The NIB file extension is associated with the Disk image file format used by emulators of Apple II computers.

There are 2 other file types using
the NIB file extension!

nib icon.nib - Interface Builder user interface resources

nib icon.nib - Adobe AIR file

Detailed description

Software that works with nib file extension

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NIB file extension - Disk image file

What is nib file? How to open nib files?

File type specification:

Disk image (ISO) binary file type icon Disk image (ISO) binary file type

The NIB file extension is related to a special disk image used in old Apple computers. A "disk image" is typically a file containing every data byte on a diskette,i.e. Catalog tracks, files, DOS (if present) etc.. One kind of disk image, NIB, tries to preserve all disk information (e.g. sector headers, sync bytes, etc.).

Apple II emulators running on a PC, Mac, etc. treat disk image files like diskettes. Disk image files are also a handy way to archive Apple II disks on hard disk and to maintain wares on ftp and other download sites.

Some copy protected diskettes can be converted to another kind of disk image called "NIB". Saltine's Super Transcopy (SST) incorporates bit copy routines to attempt to produce a nibblized disk image of a 5.25" diskette.

On your Apple II, SST reads the disk bytes from half a disk and stores that data on a whole normal disk. Then it does the same for the second half. These two disks can be converted to .dsk disk images and moved to a PC or Mac. There, the .dsk images are merged into a NIB image using SST running on an emulator.

If successful, you have a .nib file which can be used like a diskette on popular Apple II emulators. (For one or two older emulators, .nib files are the only useable images.).

The standard length of a .nib file is 232,960 bytes-- much larger than a DSK. However, since .nib files include sector address header and other non-data 'embedded' diskette information, they can be used to image many protected disks.

Naturally, a .nib file preserves DOS 3.3 volume numbering. This allows programs which use volume numbers to identify their disks to run on emulators. Many disks with no copy protection are in .nib form instead of .dsk because the game, etc. which uses the disks needs to check volume numbering.

Help how to open NIB files:

Use Apple2 Oasis to open *.nib disk image files.

How to convert file with extension NIB:

As far as we know, this .nib file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of software applications associated to the .nib file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux etc.) and possible program actions
that can be done with the file
: like open nib file, edit nib file, convert nib file, view nib file, play nib file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting nib files.

  • Open nib file
  • Others nib file

Software that open nib file - Disk image file

Click on the link to get more information about listed programs for open nib file action.

Microsoft Windows:

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