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This library allows to manipulate FAT file systems using the Java programming language. Because of it's age and simplicity, FAT can be called the least common denominator in file systems, being used in digital cameras, cell phones, ... and being supported by almost every operating system in existence. This project aims for making FAT file systems accessible for Java programs without using the operating system to interpret the on-disk structures. Instead, we provide a pure - Java implementation of the FAT specification from MICROS~1.


The following features are currently supported:

  • creating FAT12, FAT16 and FAT32 file systems through the super floppy formatter
  • r/w access to FAT12, FAT16 and FAT32 file systems
  • manipulating the FAT file attributes (archive, hidden, system and read-only)
  • r/w access to the FAT's volume label
  • no external dependencies

Getting started

To use the fat32-lib you will have to add it to the classpath of your project. For Maven users it is sufficient to add


to the dependencies section of your pom. Now check out the API docs. If you're into creating FAT file system, the SuperFloppyFormatter would be a good starting point. And don't hestitate to ask if there are any questions.


This library was originally based on the FAT file system driver included in the JNode operating system. Since then, many bugs were fixed, the code was re-factored several times, and now I think it is fair to call the fat32-lib an original implementation of the FAT file system family.


A Java library for manipulating FAT file systems.







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