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CrystalDiskMark
What it is
CrystalDiskMark is Windows software for benchmarking disk and storage performance. It measures sequential and random read, write, and mixed performance, with Peak, Real World, and Demo modes and support for custom test profiles. The download page lists Standard, Aoi, and Shizuku editions; Standard is available as an installer, ZIP, or source code. Results can be exported as UTF-16LE text with a BOM, PNG, JPEG, or BMP. The maker lists Windows XP through Windows 11 and Windows Server 2003 through 2025 support across x86, x64, and ARM64, though the installer and x64 version do not support XP or Server 2003. The desktop edition is free. A separate Microsoft Store edition costs $9.99, paid once and lists automatic background updates, easy installation on Windows devices, and improved reliability. The maker cautions that benchmark runs may shorten SSD or USB memory life and that results from different major versions are not compatible. Results may also vary with test file size and position, fragmentation, storage controller, CPU speed, and data pattern on some SSDs.
For and against
For
- Measures sequential, random, and mixed performance.
- Includes Peak, Real World, and Demo modes.
- Exports results as text and image files.
- Free desktop edition is available.
Against
- Benchmarking may shorten SSD or USB memory life.
- Results are incompatible across different major versions.
- Installer and x64 builds exclude XP and Server 2003.
- Microsoft Store edition costs $9.99, paid once.
The verdict
CrystalDiskMark offers configurable storage benchmarks, several measurement modes, and multiple result export formats for Windows. The free desktop edition is available, with a separate Microsoft Store edition at $9.99, paid once; the maker notes that testing can affect storage lifespan and results vary by setup.
Who it suits
CrystalDiskMark suits Windows users who need configurable sequential and random storage measurements and exportable results. Its different editions and download formats offer several ways to obtain the software.
Plans and prices
Free desktop edition
Windows desktop software · installer, ZIP, and source code downloads
Read 8 Oct 2026 · crystalmark.info
Microsoft Store edition
Windows Store edition · automatic background updates · easy installation on Windows devices · improved reliability
Read 8 Oct 2026 · crystalmark.info
On the record
- Benchmark caveat
- The maker warns that CrystalDiskMark may shorten SSD or USB memory life and that results are not compatible between different major versions.crystalmark.info · read 8 Oct 2026
- Benchmark measurements
- It measures sequential and random read, write, and mixed performance.crystalmark.info · read 8 Oct 2026
- Code signing
- The maker says its latest EXE, DLL, and SYS files will be digitally signed; the listed current certificate signer is CrystalMark Inc.crystalmark.info · read 8 Oct 2026
- Customization
- The listed features include multiple languages and themes.crystalmark.info · read 8 Oct 2026
- Custom test profiles
- Yescrystalmark.info · read 24 Sep 2026
- Download formats
- The Standard Edition is available as an installer, ZIP, and source code download.crystalmark.info · read 8 Oct 2026
- Editions
- The download page lists Standard, Aoi, and Shizuku editions.crystalmark.info · read 8 Oct 2026
- Installer note
- The maker says some installers bundle the E START App installer in partnership with GMO INSIGHT.crystalmark.info · read 8 Oct 2026
- License
- The CrystalDiskMark license page states that the software is under the MIT License and provided without warranty.crystalmark.info · read 8 Oct 2026
- Measurement modes
- It offers Peak, Real World, and Demo measurement modes.crystalmark.info · read 8 Oct 2026
- Network drives
- The maker says running with Administrator rights hides Network Drive, and recommends running without those rights to measure it.crystalmark.info · read 8 Oct 2026
- Operating systems
- Windowscrystalmark.info · read 24 Sep 2026
- Privacy
- Crystal Dew World states that it does not collect privacy information.crystalmark.info · read 8 Oct 2026
- Purpose
- CrystalDiskMark is a simple disk benchmark and storage benchmarking software.crystalmark.info · read 8 Oct 2026
- Result variability
- Results can depend on test file size and position, fragmentation, storage controller, CPU speed, and—in some SSDs—the test data pattern.crystalmark.info · read 8 Oct 2026
- Support and contributions
- The maker invites development contributions and provides a contact email and translation guidance on its support page.crystalmark.info · read 8 Oct 2026
- Windows support
- System requirements list Windows XP through Windows 11 and Windows Server 2003 through 2025, with x86, x64, and ARM64 architectures; the installer and x64 version do not support XP or Server 2003.crystalmark.info · read 8 Oct 2026
- Workload areas
- Sequential and random read/write performancecrystalmark.info · read 24 Sep 2026
