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Top 5 PDF to MOBI Converter Online for Free [2024]

Melissa Lee updated on Mar 19, 2024 | Home > PDF Knowledge Center | min read

Have you ever gotten a file that is in MOBI, EPUB, or other suchlike formats? All of those formats are widely used to create and publish e-books, and they are compatible with specific e-book reading apps or devices, such as Kindle. As a file format specially designed for eReader and mobile devices, MOBI is lightweight in size so that the e-books in this format won't occupy a large amount of storage space. Moreover, it also supports more beneficial features, like adding bookmarks, leaving notes, etc. 

Because of the virtues of MOBI files mentioned above, it's advisable to convert a PDF to MOBI for making it readable on eReader. If you want to do the conversion but cannot find an available tool, this post is what you need. The best 5 PDF to MOBI converters will be listed in this post, and each of them will help you a lot.

Top 5 PDF to MOBI Converter Online:

Editor's Choice: >> Best Free Online PDF Converter

1. CloudConvert - PDF to MOBI Converter 

The first online PDF to MOBI converter you should know is CloudConvert. The interface of this tool is intuitive and ad-free so that you can effortlessly find the options to upload the source PDF file and do the conversion. It even offers you a comparison table to inform you of the differences between input and output formats. With its help, you can conveniently choose the output file format per your needs.

One of the most notable features of this online converter is that it supports many ways to upload the source files. For instance, you can choose the file directly from your PC, the cloud storage, or merely a URL. After uploading the PDF file, you only need to set MOBI as the output format and start converting the document.

cloudconvert pdf to mobi


  • Support multiple ways to upload source files
  • Support various formats, like e-book, documents, and images
  • High-speed conversion


  • There is a limit of times of the conversion
  • 100 MB maximum file size
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2. ZamZar - PDF to MOBI 

As an all-in-one online converter, Zamzar also offers you a PDF to MOBI converting tool to help you turn a PDF into an e-book. Unlike many other online tools, Zamzar gives you a tutorial that will guide you through converting PDF to MOBI step by step, and it's beneficial for beginners who are not familiar with file conversion.

Besides e-book formats, ZamZar converter also supports many other formats, including image, web, CAD, etc. To some degree, it can meet all your needs in converting documents and pictures. The conversion process will last long if the PDF file size is huge. You can enter your email address in this situation, and this online tool will notify you to download the converted MOBI via a URL.

zamzar pdf to mobi


  • Support upload and download files via a URL
  • Offer tutorial to teach users how to convert PDF to MOBI
  • A desktop converting app is available


  • Files will be stored on its server for 24 hours
  • The conversion will fail if the PDF is protected by a password
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3. Online-Convert - MOBI Converter 

Suppose you want to find a powerful online PDF to MOBI converter that supports editing the files while converting, and in that case, Online-Convert is what you can never miss. For instance, after uploading the PDF to its server, this online converter will give you many options to adjust the settings. It allows you to adjust the font size, change the input encoding, add a border, as well as select a target e-book reader. In other words, you can make the output MOBI file perfect for your Kindle model.

After conversion, this online converter both allows you to upload the converted file to the cloud or download it to your PC. It even offers a feature for batch converting, i.e., you can download several output files as a ZIP file.



  • Detailed settings for making the output suitable for your needs
  • Support downloading MOBI to your device as a ZIP file
  • Drag & drop or enter a URL to upload the PDF


  • The price is relatively high
  • Hard to use for beginners

4. Convertio - PDF to MOBI Converter 

Convertio also offers you an online PDF to MOBI converter that enables you to get an e-book file from the PDF document. There is a file size limit of this online tool so that you can only upload 100MB files at most. For users who have a bulk of PDF to process, this online converter perhaps fails to meet their requirements. 

But it's conducive that this online tool allows you to manually delete the files you uploaded to its server. You don't have to worry about privacy issues, as you can remove the essential files from the server whenever you want. 

convertio pdf to mobi


  • Support removing files from server after conversion
  • Support adjust the settings when converting audio or videos
  • Support more than 300 file formats


  • 100MB file size limit
  • The conversion speed is slow

5. AnyConv - PDF to MOBI Converter 

Users who have a lot of PDF documents that need to be converted to MOBI may find there are not so many online converters that support batch conversion. Luckily, AnyConv is available for converting several PDF files to MOBI at once. The steps to add multiple files to this converter are troublesome, and you need to select all the source PDFs when navigating the folder. However, you can download the converted MOBI file separately, and this feature is useful for those who want to save the output file to different folders.

anyconv pdf to mobi


  • Support batch conversion
  • Compatible with Windows, Mac, iPhone, and Android
  • The files will be deleted 1 hour later


  • Support fewer file formats than other converters
  • No settings adjusting options

Editor's Choice: Best Free Online PDF Converter 

All the above-mentioned online converters support a significant number of file formats, and you can turn your PDF documents into images, e-books, or HTML. Sometimes you may feel it's inconvenient to find the most basic PDF converting tools, such as converting PDF to Word, Excel, PPT, etc. Don't worry. A user-friendly PDF converter, EaseUS PDF Online, is available.

This intuitive PDF online converter supports the essential document and image formats, including DOCX, PPTX, and JPG. EaseUS PDF Online ensures that the formatting and layout of your PDF will never be destroyed during the conversion. 

If you want to get Word, Excel, PowerPoint, or JPG from the PDF file, this online converter is the best choice for you.

Besides the online tool, EaseUS also gives you a desktop PDF converting and editing app. EaseUS PDF Editor, the robust Windows software, allows you to annotate PDF files before the conversion freely. For example, you can highlight the PDF text, leave comments, or draw lines on the PDF pages with simple clicks.

EaseUS PDF Editor

  • Best PDF converter for beginners
  • Add or remove PDF text, images, bookmarks, or watermark
  • Make scanned PDF editable with the OCR feature
  • Encrypt the PDF file by adding a password

About the Author

author Melissa Lee

Melissa Lee

Melissa is a sophisticated editor for EaseUS in tech blog writing. She is proficient in writing articles related to screen recording, voice changing, and PDF file editing. She also wrote blogs about data recovery, disk partitioning, and data backup, etc.

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