Browser Performance Benchmark
Measure your browser’s JavaScript memory & processing speed.
Important Warning
This test is resource-intensive. It may cause your browser to slow down or become temporarily unresponsive. Please save any work before proceeding.
Test in Progress…
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Benchmark Complete!
Allocation Score
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Write/Read Score
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Total Time
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Frequently Asked Questions
What does this tool actually measure?
This tool measures the performance of your **browser’s JavaScript engine**, not your computer’s physical RAM sticks. It runs memory-intensive tasks entirely within the browser to see how quickly it can allocate memory, write data, and read it back. The results (in MB/s) reflect your browser’s software efficiency.
Why can’t a website test my physical RAM?
For security reasons, web browsers operate in a “sandbox.” This is a restricted environment that prevents websites from directly accessing your computer’s hardware, like RAM, file system, or CPU details. This protection is crucial to keep you safe from malicious websites.
What do my results mean?
A higher score (more MB/s) is better, indicating your browser can handle demanding web applications more smoothly. Scores can be affected by your browser version, the number of open tabs, background extensions, and your computer’s overall processing power. It’s best used to compare different browsers on the same machine or to see if browser updates improve performance.