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DiskSpdfio
Free

Free and open source from Microsoft.

 Free

Free and open source.

Windows, Command line Linux, Command line
  • Built and used by Microsoft's storage engineering teams
  • Highly configurable synthetic workloads
  • Highly configurable workloads through job files
  • Many I/O engines for different storage paths
  • Command line only, with many options to learn
  • Windows only
  • Steep learning curve for new users
  • Command-line only, no built-in graphical interface
Downloadable app Downloadable app
Open source Open source
License: MIT License: GPL-2.0
No account needed No account needed
Works offline Works offline

Checked September 24, 2026

Checked September 23, 2026

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