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Welcome to the File Converter

Upload your file to start converting. Choose a file from your device or use a remote file link.

${shortenFileName(item.file_name)} ${formatBytes(item.file_size)}
Output:
Add ${items.length} files

How to Convert Mobi to AZW4?

  1. Click the “Choose MOBI Files” button and select your MOBI file
  2. Click on the “Convert” button to start the conversion
  3. When the status changes to “Done”, click the "Download AZW4" button

Convert Any MOBI to AZW4

This tool supports converting many types of Mobi to AZW4. Convert EPUB, PDF, AZW, AZW3, FB2, HTMLZ, LRF, OEB, TXT AND RTF to AZW4.

Best Mobi Converter

Convert your Mobi with perfect quality, size, and compression. Plus, you can also batch convert Mobi using this tool.

Free & Secure

Our Mobi Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.

MOBI is an eBook format originally developed by Mobipocket and later acquired by Amazon, widely used on Kindle devices and apps. It supports text, images, hyperlinks, and other multimedia elements, making it suitable for creating high-quality eBook content. Compared to traditional formats like EPUB or PDF, MOBI offers better compatibility with Kindle devices and optimized layout, ensuring a consistent reading experience across different screen sizes. Additionally, MOBI files often include digital rights management (DRM) protection to prevent unauthorized copying and distribution. It is widely used in the publishing industry and personal creation, suitable for novels, textbooks, magazines, and various types of eBooks.

How to open and edit an MOBI file?

Recommended tools to open MOBI files: - Readers: [Amazon Kindle](https://www.amazon.com/kindle-dbs/fd/kcp), available for Kindle devices and Kindle apps, providing the best reading experience. - eBook conversion and management tool: [Calibre](https://calibre-ebook.com/) (cross-platform), which can convert MOBI files to other formats such as EPUB or PDF for reading on other devices or platforms. Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert an MOBI file to another format, many tools provide powerful conversion features, such as using Calibre for format conversion. Note that some DRM-protected MOBI files may not be directly opened on non-Kindle devices. For MOBI files containing sensitive information or protected by DRM, ensure you comply with copyright regulations and purchase and read eBooks through official channels.

AZW4 is an advanced eBook format developed by Amazon, specifically designed for Kindle devices and apps, widely used in Kindle 4 and later models. It typically includes higher levels of digital rights management (DRM) protection to ensure content security and copyright protection. Compared to traditional formats like AZW or MOBI, AZW4 offers more advanced features and a better reading experience, supporting complex layouts, multimedia elements, and interactive features. It is suitable for creating high-quality eBook content, especially for publications requiring strict copyright protection. It is widely used in the publishing industry and personal creation, suitable for novels, textbooks, magazines, and various types of eBooks.

How to open and edit an AZW4 file?

Recommended tools to open AZW4 files: - Readers: [Amazon Kindle](https://www.amazon.com/kindle-dbs/fd/kcp), available for Kindle devices and apps supporting the AZW4 format. Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert an AZW4 file to another format, many tools provide powerful conversion features, such as using [Calibre](https://calibre-ebook.com/) for format conversion. Note that some DRM-protected AZW4 files may not be directly opened on non-official channels. For AZW4 files containing sensitive information or protected by DRM, ensure you comply with copyright regulations and purchase and read eBooks through official channels. Steps are as follows: 1. Use a tool that supports encryption (such as Amazon Kindle or dedicated DRM unlocking tools). 2. Open the file and select 'File' > 'Save As' > 'Save as PDF'. 3. In the export settings, choose 'Security', set a password, and select encryption options.

Your Data, Our Priority

At AllConverter, we go beyond just converting files—we protect them. Our robust security framework ensures that your data is always safe, whether you're converting an image, video, or document. With advanced encryption, secure data centers, and vigilant monitoring, we've covered every aspect of your data's safety.

Learn more about our commitment to security

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