Chapter 1
What we measure
FPS Test helps you evaluate visual experience quality: whether gameplay feels smooth and responsive, how motion looks during fast action, and whether frame delivery stays consistent over a session.
The interactive FPS test tool stays on the run page at /run/. Home, blog, and guides link to it; the calculator and live controls are not duplicated elsewhere.
Chapter 2
Limitations
Browser FPS tests validate WebGL throughput and frame stability on your system. They complement in-game FPS counters and native benchmarks but do not replace title-specific testing.
Compare results only at identical settings and durations. Use exported JSON from /run/ to track changes over time.