Stroop Test
Name the ink color, not the word. A classic test of focus and reaction.
How you answer
Mode
Length
How many correct
Best score: · press space to start
Name the ink colour, not the word
Your brain wants to read it — don't let it
Tap the colour the word is printed in · keys 1– Does the word equal its ink colour? · ← yes · → no
The Stroop effect: reading is automatic, so naming a mismatched ink colour is hard.
Score rewards correct answers, speed and accuracy.
Press space
or R to play again.
Why you’ll love Stroop Test
Instant & free
No signup, no paywall, no limits — Stroop Test works the moment the page loads.
Completely private
Everything runs in your browser. Nothing you enter is ever uploaded or stored on a server.
Works on any device
Fully responsive and touch-friendly — use it on your phone, tablet or desktop.
Beat your best
Your scores and streaks save locally — come back to beat them.
How to use it
Open it
No download and no login — the tool is ready right at the top of this page.
Use it
Enter your details or start interacting. Everything updates live as you go.
Get your result
Copy, download or share your result in a single tap. That’s it.
Frequently asked questions
Stroop Test is 100% free — no signup, no watermarks and no usage limits. It’s one of 200+ free tools we build and give away.
Yes — your best scores and streaks are stored in your browser, ready when you return. Most also let you share your result.
Completely. Stroop Test runs entirely in your browser (client-side). Nothing you type, upload or generate is sent to our servers, so your data never leaves your device.
No. It works instantly in any modern web browser — Chrome, Safari, Edge or Firefox — on desktop and mobile.
Yes. The tool is fully responsive and touch-friendly, so it works great on phones and tablets as well as computers.
Global Maple System — a software & AI studio. We built Stroop Test (and 200+ other free tools) to show what we can do. Need something custom built? We’d love to help.
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Stroop Test is one of 200+ free tools from Global Maple System — a software & AI studio. Need a website, app, AI agent or automation? Let’s talk.