Q: "I have some eBooks kept in epub format, and recently I prefer Kindle for reading books. I'd like to transfer my epub files to Kindle for storage and reading. Does Kindle support the .epub file format? I failed anyway. Are there any useful ways to upload my epub files to Kindle?"

As you know, Amazon has offered Kindle users free cloud storage for their eBooks and you cannot only use Kindle to purchase books from its vast library but also keep the best of your collections to Kindle device. Thus, Kindle has to quite an extent achieved a dominant position in e-reader market. Actually, Kindle supports so many formats including Microsoft Word (.doc, .docx), HTML, TXT, Mobi, PDF, RTF, unzipped epub files and more to be convert well to Kindle. That means free epub files can be definitely transferred to Kindle. Since you failed to upload epub file to Kindle, the reason might be that the zipped files are DRM protected. Don’t be frustrated, anyway. Here comes the best way to upload an epub file to Kindle.

Part 1: Solution 1 to upload a file to Kindle devices by USB

Definitely, if you have downloaded an eBook file in free epub format on your computer, it is not difficult for you to transfer epub file to Kindle when you have a micro-USB cable for Kindle. This might be the simplest and best way to upload an epub file to Kindle. In this way via USB, you can transfer documents from your computer to your compatible Fire tablet or Kindle e-reader, 3rd generation or newer. And the simple guide here will probably give you a hand.

Step 1: Connect your Kindle device to your computer with a USB cable. After the automatic detection, your device will appear in the same location on your computer that external USB drives appear.

Brief Introduction to Kindle Devices

Note: For Windows, your device will appear in the Computer or My Computer folder. And for Mac, your device will appear on the desktop.

Step 2: Open the Kindle device folder, and then open the Documents or Internal Documents folder.

Brief Introduction to Kindle Devices

Step 3: Locate the file you want to transfer to Kindle on your computer, and then drag and drop the file into the appropriate file folder.

Brief Introduction to Kindle Devices

Step 4: When the file transfer completes, you can safely disconnect your device from your computer. And the transferred file will appear on the Home screen of your Kindle e-reader. Just feel free to read it.

Part 2: Solution 2 to upload a file to Kindle by using "Send to Kindle" app

Except for using USB to transfer epub file to Kindle, you can also upload a file to Kindle by using Send to Kindle app, which is also one of the most commonly-used ways that are proved feasible. As a matter of fact, Send to Kindle app is developed by Amazon to share documents to all of your Kindle devices with a drag and drop affair. With this app, you are able to transfer your files from your PC to your Kindle devices as well as free reading apps on iPhone, iPad, iPod touch and Android phone and tablet.

Send to Kindle

And this app would be one of the quickest and best ways to upload an epub file to Kindle. With the help of the app, you can quickly send the target files to your Kindle without connecting cables. Now you can easily achieve the goal by following the simple guide:

1. Install it on your PC Windows Explorer. And then you'll find a "Send to Kindle" option in your right-click menu.

Send to Kindle

2. Send to Kindle for PC also installs a virtual printer. In this way, you can click on "Print" and then select "Send to Kindle" and your document will appear on your Kindle as well.

Send to Kindle

3. Besides, you can also drag and drop one or more of your files onto the "Send to Kindle" app. and you will be able to read you eBook files on Kindle in a few minutes..

Send to Kindle

Note: You need a PC with a 500MHz Intel or AMD processor or faster and at least 128MB of RAM. The system in required including Windows XP or Windows Vista or Windows 7 or Windows 8.