Stroop test

A free online Stroop test for attention and reaction time

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Self-Reported Revenue

The creator of Stroop test has reported monthly revenues of $0.

This figure was last updated August 16, 2026, and has not been independently verified.

About

With so much fragmented content competing for our attention every day, I’ve become increasingly curious about how well I can actually stay focused. I built Stroop Test Now as a simple way to test and track my own attenti