Software for Measuring What Matters
The CrystalMark series is a collection of Windows software for checking storage health and measuring storage, CPU, and GPU performance. The software is independently developed and maintained by Noriyuki MIYAZAKI. With authorization from the developer, CrystalMark Inc. handles distribution, business licensing and support, technical cooperation, and collaborations.
Measure performance. Understand system health. Preserve the history of computing. CrystalMark products turn hidden information into something people can use to make informed decisions.
A storage health monitoring utility for HDDs, SSDs, NVMe SSDs, and other storage devices. It presents S.M.A.R.T. data, temperatures, operating hours, and more in an accessible form.
Product Site & DownloadA storage benchmark utility that measures the read and write performance of HDDs, SSDs, USB flash drives, memory cards, network drives, and other storage devices.
Product Site & DownloadA benchmark designed to measure and record computer performance across generations, including systems running legacy versions of Windows.
Product Site & DownloadSupporting Windows 95/NT 3.51 and later, this new-generation CPU benchmark evaluates performance from i386 through the latest processors using a single standard across past and future CPU generations.
Project WebsiteBenchmark projects designed to provide clear visual measurements across different generations of GPUs and graphics environments.
Product Site & DownloadThis is the principle we have continued to value since the release of CrystalDiskMark in 2007.
Computer performance and health are not always easy to understand. We believe in measuring and verifying what is actually happening, organizing complex information into a form that anyone can understand, and communicating it with integrity.
Software is not complete the moment it is released. It should continue to improve over time by supporting new hardware and operating systems and by incorporating the knowledge and feedback shared by users, developers, and companies.
Being open source means more than simply making source code available. It provides a foundation for people around the world to examine, verify, and help improve the software together.
While embracing new technologies, we also value the compatibility we have built over time and the people who continue to use older systems. We believe there is value not only in creating something new, but also in ensuring that software can continue to be used.
CrystalDiskMark and CrystalDiskInfo began as small, independently developed applications and have grown into software used around the world.
Through independent development by Noriyuki MIYAZAKI and distribution and support by CrystalMark Inc., the software will continue to be carefully improved for people around the world and remain useful for years to come.
With authorization from independent developer Noriyuki MIYAZAKI, CrystalMark Inc. handles software distribution, business licensing, support, technical cooperation, and collaborations.
CrystalMark Inc. distributes independently developed Windows software with authorization from the developer.
We provide licenses for internal deployment, commercial use, product bundling, and redistribution.
We provide technical support related to product deployment, operation, and use within organizations.
We work with storage-related companies on product support, specifications, compatibility testing, and issue investigation.
We develop collaborative projects combining software with hardware, brands, and characters.
As a high school student, Noriyuki MIYAZAKI discovered a benchmark program that inspired a lasting interest in measuring computer performance.
He began developing and publishing Windows software in 1998, released CrystalDiskMark in 2007, and CrystalDiskInfo in 2008. Both products grew into software used around the world.
CrystalMark Inc. was established in 2025 to bring the technologies and achievements built through these activities to more people, for generations to come.
Read the Full StoryBegan developing and publishing software for Windows.
Released a system benchmark and CPU information utility.
Released the first version of the storage benchmark utility.
Released the first version and received the 2008 Mado no Mori Grand Prize.
Noriyuki MIYAZAKI received Microsoft MVP recognition in C++.
Established as the business foundation for software distribution, support, and related activities.
With authorization from independent developer Noriyuki MIYAZAKI, CrystalMark Inc. handles software distribution, business licensing, support, technical cooperation, and collaborations.
Noriyuki MIYAZAKI develops and maintains the software as an independent developer and, as Representative Director of CrystalMark Inc., oversees its distribution, business support, technical cooperation, and related activities. Known as hiyohiyo, he has developed and published Windows software since 1998, including CrystalDiskInfo and CrystalDiskMark.
| Company Name | CrystalMark Inc. |
|---|---|
| Established | February 18, 2025 |
| Representative Director | Noriyuki MIYAZAKI |
| Capital | JPY 1,000,000 |
| Registered Office | RMBld. 701, 5-31-1 Minami 2-jo Nishi, Chuo-ku, Sapporo, Hokkaido, Japan |
| Business Activities | Software distribution, business licensing and support, technical cooperation, and collaborations |
Please note that we do not accept in-person visits at this address.
For inquiries regarding our products, business licenses, support services, media requests, or collaborations, please email us at contact@crystalmark.jp.
We do not provide support by telephone.