Reaction Test — Level 1
Press the moment the circle turns green. Check and train your reflex.
Free, private, no install. Start in seconds and track your progress over time.
Press the moment the circle turns green. Check and train your reflex.
Multiple rounds, variable delays and error tracking. Measures stability, focus and response control.
Find targets among distractors. Trains precise scanning and resistance to visual clutter.
Press the moment the circle turns green. Check and train your reflex.
Multiple trials and error control give you a more stable, competition-ready metric.
Remember highlighted tiles on a 3×3 grid. Simple format, surprisingly telling.
Transcribe a short text. Score balances WPM and error rate to avoid "mashing".
Search for targets buried in noise. A focused visibility and attention challenge.
Name the color of the word, not the word itself. A classic measure of executive control.
Respond to the middle arrow while flankers try to trick you. Tests focus and conflict resolution.
Go on arrows, but stop when the red square appears. A compact impulse-control probe.
Press only when the current letter matches the one from two steps ago. Simple rule, tough control.
Global Mind Tests brings research-inspired cognitive tasks to your browser. Each procedure follows a well-known experimental paradigm and is adapted for quick, reliable self-assessment. You get clear instructions, instant feedback, and optional global comparisons.
Instead of long, artificial questionnaires, you interact with short, focused tasks that tap directly into attention, reaction speed, working memory and interference control. The design stays minimal on purpose, so the only thing that competes for your attention is the task itself.
Every test uses a consistent score model. For speed-based tasks we show milliseconds; for composite tasks we use points × speed factor. In "Your results" you will find your best value, average value, and a percentile estimate based on our global means.
Most users quickly learn their "typical range" for each test. When you see a strong deviation from your baseline, it often reflects changes in sleep, stress, caffeine, training or illness – not a sudden, permanent jump in ability.
Results are stored locally in your browser by default. If you choose to share anonymized results to see global comparisons, the data is sent only with your consent and used to improve benchmarks. No personal data is required to use the site.
Students, gamers, professionals, or anyone curious about attention, speed and working memory. Use the tests to monitor your training, warm up your focus, or just learn how your mind responds under pressure.
Click a question to view the answer.