📱 MOBI file won't open on iPhone
iOS has no built-in support for .mobi files, so tapping one on your iPhone just results in an error or nothing happening at all. The fastest fix is to convert the .mobi to a PDF, which every iPhone can open natively in Safari, Mail, Files, and Books.
Drop your .mobi files here
or choose files from your device
Free · Unlimited · 50 MB each · No account needed
Converting…
About .mobi to PDF conversion
Can I read a MOBI file on iPhone without installing anything?
Not directly. Apple's built-in apps don't recognize the .mobi format. Your options are to convert the file to PDF or EPUB first, or install a third-party app like Kindle (which supports MOBI) or Books (which supports EPUB). Converting to PDF means you can open it immediately in any app without extra installs.
How do I convert a MOBI file to PDF so my iPhone can open it?
Upload your .mobi file to OpenAny.io, select PDF as the output format, and download the converted file. The file is deleted from our servers within 60 seconds. Once you have the PDF, AirDrop it to your iPhone, email it to yourself, or save it to iCloud Drive and open it in Files or Books.
Will converting MOBI to PDF mess up the formatting or lose chapters?
Basic formatting like headings, paragraphs, and images transfers well. However, PDF is a fixed-layout format, so the reflowable text you get in an e-reader app won't be there — font size adjustments and night mode won't work the way they do in a dedicated e-reader. If you want to keep those reading features, consider converting to EPUB instead, which the iPhone's built-in Books app supports natively.