Diagnostic tools downloads

Diagnostic tools
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Search by code or topic, or just browse. Several hundred codes are included, some with...

Freeware
Classic

Added Dec 1, 1998
Popularity: 91%

Disk First Aid is an easy to use utility that verifies and repairs some problems that may...

Freeware
Classic

Added Dec 26, 2000
Popularity: 96%

This program scans for files with bad creation or modification dates, and fixes them.

Freeware
Classic / OS X
Added Jul 7, 2004
Popularity: 85%

GURU is an acronym that stands for GUide to Ram Upgrades.

Freeware
Classic

Added Jul 18, 2000
Popularity: 28%

Has your Mac become slow and unresponsive? Has it lost some of the zing it used to have?

Freeware
10.10 / 10.9 / OS X / 10.8
Added Feb 17, 2016
Popularity: 31%

Installer Observer determines exactly what an installer has done to your system.

Freeware
Classic

Added Aug 28, 2000
Popularity: 46%

A free utility to reveal some useful hidden features and maintenance tools.

Freeware
OS X
Added Oct 30, 2009
Popularity: 37%

KisMAC is an open-source and free stumbler/scanner application for Mac OS X.

Freeware
10.6 / 10.7
Added Mar 6, 2012
Popularity: 98%

Gives control over PowerBook's or MacBook Pro's backlit keyboard (if available).

Freeware
OS X
Added Mar 29, 2007
Popularity: 63%

This utility lets you test the Active Matrix Display of your PowerBook or iBook for stuck...

Freeware
OS X
Added Jun 17, 2002
Popularity: 94%

This is a simple AppleScript that tests two things: 1.

Freeware
OS X
Added Oct 7, 2009
Popularity: 19%

MiniUsage displays various data like CPU usage, amount of network flow, battery status and...

Freeware
10.5 / 10.6 / OS X / 10.7
Added Aug 9, 2012
Popularity: 13%

The free GEARS tool for Mac allows home users and IT professionals to easily monitor the...

Freeware
10.9 / 10.8
Added Apr 24, 2015
Popularity: 6%

ResEdit is Apple's own utility for changing a file's resources.

Freeware
Classic

Added Jul 14, 1999
Popularity: 80%

SCSI Probe determines the type, version and product name for every device connected.

Freeware
Classic

Added Apr 16, 2001
Popularity: 67%

Slot Info tests and reports information on all cards that are plugged into your Macintosh...

Freeware
Classic

Added Jul 9, 1998
Popularity: 57%

Mac is undeniably an efficient device you can rely upon for all your computing needs, but,...

Freeware
10.10 / 10.9 / 10.7 / 10.8
Added Dec 1, 2015
Popularity: 83%

TattleTech is a much improved version of the old TattleTale.

Freeware
Classic

Added Jun 22, 2002
Popularity: 78%

TechTool Lite is a diagnostic tool that will rebuild your desktop, zap your PRAM and...

Freeware
Classic

Added Sep 11, 2002
Popularity: 76%

TM Error Logger is a Macintosh Time Machine error-reporting program.

Freeware
OS X
Added Sep 5, 2009
Popularity: 17%
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