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Memtest86+Prime95
Free

Free and open source under the GPL v2.

 Free

Free to download and use under the GIMPS free software license.

Windows, Linux Windows, macOS, Linux
  • Runs without an operating system, from BIOS or UEFI
  • Supports 32-bit and 64-bit x86 plus LoongArch64
  • Standard, demanding CPU and memory stress test
  • Builds for Windows, macOS, Linux and FreeBSD
  • Requires rebooting the machine to run a test
  • No ARM support
  • Not an OSI open source license
  • Dated interface
Downloadable app Downloadable app
Open source Closed source
License: GPL-2.0 License: GIMPS free software license
No account needed Not stated if an account is needed
Works offline Works offline

Checked October 1, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.