IPSW File Extension

IPSW file icon

IPod And IPhone Software Update Format

What is a IPSW file?

IPod And IPhone Software Update Format, identified by the IPSW extension, is a Smartphone Files type and includes 69 files.

With the creation of the IPod And IPhone Software Update Format (IPSW), Apple introduced file format along with 72 programs built for their use.

IPSW files are compatible with various operating systems, including Mac OS and Windows as well as mobile platforms such as Apple iOS. You can edit a IPSW file using one of 6 programs, for example PwnageTool, redsn0w and iTunes.

How to open a IPSW file?

The most common reason why a IPSW file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.

PwnageTool, redsn0w and iTunes are recognized as the most popular software solutions for dealing with IPSW files. To install the most up-to-date edition of PwnageTool, visit the official iPhone Dev Team website. You can download the build that works across all operating systems.

After installation, your operating system should automatically open IPSW files with PwnageTool.

Set PwnageTool as the default IPSW handler

Setting a default program by file type in Windows

  1. Start by right-clicking on your IPSW file and selecting the "Open With" option. From there, click "Choose another app" to continue;
  2. In the pop-up window, find and select the PwnageTool application from the available options;
  3. Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening IPSW files.

Choose an app to open a file on Mac

  1. Right click or use Control + left click on the desired IPSW file to launch the file options menu;
  2. Select "Open in application" and click "Other";
  3. Next, at the bottom of the window, you will see the "Enable" menu, in which "Recommended Programs" is selected by default;
  4. In this menu, select "All Programs", then find PwnageTool and check the box next to "Always open in the application."

How to edit a IPSW file?

Editing IPSW files requires installing professional software that lets you open and edit smartphone files. Online editors have more limitations compared to dedicated IPod And IPhone Software Update Format programs.

List of Top IPSW editors 2026

Based on these criteria, we have prepared a list of available IPSW editors.

IPSW Editor SoftwareDeveloperPlatformsOverall Rating
PwnageTooliPhone Dev TeamMac OS4.9 out of 5 (39 reviews)
redsn0wiPhone Dev TeamMac OS4.5 out of 5 (37 reviews)

Effective solutions for IPSW file problems

There are some common issues with IPSW files that can be resolved easily by making minor adjustments to your software. Below, you’ll find these issues along with practical troubleshooting tips.

Are there any techniques or tools available to repair a damaged IPSW file?

Use iTunes, Apple iTunes or EaseUS MobiSaver to open the damaged IPSW file and select the "Repair" function from the menu. Wait for the recovery process to finish, as it will automatically repair damaged smartphone files.

What are the signs that my IPSW file is damaged?

Corrupted IPSW smartphone files may show the following signs:

  • Editing the archive in PwnageTool is accompanied by slow performance or delays;
  • Opening or processing the file in PwnageTool or other programs causes instability or crashes in the program;
  • The file shows errors when trying to open it or does not open completely;
  • Unexpected expansion of the total size of the IPSW file;
  • Working with the file triggers the display of error messages;

What factors contribute to PwnageTool crash?

PwnageTool crashes can be attributed to outdated software. Make sure you have installed the latest updates for iPhone Dev Team products.

Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.