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hfsdebug

Amit Singh・{{app.url}}・

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{{app.name}} is 32-bit. It will not be supported in macOS 10.15 Catalina (2019 release) unless it is updated by the developer.

About the app

macOS version built with Catalyst

Ready for Apple Silicon

macOS version has a universal binary & runs natively on Apple Silicon Macs.

Ready for Windows on ARM

Windows version has a native ARM64 binary & runs natively on Windows ARM devices.

Description

hfsdebug is a filesystem debugger for Apple's HFS Plus (hereafter referred to as HFS+) volume format. The term "debugger" may be somewhat of a misnomer for hfsdebug, because a key feature (rather, a limitation) of it is that it operates on an HFS+ volume only in read-only mode. Therefore, it cannot currently be used by itself to repair any defects in a volume, or to even write to a volume in any manner whatsoever. Nevertheless, hfsdebug is meant to be a useful tool in exploring HFS+ internals, as it allows you to browse, inspect, and analyze various aspects of HFS+ volumes. It can also calculate and display certain filesystem statistics. My original intent in creating hfsdebug was to quantify filesystem fragmentation under HFS+.

hfsdebug is obsolete and has been retired because it can behave incorrectly under several circumstances on modern versions of Mac OS X. For the next generation of HFS Plus debugging, check out fileXray—hfsdebug's functionality is a small subset of what fileXray can do.

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