HotConvertDrop your files here
or click to select
Why convert FAX to MOBI?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the FAX format
FAX — Group 3/4 Fax Image
FAX is a generic extension used for raw CCITT Group 3 or Group 4 fax image data files. These files contain compressed monochrome page scans as transmitted by fax machines, and are typically converted to TIFF or PDF for archival and viewing.
Common uses
- Fax document archiving and recovery
- Converting raw fax streams to viewable formats
- Legal and business fax record keeping
- Processing fax server received files
About the MOBI format
MOBI — Mobipocket eBook
MOBI is the ebook format developed by Mobipocket, which Amazon acquired to form the basis of Kindle formats. While largely superseded by Amazon's KFX and AZW3 formats on modern Kindles, MOBI files remain widely distributed and are supported by older Kindle devices.
Common uses
- Kindle-compatible ebook distribution
- Reading ebooks on older Amazon Kindle devices
- Converting ebooks for Kindle compatibility
- Self-publishing ebook workflows
Related conversions
Other conversions available for FAX and MOBI files
Frequently asked questions
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.