IMG File Extension

IMG file icon

Macintosh Disk Image

What is a IMG file?

The IMG file extension is linked to Macintosh Disk Image and belongs to the Disk Image Files category, which includes 133 files.

The Macintosh Disk Image (IMG) was developed by Apple, which created file format and 72 programs to work with them.

IMG files are compatible with various operating systems, including Windows. To open a IMG file, you can choose from 2 programs such as Floppy Image and All Image.

Programs that support IMG files

How to open a IMG file?

If you cannot open a IMG file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.

Floppy Image and All Image are recognized as the most popular software solutions for dealing with IMG files. To set up the newest version of Floppy Image on your device, simply go to the official Towodo website. There you can download the edition compatible with every operating system.

Once installed, Floppy Image will be set as the default program, and IMG files will open automatically.

Set Floppy Image to open IMG by default

Setting a default program by file type in Windows

  1. Right click on your IMG file, then select "Open with" and click "Choose another application";
  2. Find the Floppy Image application in the pop-up window and select it as your preferred program;
  3. Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening IMG files.

Change default apps on Mac

  1. Right-click or use Control + Left-click on the desired IMG file to access the file’s context menu;
  2. Select "Open in application" and click "Other";
  3. At the bottom of the window, find the "Enable" menu, where "Recommended Programs" is already selected by default;
  4. Within this menu, select "All Programs" and then locate Floppy Image. Check the box next to "Always open in app" to set it as the default program.

How to edit a IMG file?

Editing IMG files requires installing professional software that lets you open and edit disk image files. Online editors have more limitations compared to dedicated Macintosh Disk Image programs.

Best IMG editors in 2026

Considering the mentioned criteria, we have compiled a list of IMG editors that may suit your needs.

IMG Editor SoftwareDeveloperPlatformsOverall Rating
All ImageTowodoWindows4.9 out of 5 (37 reviews)
Floppy ImageTowodoWindows4.8 out of 5 (37 reviews)

Convert to and from IMG

If you struggle with a IMG file, consider converting it to alternative formats such as JPG, PNG, TIF, STEP, ISO or other similar file types.

Converting a IMG file may not fully retain all functionality, but it is generally possible to return it to the original format.

Convert IMG to other file formats

Converting Files to IMG Format

Easy IMG Troubleshooting

Certain problems with IMG files can be conveniently fixed with small software tweaks. Here are some helpful tips to address them.

What are the steps to repair a damaged IMG file?

Open the corrupted IMG file in a recovery program and select the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged disk image files.

How do I know if my IMG file is corrupted?

Corrupted IMG disk image files may show the following signs:

  • Attempts to open the file result in errors or failed results;
  • Editing the archive in Floppy Image is accompanied by slow performance or delays;
  • The file causes Floppy Image or other programs to hang or crash during operation;
  • Unexplained increase in IMG file size;
  • Error messages appear while working with the file;

What are the reasons behind Floppy Image crash?

The likely cause of Floppy Image crashing is lack of software updates. Install the latest updates available for Towodo products.

Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.