Stroop test
A free online Stroop test for attention and reaction time
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August 16, 2026
I Spent a Weekend Building a Stroop Test to See If I Can Still Focus
Lately, I’ve noticed how much of my day gets broken into tiny pieces — short videos, notifications, endless scrolling, and constantly switching between apps.
It made me wonder: how good is my attention now?
So I spent a weekend building Stroop Test Now, a simple online Stroop test that measures attention, reaction time, and cognitive interference.
It’s free, requires no sign-up, and gives you results immediately.
I built it partly for myself, but I hope it can also help anyone who’s curious about how well they can still focus.
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