TechTool Pro is a feature-packed release of the most comprehensive diagnostic, repair, and maintenance utility of all time! No product comes close to TechTool Pro for ensuring that all your hardware and software is operating at peak performance. Use TechTool Pro for:

Diagnostics and Repair Start with Check Computer to perform a complete diagnostic check of your Mac and hard drives. A single click of your mouse runs a SMART Check of your hard drive to detect impending drive failure, a RAM test, analysis of disk directories and more. If problems are found, advice is provided on how to proceed to repair the problem. Use Check Computer regularly as a part of your preventive maintenance program. Customize testing using built-in preferences.

Drive Testing and Repair Techtool Pro will test, rebuild, and repair damaged directories on corrupted Mac OS Extended hard drives, and optimize the data directories when they are repaired. Techtool Pro can also repair Apple's new APFS file system, standard Mac OS Extended volumes, as well as MS-DOS (FAT32) and ExFAT formatted volumes. When rebuilding Mac OS Extended volumes, Volume Rebuild will display a comparison chart before directory data is replaced. Use Volume Rebuild to keep your drives operating at their peak performance.

Smarter SMART Check Hard drives include a technology called SMART (Self Monitoring, Analysis and Reporting Technology) which can inform a computer about the health of its hard drives. In most utilities, just the overall results - passed or failed - are reported to the user. In the failed state, often there is little or no time to back up data before the drive fails entirely. Previous versions of TechTool Pro reported the overall status of each attribute, but some attributes don't contribute to the failure of a drive. Now, the SMART Check has gotten smarter. TechTool Pro now knows which attributes contribute to drive failure, and will report a failing result before the drive fails completely. Giving you time to rescue your data.

Partition Map TechTool Pro will test and repair hard drive partition maps. The Partition Map test will verify the health of the partition map and the Partition Repair tool will repair any errors found in the partition map.

Memory Test RAM problems are quite prevalent and can cause a variety of crashes, program errors and even data loss. We've seen many cases where a user will be chasing down a disk or extension problem when their issue was simply a faulty and inexpensively replaced memory module. As part of the RAM test, we've also added an SPD report that shows you an enormous amount of technical and other interesting information about your computer's memory.

eDrive Using TechTool Pro, you can easily create an eDrive, an extra startup partition based on the active system volume, which can be used as an emergency startup partition or to perform regular maintenance on your Mac. The eDrive is based on your specific Macs system and includes TechTool Pro's tools for Mac repair. Using the eDrive, there's no need to reformat or to boot from a DVD or secondary hard drive. If needed, the eDrive's size can be expanded to fit your needs.

Volume Cloning
Volume Cloning creates exact duplicates of your volumes for trouble-free archiving to backup your data and applications. Cloning volumes can also be helpful if you are upgrading from a smaller size hard drive to a larger drive. You have the options of creating a duplicate of an entire disk, file syncing by adding only the changed files to a clone, or cloning to numerous disc image formats. If you have an available drive, you can even use the tool to optimize disks that are especially fragmented.

Volume and File Optimization
TechTool Pro performs both file and volume optimization. File optimization defragments individual files on the hard drive. Volume optimization consolidates the free space on a hard drive. For full optimization, perform Volume Optimization after File Optimization. The resulting optimization simplifies the file storage layout and may enhance the overall performance of your drive.** 

Disk Speed
Use Techtool Pro to measure disk speed. Drive manufacturers advertise speeds that may not be realistic for real-world use, depending on the connection used, etc. Find out how your drive actually performs using the Drive Speed tool.

Internet Speed
Use the Internet Speed tool to measure your real-wold internet connection speed. Many speed test websites optimize to give the best speed possible. The Internet speed tool uses the same servers used to host a large percentage of the internet so you can gauge realistic performance.

APFS Snapshot Recovery
Techtool Pro includes data recovery options for APFS volumes. Create longer lasting APFS snapshots that can be used to recover accidentally deleted files, even if a backup is unavailable. Create snapshots automatically using the new Snapshot Usage feature in Techtool Protection, and mount and recover from your snapshots using the Snapshot Recovery tool.

Battery Check Test
Techtool Pro tests internal Mac laptop batteries as well as the batteries in iOS devices. For iOS battery testing, trusted devices can be tested over WiFi as well as through a wired connection.

Data Recovery
TechTool Pro helps you recover your data from corrupted drives or volumes that don't mount on the desktop to save the data to another location.† Use the Trash History feature to track the location of deleted files and increase the chance of their recovery in the case of an accidental deletion.

Processor Benchmarking
Get an objective measurement of your Mac's processor performance. The Processor Benchmark too uses industry-standard measurement algorithms to test processor performance. Using this tool, you can get metrics that can be used to compare processor speeds apples-to-apples. Avoids the confusion of comparison using Megahertz.

Network and Connectivity Testing
TechTool can test your Bluetooth, Wifi, Ethernet and any other network network interface. Troubleshoot problems staying connected to wifi, or problems connecting to Bluetooth peripherals such as speakers, keyboards, and more.

Network Monitoring and Connectivity
TechTool Pro will monitor the configuration of your local area network (LAN) by revealing the active services and ports on each selected machine or Bonjour supported device on your LAN. This information is important for strengthening security on a specific machine, Bonjour supported device or your overall LAN, and is also helpful in tracking what devices have been in use in the past that are no longer available since the last time monitoring was performed. 

TechTool Pro

System Requirements:

• Apple Silicon and Intel-based Macs
• macOS 10.13 ‘High Sierra’ through macOS 15 ‘Sequoia’ beta

**All Macs running macOS 12 ‘Monterey’ and later, and Apple Silicon Macs running macOS 11 ‘Big Sur’ and later will only start up using devices signed by the macOS installer. As a result, Techtool Pro cannot automate copying macOS, so the eDrive and Techtool Protogo features are not available on these Macs. Techtool Protogo features are limited on Intel Macs running Big Sur. Instead, installing macOS onto an external drive is recommended to achieve similar functionality.

†Note: Data Recovery may not recover data in all circumstances.

 ***Note: Defragmenting (Optimizing) is not supported for APFS volumes, and is not advised for any drive with a Solid State component. Solid state drives do not benefit from defragmentation, which only serves to wear out those drives sooner. Optimization for APFS rotational drives is not yet possible with the current amount of APFS documentation provided by Apple, which currently provides insufficient documentation for defragmenting a disk.

††Note: User must be logged in for automatic testing to occur.