MOBI FORMAT
MOBI Converters
Convert MOBI ebooks for Kindle devices or to universal formats like EPUB.
About MOBI
MOBI (Mobipocket) is an ebook format originally developed by Mobipocket SA, later acquired by Amazon in 2005. MOBI files use the .mobi extension and are based on the Open eBook standard with proprietary extensions for DRM and advanced formatting.
Learn more: MOBI on MobileRead Wiki
MOBI is widely compatible with all generations of Kindle devices and Kindle apps, making it ideal for users with older Kindles. While Amazon has transitioned to newer formats like AZW3 (KF8), MOBI remains the most broadly compatible format for the Kindle ecosystem.
Quick Facts
- Extension
- .mobi
- Developed By
- Mobipocket/Amazon
- Year Introduced
- 2000
- Format Type
- Kindle ebook
- DRM
- Optional
- Features
- Basic formatting
- Successor
- AZW3 (KF8)
- Platform Support
- All Kindle devices
Convert from MOBI (1 tools)
Convert to MOBI (1 tools)
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MOBI Guides & Articles
Answers at a Glance
Quick answers to common questions.
- Are my files secure?
- How long do you keep my files?
- What metadata do you keep?
- What happens after I drop a file?
- Why are conversions so fast?
- How do you measure performance?
- What are the exact limits for each plan?
- Can I process files in bulk?
- Why did my file fail to convert?
- Do you use my files to train AI?