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TechTool Pro

Hard drive and system repair-and-maintenance tool.

TechTool ProOverview

TechTool Pro 8 is the most robust hardware diagnostic tool available for Macintosh. Easy to use for both home users and professionals, TechTool Pro utilizes full 64-bit compatibility to keep your Mac running at its best. TechTool Pro 8 brings with it some of the deepest hardware testing yet - testing components on your motherboard that no other utility can access. You can now test the sensors and fans on your Mac, along with the battery if you're using a Mac laptop. In addition, we've now integrated Protogo, so that you can create your own custom test drives for out in the field.

You can now take it with you The portability of TechTool Protogo is now included with every copy of TechTool Pro. TechTool Protogo allows you to create a bootable diagnostic device that contains TechTool Pro and all of its most powerful tools as well as any of your own utilities you may wish to install. You can then use this device to boot, check, maintain, and repair Macintosh computers as needed. Simply launch Protogo, choose Protogo from the Mode menu, and use it to set up a diagnostic disk. Whether you have a fleet of computers to maintain for your business, or simply have your family's MacBooks to look after on the road, Techtool Pro 8's Protogo feature can give you access to all the tools you need. With your Protogo device, you can start up more Macs more quickly than with a traditional DVD, and have the tools to get more done.


Note: Owners of earlier versions of TechTool Pro can upgrade to version 8 for $39.99.

  • Restored resizing for TechTool Pro 8 main window.
  • Added Thunderbolt test gauge.
  • Added TechTool Protogo as a Tools category selection.
  • Added individual fan selection to Fan Test.
  • Added support for MacBook (Retina, 12-inch, Early 2015).
  • Added support for MacBook Pro (Retina, 15-inch, Mid 2015).
  • Added support for iMac (Retina 5K, 27-inch, Mid 2015).
  • Added Fan and Sensor names into the Reports category.
  • Updated eDrive creation and removal routine.
  • Enhancements to the File Structures test for stability and improved detection.Fixed Memory Test issue in which test could freeze.
  • Fixed Surface Scan crash that could occur when bad blocks are encountered.
  • Updated Volume Optimization to support 4096k block size volumes.
  • Addressed a Fan Test issue for iMac (Mid 2009) models.
  • Updates for the Local Network tool.
  • Added French, German, and Japanese localization support.
  • Stringhe di identificazione macchina aggiornate per controllare computer.
  • Many other improvements and enhancements.

TechTool ProTech Specs

Free to try
File Size
Operating Systems
Mac OS X
System Requirements
  • OS X 10.8 or later

TechTool ProPrevious Versions

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f.lux Icon
Adjusts the color of your display based on the time of day.
Apple OS X Lion Icon
Current update for Apple's Mac operating system.
Drive Genius Icon
Powerful system utility.
CrossOver Icon
Run Windows apps on your Mac.
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For Mid 2012 Retina display models.
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Collapse, Minimize-In-Place your windows and more!