amazingly organized interface of Kindle, you can get access to multiple books on just the tap of your fingers.
One of the most important of feature of Kindle for which it is used is the page flipping. It gives you feel like the real books and you can actually feel more involved in a book. Other features Kindle offers are customizable reading experience, audio books, instant previews, highlight and bookmarking and many more.
Kindle is by far the best free epub reader you can go for. This is so simple to buy and read books through Kindle and with its personalized touch, everything seems so real that you can actually connect with it.
Compatible with:
3. FBReader
Website: https://fbreader.org/
FBReader is a way larger and vast platform than you think. It not only supports ePub but other formats of eBooks too like fb2, mobi, plain text, HTML and others too. This clearly denotes that what I am talking about here is a really big package for your eBook compatibility problems.
And can you imagine that you are getting it all for absolutely free? Just download it for the desired platform and start accessing right away.
With over 20 million installs till date, FBReader is a really reliable and superbly functional platform for exploring all kinds of eBooks like romantic, thrilling, horror, sci-fi and many more. In fact, you can even discover free books from this platform too.
I think now you would not be having any doubts that why did I enlist it amongst the best ePub Reader. Other features of FBReader are books organization, online library management, online storage, syncing, easy access, simple platform and many more. Talking about Windows compatibility, it does not support Windows 10.
Compatible with: 
, Blackberry, Jolla/Saifish OS
4. Calibre
Website: https://calibre-ebook.com/
As they people claim, Calibre is the ultimate and top solution for all your eBook needs ever. Apart from making an excellent pick for best ePub Reader, Calibre is an app which is updated regularly so that users can get the best experience of reading books digitally.
Thankfully, being an open source program, Calibre is absolutely free to use and it’s working amazingly since 2006 and handling multiple tasks like organizing, displaying, editing and sharing eBooks like a pro.
It also provides the cross-platform facility under which you can access all the data and information from multiple platforms at the same time. Despite being free, Calibre has so much to offer to its users like multiple format support, edit books in your collection, download magazines, share library, backup and many more.
Calibre makes a perfect option for best windows ePub reader out there. Interestingly, with new features being added up every once in a while, Calibre is becoming smarter every day. You can export, import files and also use the auto-tagging feature for organizing your book collection on Calibre easily.
Compatible with:
5. Icecream eBook Reader
Website: https://icecreamapps.com/
Might sound weird from its name but Icecream eBook Reader is the most prominent and reliable source for reading eBooks belonging to various formats. Apart from being an excellent and best ePub reader, Icecream eBook Reader is a great Mobi, PDF, TXT and other format reader too.
This app has the ultimate solution to manage all your digital books in the form of a personalized library and it has even more to offer than it.
All the basic features of this app comes for free but you can always opt for upgraded features in the form of eBook Reader Pro which can be opted for $19.95 as a one-time fee. Features which are offered under this ePub reader are customizable reading experience, page count, library management, book search, simple interface and many more.
Apart from it, you get some amazingly impressive services too like you can select some text and then translate it to whichever language you want. Apart from it text highlighter, navigation scrollbar are the other promising features of this ePub reader.
The most important feature of this eBook reader is its display characteristics having multiple modes like fullscreen, night etc. giving the best experience of reading.
Compatible with:
6. Sumatra PDF
Website: http://www.sumatrapdfreader.org/
If you are thinking that Sumatra is just a PDF reader then you are taking it all wrong. Actually, Sumatra eBook Reader is way more than what it sounds like and offers multiple format support for its users, making it one of the best ePub reader too. From ePub, Mobi to XPS, CHM, Sumatra covers almost all types of formats.
Best part about this software/app is that it is completely free to use and despite that it is quite simple and powerful tool for all the readers.
Amongst all the things, they have kept a simple interface on top priority so that users do not get involved in unnecessary complexities. It also supports almost all Windows OS including Windows 10 too giving it a high functionality.
