How to convert ePub to Mobi ebook format – for free

ePub and Mobi are located as likely the most used ebook formats on the web, and If you are needing to convert ePub to Mobi (whether it's because the Kindle supports the latter rather than the former and any other reason) then please read on. This article will present FIVE different ways to perform the conversion.

As you could possibly expect, ePub to Mobi conversions can be carried out using downloadable tools running on your desktop as well as online tools you could upload your ePub file to (then download the converted Mobi version).  The tools presented on this page are all 100% free you need to include: Kindle Previewer (Windows, Mac), Convert EPUB to MOBI (Windows),  Calibre (Windows, Mac, Linux), 2Epub (online, browser based), and Free File Converter (online, browser based).

Here will be the 5 tools. You can use any one of them to complete the conversion.

1. Kindle Previewer (Windows, Mac)

This software from Amazon was created to give you a preview on the desktop of how any particular ebook file will likely be displayed about the Kindle, useful for when you are converting ebook formats and want a preview from the result. However, Kindle Previewer also can perform ePub to Mobi conversions quickly. It is designed for both Windows and Mac, which enable it to be downloaded and installed without requiring an Amazon account.

Here’s a step-by-step:

Step 1: download it here and install. You will need to accept the relation to use.

Step 2: run Kindle Previewer then drag and drop your ePub file on the interface.

You will see a notification that is compiling the novel (Screenshot about the left, below).

Step 3: Once the process is completed (and prior to actually previewing the book), you can access the converted Mobi file.

Click about the blue link in ‘The Output File Has been generated here’ notification in order to access your Mobi file (see the red arrow inside screenshot below, right). You may need to copy the Mobi file for the desktop and rename it, as Kindle Previewer adds to start dating ? string on the converted file name.

Kindle Previewer Screenshot1Kindle Previewer Screenshot2

2. Epub to Mobi (Windows)

A freeware that can convert ePub to Mobi in batch. It can process ebook files in batch and uses exactly the same ‘engine’ that Kindle Previewer uses (Kindlegen from Amazon). However, you will need to download this file in the Amazon site separately and move it into the appropriate folder in your PC.

Step 1: download Epub to Mobi here and do the installation.

Step 2: download Kindlegen here, and extract it the archive in a folder with your favorite uzip program.

Step 3: copy ‘kindlegen.exe’ through the extraction folder and paste it within the ‘Epub to Mobi’ installation folder (this may typically be ‘C:\Program Files\EPUB TO MOBI\’ or on 64 bit PCs it will probably be ‘C:\Program Files (x86)\EPUB TO MOBI\’). If unsure, wait for this step and the program will explain once you make an effort to start a conversion (see below).

Note that you will want administrative privileges on Windows so that you can do this.

ePub to Mobi Screenshot2

Step 4: run Epub to Mobi. Add some ePub files using the file menu  ‘File/Add Files’ or via Ctrl+O.

ePub to Mobi Screenshot

Step 5: run the conversion from the file menu  ‘File/Convert’ or via Ctrl+E.  Choose the output folder and press ‘OK’.

That’s it, you’re done.

3. Calibre (Windows, Mac, Linux)

Calibre is the world’s foremost open source e-book library management application. It can perform a myriad of ebook format conversion operations, including ePub to Mobi.

Note that Calibre is a very ambitious program, and was created to manage your whole ebook collection instead of simply convert personal files (or files).

Step 1: download Calibre here and set it up. Note that it is just a 44 meg download, understanding that there is a portable version if you'd prefer.

Step 2: run Calibre, then drag and drop your ePub file onto the interface.

Note that whenever you do this, Calibre immediately produces a copy of your file in it’s own ‘Library’ folder.

Step 3: right click on it that appears inside the list, then select ‘Convert books’ and ‘Convert Individually’

Calibre Screenshot1

Step 4: select ‘EPUB’ for input format and ‘MOBI’ for output format using the dropdowns. (They may both be selected automatically, see screenshot below).

Next, click ‘OK’

Calibre Screenshot2

Step 5: once the conversion is finished, it is possible to grab the MOBI file from your ‘Calibre Library’ folder. You can move it to wherever you would like it.

An easy way to discover the file is always to simply right click about the ebook entry in the Calibre interface and select ‘Open containing folder’.

Calibra Screenshot3

That’s it, you’re done.

4. 2EPUB (online service, browser based)

Despite the name, a reverse phone lookup can convert documents both to and from a range of formats, including ePub to Mobi. Here’s the step-by-step.

Step 1: check out using any browser.

Step 2: click around the ‘browse’ button (inside middle in the page), then select your file. You can select multiple files if you want. Click the ‘Upload Files’ link to start uploading.

2Epub Screenshot1

Note that you it is possible to upload at most 25 megs for the single file or all of your files combined.

Step 3: once uploaded, you can enter ‘Title’ and ‘Author’ data and even change the text encoding (if uncertain, leave it as is on ‘auto’). Click for the ‘Convert Files to EPUB’ to begin the conversion.

2Epub Screenshot2

Step 4: Finally, right click on your book and select ‘save as’ to save it, or perhaps click on the ‘’ hyperlink to download all of the converted ebooks at once.

2Epub Screenshot3

That’s it, you’re done.

5. Free File Converter (online service, browser based)

Another free document conversion service that supports lots of different formats. This one is just like ‘2Epub’ above, and can allow you to upload a document the size of 300 megs.

Step 1: go on the Free File Converter service using any browser.

Step 2: click around the ‘Convert File’ tab, then press the ‘Choose File’ button and upload your file. Next, select ‘mobi’ inside the output format dropdown and click on the ‘Convert’ button.

Free File Converter Screenshot1

Step 3: following a brief wait, you can download the converted file from the links provided (including a zipped archive for faster download).

Free File Converter Screenshot2

That’s it, you’re done.

More options:

Although we stopped at five in the following paragraphs (because sometimes less is a lot more), a few couple more free options which you could want to examine: Hamster Free eBook Converter for Windows (which uses the Calibre engine, and is a 48 meg download), and Convert.Files (another online conversion service).

Any thoughts, ideas, comments? Please share them within the comments section.

Has been reviewing software since 2006 when he started

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