CPU Test Online
Learn about CPU performance checks and browser-friendly processor diagnostics without installing software.
How to use this test
Open the tool and let the browser read supported system or network signals. For bandwidth tests, start from a quiet connection and avoid downloads in other tabs.
How the measurement works
Browser tools can explain and collect limited performance signals; deeper CPU benchmarks require operating system utilities.
How to interpret results
System information is intentionally limited to browser-exposed data. Network speed varies by WiFi, routing, endpoint load and active background traffic.
Troubleshooting tips
Disable VPNs for a comparison run, move closer to the router, close background downloads and reload if browser privacy settings hide a capability.
Related tests
You can also browse every utility from the complete tool index.
Common cpu questions
What does the cpu result mean?
Browser tools can explain and collect limited performance signals; deeper CPU benchmarks require operating system utilities.
Read full answer →How should I troubleshoot an unusual cpu result?
A browser cannot directly certify processor hardware or run unrestricted stress testing.
Read full answer →How can I get a more repeatable cpu result?
Use the same browser, device, settings and test conditions for each run. Repeat the measurement several times and compare a typical result rather than relying on a single unusually high or low value.
Read full answer →How accurate is this cpu tool?
A browser cannot directly certify processor hardware or run unrestricted stress testing.
Read full answer →