Benchmark Builder Guide
Run a JavaScript snippet repeatedly in your browser and display approximate timings.
Benchmark Builder runs JavaScript code in your browser repeatedly and measures how long it took. It does not compare several measured values or compute ratios. Only use code you wrote and understand: unlike a text-only converter, this page executes the snippet with access to the page’s JavaScript environment.
Try harmless arithmetic
Replace JavaScript to run with let total = 0; for (let i = 0; i < 10; i++) total += i;. Set Iterations to 100 and click Run benchmark. You should see Total time, Iterations 100, Average, and Throughput (approximate runs per second). The exact times depend on your device and browser; do not compare them to someone else’s screenshot.
The tool first runs the snippet once as a warm-up, then runs it 100 more times for this example. A syntax error shows a status instead of measurements. An endless loop or expensive code can freeze the page; reload the tab if that happens. Do not paste untrusted snippets, passwords, or production data. Repeated timings here are rough observations, not a controlled benchmark.
Where your input goes
Processing runs in your browser. The tool does not upload your input to ilham.dev.
Related guide
For more background, read Calculators and Unit Conversion.
Questions you might have
- Can I use this to compare two snippets?
- Run one snippet at a time, under the same browser and conditions, then compare the recorded results yourself. This tool has no multi-snippet comparison or ratio view.