Click the "Select File" button above, and choose your IMG3 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert IMG3 to another file type
To convert IMG3 firmware images to another format, you need Apple iTunes or other System software.
Convert a file to IMG3
To convert other file formats to the "Firmware Image Container" file type, you need software like Apple iTunes or a similar tool.
About IMG3 files
The .img3 file is an Apple firmware image container primarily used in older 32-bit iOS devices. It stores essential boot components, such as the kernel, recovery mode utilities, and iBoot images. These files are typically bundled inside an IPSW firmware update file, which Apple iTunes uses to restore or update iPhones and iPads. This format presents severe limitations for average users. It is a strictly closed, proprietary format heavily encrypted by Apple. You cannot double-click an .img3 file to view its contents, and standard archive utilities like WinRAR or 7-Zip cannot extract it. Because it is tied to Apple's secure boot chain, opening the file requires device-specific AES keys (IV and Key) to decrypt the underlying payload. Users typically want to convert or extract .img3 files to access the raw decrypted BIN payload or extract the boot logo as a PNG image. However, standard online converters completely fail to process these files because they lack the necessary decryption keys and firmware structure knowledge. This file format is exceptionally difficult to open or convert. Often, only specialized developer tools like xpwntool can properly read or export the data. Despite these restrictions, you can drag and drop your file into convert.guru to identify the format, view its internal header tags (such as TYPE, DATA, and KBAG), and inspect the file structure. If our analysis detects an unencrypted or supported embedded format, viewing or extraction may still be possible.
Convert.Guru analyzes your IMG3 file, detects the exact format, and lets you read the text inside.
If you want to convert IMG3 file to SYS, DLL, EXE, DRV, VXD, 386, COM, BAT, CMD, SCR, PIF or LNK, you can use Apple iTunes or similar software from the "Firmware Storage" category. In the File menu, look for Save As… or Export….
To convert MSI, EXE, REG, MST, LNK, CAB, CAT, DRV, INF, SYS, MSU or DLL files to IMG3, try Apple iTunes or another comparable tool in the "Firmware Storage" category.
The IMG3 Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our IMG3 converter.