17.6
MemTest86 is a standalone RAM diagnostic program that boots from USB and checks memory for faults without an installed operating system.
Free planLinuxmacOSSelf-hosted
Best PC Stress Testing Tools in 2026
PC stress testing tools help put a computer under sustained load so you can check how a setup behaves. This chart covers software for Windows, Linux, macOS, self-hosted systems, Android and iOS. Compare the platform you need, pricing model and licence terms before downloading. If you want to run a tool on an Android phone or tablet, check its listing for Android support rather than assuming a PC version will work.
27.4
HCI MemTest checks whether a computer can store and retrieve data from memory reliably.
Free planLinuxWindows
37.2
Novabench is a benchmark and network test suite for evaluating, comparing, and understanding computer performance.
Free planLinuxmacOSWindows
- 4
AIDA64
AndroidiOSWindows7.0€59.95 one-time - 5
OCCT
OCCT is a PC tool for checking stability, applying stress tests, benchmarking, and monitoring system details.
Free planLinuxWindows6.7Free plan - 6
y-cruncher
y-cruncher computes Pi and other mathematical constants to trillions of digits, and also serves as a multi-threaded benchmark and stress-testing…
Free planLinuxWindows6.6Free plan - 7
3DMark
3DMark is benchmark software for measuring graphics, processor, ray-tracing, API, and stability performance across PC, Mac, notebook, tablet, and smartphone systems.
AndroidiOSmacOSWindows6.5 - 8
fio
fio is a free, GPL-2.0-licensed tool for simulating storage I/O workloads to measure performance or reproduce bugs.
Free planLinuxmacOSSelf-hostedWindows6.5Free plan - 9
Intel VTune Profiler
Intel VTune Profiler analyzes application and system performance to help developers locate bottlenecks across AI, HPC, cloud, IoT, media, and storage workloads.
Free planLinuxSelf-hostedWindows6.5Free plan - 10
stress-ng
stress-ng is a free tool for exercising computer hardware and operating system interfaces under load.
Free planAndroidLinuxmacOSSelf-hosted6.4Free plan - 11
Autoruns
Autoruns is a free Windows utility for examining programs and drivers set to run during startup, login, or when certain built-in Windows applications open.
Free planWindows6.3Free plan - 12
Prime95
Prime95 is free software for searching for Mersenne primes and contributing computing work to GIMPS, an international public project.
Free planLinuxmacOSSelf-hostedWindows6.3Free plan - 13
UNIGINE Heaven Benchmark
UNIGINE Heaven Benchmark is a graphics benchmark for assessing GPU performance, stability under stress, and cooling-system load.
LinuxmacOSWindows6.1 - 14
UNIGINE Superposition Benchmark
LinuxWindows6.0 - 155.9Free plan
- 16
BurnInTest
LinuxWindows5.7From $58 a year - 17
Karhu RAM Test
Karhu RAM Test is a paid Windows memory stress-testing tool designed to detect faulty hardware and instability from overclocking.
Windows5.5 - 18
stress-ng
AndroidLinuxmacOS4.9 - 19
ThermalStats
WebLinuxWindows4.8 - 20
GPU Magick
LinuxmacOSWindows4.7 - 21
clgpustress
LinuxWindows4.6 - 224.6
- 23
gpu-burn
LinuxWindows4.6 - 24
Linpack Xtreme
LinuxWindows4.6 - 25
NVIDIA GPU Stress Test
LinuxWindows4.6
Choosing well
Check the platform
Choose software that matches the system you plan to use. Platforms represented in this category include Windows, Linux, macOS, self-hosted systems, Android and iOS.
For Android, confirm that the specific listing supports Android before you install or pay. A Windows or Linux download is not an Android app.
Compare free and paid access
Pricing ranges from free plans to freemium and paid products. Check the current price and what the plan includes before choosing.
AIDA64 lists a paid plan from $65.95 and a 30-day trial. BurnInTest lists a price from $149. Autoruns, CoreCycler and FurMark list free plans.
Read the licence
If you need to read or change the code, check the tool's licence and repository details. Several entries are published through GitHub, while others provide downloads from a product website.
Match the setup
Decide whether you need a desktop download or a self-hosted option. Then check the listed operating system and any trial or free-plan terms before starting.
Questions people ask
Do these tools have Android versions?
Android is a platform represented in this category, but support depends on the individual tool. Check the tool's listing before installing.
Can I use a free option?
Yes. Free plans are offered by items in this category, alongside freemium and paid pricing models.
Is there a free trial for paid software?
AIDA64 lists a 30-day trial. Trial terms vary by product, so check the current listing.
Which platforms are represented?
The category includes software for Windows, Linux, macOS, self-hosted systems, Android and iOS. Verify the platform for the tool you choose.
Are any tools open source?
Several entries link to GitHub repositories. Check the individual repository and licence when source access matters.