File Extension Search

.img File Extension

Developer: Apple
File type: Macintosh Disk Image File
You're here because you have a file that has a file extension ending in .img. Files with the file extension .img can only be launched by certain applications. It's possible that .img files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .img file?

A Macintosh disk image file is a mirror copy of the Mac file system and can be mounted on a computer as a virtual hard disk drive. These Macintosh disk image files can also be used as virtual optical drives like DVD and CD drives. Mac OS 9 and older versions are integrated with support for using and mounting these Macintosh disk image files. These Macintosh disk image files are saved in the IMG format and are affixed with the .img extension. These IMG files are also stored with encoding specifications and implemented with file compression standards proprietary to Apple. Similar to ISO files, an IMG file can sometimes be changed to an ISO file by simply replacing the .img extension with the .iso extension, and doing this will allow a user to use the IMG file with an image mounting program developed for Microsoft Windows-based systems. Mac OS X is also implemented with support for opening and using these IMG files, though newer disk image file formats are now widely used by associated applications programmed for Mac platforms.

how to open a .img file?

Launch a .img file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .img file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .img files aren't yet associated with it. In this case, when you try to open a .img file, you can tell Windows which application is the correct one for that file. From then on, opening a  .img file will open the correct application. Click here to fix .img file association errors

applications that open a .img file

Apple Disk Utility

Apple Disk Utility

Apple Disk Utility is developed for performing tasks of disks on Mac computers, specifically Mac OS X. This means that this disk utility software is designed by Apply for their very own computers. There are different tasks and functions this tool provides which can be accessed from the command line of Mac OS X with the hdiutil commands and diskutil commands. Among the tasks of this disk utility product are the following: creating, conversing, compressing and encrypting of disk images from file formats supported to .A href="/file-extensions/dmg">.dmg or for .A href="/file-extensions/cdr">.cdr (CD and DVD) images; mounting or unmounting and ejecting of all variety of disks; enabling or disabling of journaling; verifying permissions and disk’s integrity with repair tool; as well as erasing, formatting, cloning and partitioning of disks. Other than these tasks, Disk Utility also has functions to check the S.M.A.R.T status of a hard disk drive, burn disk images to CDs and DVDs (HFS+ format type), erase CDs and DVDs that are rewritable, restore volumes from ASR images, merge, create, destroy or repair sets of RAID, and secure free space or disk that is deleted.

a word of warning

Be careful not to rename the extension on .img files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .img. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.
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