MOBI Converter
Convert files to and from MOBI — free, online, no signup.
up to 50 files at once
auto-delete in 24h · no signup · no watermark
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MOBI is the ebook format created by French company Mobipocket in 2000 and acquired by Amazon in 2005, where it became the foundation of early Kindle books. It stores reflowable text in a PalmDB container. Amazon retired MOBI support for Send to Kindle in 2022 in favor of EPUB, so today MOBI mostly appears in older ebook collections.
| Full name | Mobipocket ebook |
| Developer | Mobipocket / Amazon |
| Released | 2000 |
| Type | Ebook format |
| Typical use | older Kindle devices and legacy ebook libraries |
| MIME | application/x-mobipocket-ebook |
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Frequently asked questions
How do I open a MOBI file?
MOBI is the ebook format created by French company Mobipocket in 2000 and acquired by Amazon in 2005, where it became the foundation of early Kindle books. It stores reflowable text in a PalmDB container If a device refuses to open it, the fastest fix is converting it to a more universal format with the converter above.
Is converting MOBI files free?
Yes — 10 conversions a day with files up to 200 MB, free, with no signup and no watermarks.