Frame Time Test

Collect requestAnimationFrame samples and inspect median, average, p10–p90 spread, and long-frame count.

—Median Hz estimate

—Median frame time

—P10–P90 spread

0Frames > 1.5× median

How to use this Frame Time Test

Measure browser animation frame intervals and estimate frame-time consistency. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.