While being compared to other windows ePub reader, Sumatra lacks behind somewhere in terms of features offered but I think for users who just want a simple platform for eBook reading, Sumatra tops the chart. However, still there are some customization features available which you are surely going to like.
Compatible with:
7. Freda
Website: http://www.turnipsoft.co.uk/
Freda is an eBook reader from Turnipsoft Limited which serves as an amazing and surely best ePub reader for not only Windows but also for Android platform too. It support Windows 8 and Windows 10 along with relevant Windows phone OS too.
Freda is a free to use program for reading eBooks available in multiple formats like ePub, HTML, TXT, FB2 and others.
Freda offers wonderful customization options to its users including fonts and colors personalization too. It gives a very realistic feel of book reading to the users. Other features offered by Freda are like bookmarks, annotation, online catalogs integration etc.
Its syncing capabilities are also amazing and it offers connectivity with Calibre book library and even OneDrive and Dropbox too. Apart from it, there are even dyslexic friendly settings available too. You can also synchronize your reading experience over multiple devices too giving the most comfortable and simplest experience of reading.
Compatible with:
8. Adobe Digital Editions
Website: http://www.adobe.com/
Adobe is counted amongst the topmost software developer and here I am talking about its eBook reading software called Adobe Digital Editions. Undoubtedly, one of the best ePub reader you are ever going to get for Windows and other platforms and that too for free.
Apart from ePub, ADE support various other eBook formats too and not only about reading, has ADE taken care of managing and acquiring eBooks too.
There are numerous features and amazing stuff which comes along with this app. One thing which I absolutely loved was that it provides device syncing which means you can download book on one and read it from other device easily.
Other interesting features offered by Adobe Digital Editions are multi lingual platform, amazing accessibility, multiple format support, bookmarks, text highlighting and customization settings, books organizing, book borrowing from public libraries etc. Surely one of the best ePub reader for PC providing so many outstanding features.
Compatible with:
9. Bookviser
Website: http://bookviser.com/
An exclusive ePub Reader especially created for windows platform and entrusted by more than 4 million people, Bookviser is counted amongst the best ePub reader for sure. Interestingly, Bookviser is a free to use platform supporting various Windows OS.
This windows app is designed in such a way that no book lover can find it annoying or typical to use at all. With smart and latest technology used, I am sure you would love all the features of Bookviser.
Once you have selected your eBook then you have numerous options to personalize the experience of reading. You can adjust the size of fonts and customize other appearance settings too. Other features include brightness control, books pinning for direct and faster accessing, multiple eBook formats support etc.
Bookviser has even more things to offer like multiple classics for free, simple interface and easy navigation, text selection and sharing, book library organization etc. Bookviser is compatible for only Windows 10 and Windows 8, so make sure you keep up with the system requirements before using it.
Compatible with:
10. Legimi
Website: https://www.microsoft.com/
Legimi is the final choice for the ePub reader for Windows. It is compatible to Windows 8 and Windows 10 along with Windows phone too. The reason of listing down Legimi at the end of the list is because it is not free to use.
There are various plans with different reading limit but for a full access plan you would have to shell out about $947 per year but you get about $700 in the form of book credits which means you can buy eBooks worth of it from Legimi.
Being costlier than other plans also brings some exclusive perks too which are not available with other eBook reading services. These advantages are eBooks and audiobooks in all formats, offline reading, advantage points with coupon program, Kindle syncing and many more.
Apart from being one of the best ePub reader, Legimi supports other eBook formats too. Every subscription plan comes with a 7 days trial offer so that users can have time to examine all of its features carefully. Despite everything, I would recommend other programs moreover Legimi.
Compatible with:
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Conclusion
Apart from this eBook extension, there are plenty of others too. With eBook compatible devices like Kindle you can get them all at one place. But for those people who do not use directed devices, they surely needs an alternative in the form of best epub reader.
I hope you people are going to have a good time for finally being able to read your favorite eBooks. A good epub reader always helps you to do multiple tasks and I hope you must be done getting through their functionality in the segment given above.
