Runs 4 JavaScript sub-tests — Math, DOM, String, and Array — and scores your browser's performance.
A browser benchmark measures how quickly the JavaScript engine in your browser can execute specific types of operations. Modern browsers use JIT (just-in-time) compilation, which translates JavaScript into native machine code at runtime, making performance highly dependent on the quality of the JIT compiler.
The four sub-tests in this benchmark target distinct bottlenecks: math throughput, DOM manipulation overhead, memory allocation patterns, and sort algorithm efficiency. Together they provide a broad picture of browser JavaScript performance.
High-end hardware or a well-optimized browser. Typical of modern desktops with current Chrome/Edge.
Above-average browser performance. Suitable for all web tasks.
Typical mid-range performance. Most tasks will complete without issues.
Older hardware or a less-optimized browser. Consider updating.
Very old hardware, low-power device, or a browser without JIT compilation.
More free tools to check your setup.
Benchmark CPU performance with 5 JavaScript tests: integer math, float math, prime sieve, Fibonacci, and JSON parsing.
Measure your browser's actual frame rate over 10 seconds using requestAnimationFrame. See average, min, and max FPS with a live bar chart.
Stress test your GPU with a heavy Canvas animation of 500 moving circles. Monitor live FPS under load.
Check browser memory usage and device RAM. View JS heap size, device memory, and run an allocation speed test.
Measure your browser-to-server round-trip latency with 10 pings. See average, min, and max response time in milliseconds.
Learn how to optimize browser performance and understand benchmark scores.
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