Popular formats


Opening ithmb files

Have a problem opening a .ithmb file? We collect information about file formats and can explain what ithmb files are. Additionally we recommend software suitable for opening or converting such files.

What is the .ITHMB file type?

The .ithmb filename extension serves to distinguish the ITHMB ('iThumbnail') file format and the respective file type. ITHMB is a proprietary raster graphic image format developed by Apple, Inc. for its iOS-based mobile devices (iPod, iPhone and iPad).

An .ithmb file basically contains a series of thumbnails in several pixel dimensions to suit different preview modes and the device's screen size. ITHMB files are typically quite large, taking up a lot of storage, but they are faster and easier processed by the mobile CPU, which helps saving battery charge.

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Software to open or convert ITHMB files

You can open ithmb files with the following programs: