To convert other file formats to the "Game Image Library Archive" file type, you need software like Heroes of Might and Magic III or a similar tool.
About ILB files
.ilb files serve several distinct purposes depending on the software that created them. Most commonly, they are Game Image Library Archives utilized by classic PC games like Heroes of Might and Magic III, Fantasy General, Wizardry 8, and Sacrifice to store 2D sprites, UI elements, and character portraits. Alternatively, .ilb files function as HMI (Human-Machine Interface) Graphical Component Libraries in software like Mitsubishi GT Designer and ProPresenter, or as marine engine performance logbooks for Logimatic software.
The main disadvantage of .ilb files is that they are highly proprietary and fragmented. Game archives use custom, undocumented binary packing that standard image viewers cannot read. HMI and marine logbook files require expensive, specialized industrial software to open. None of these variations are supported by web browsers or standard operating systems. Users usually need to convert this file to extract the visual assets into standard formats like PNG or JPG, or unpack the underlying data into a ZIP file.
Because .ilb formats are closed and rely heavily on specific application environments, standard online converters fail to process them. Often, only the original game engine, dedicated community extractors, or the specific industrial software can properly read or export the data. However, just drag and drop your file onto convert.guru to identify the format, view it, and convert it when possible. Our platform can inspect the file's internal hex structure to identify if it is a legacy game asset or a modern industrial file. If our analysis detects a supported underlying or embedded format - such as standard ZIP or GZIP compression used in many modern HMI libraries - viewing or conversion to common archive formats may still be possible.
Convert.Guru analyzes your ILB file, detects the exact format, and lets you read the text inside.
If you want to convert ILB file to , you can use Heroes of Might and Magic III or similar software from the "Game Asset & HMI Archive" category. In the File menu, look for Save As… or Export….
To convert files to ILB, try Heroes of Might and Magic III or another comparable tool in the "Game Asset & HMI Archive" category.
The ILB 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 ILB converter.