Our Mission

Know your brain.
Test your limits.

reflexbench is a free suite of cognitive performance tests covering reaction time, memory, attention, speed, and more, with no sign-up required.

Why We Built This

Cognitive performance testing has long been used in research labs and clinical settings. We wanted to make these tests accessible to everyone by providing them in a beautifully designed, free to use, and private format.

reflexbench features 40 tests across categories like reaction speed, working memory, attention, processing speed, and motor skills. Each test is based on established paradigms from cognitive science research.

40
All Drills
100%
Free Forever
0
Zero Sign-up
99.9%
Calibrated Baselines

Our Principles

Research-inspired

Every drill is modeled on established cognitive science and motor paradigms.

Privacy-first

All test data stays in your browser. Nothing is sent to our servers.

Sustainable model

Supported by non-intrusive ads to keep resources free for everyone.

Benchmark percentiles

Results are compared against research models and community attempts so you know where you stand.

What We Test

Our 40 tests span seven core cognitive and physical performance categories:

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Speed & Reaction

6 tests

How fast does your brain respond? Measure raw visual reaction latency, processing rate, and choice discrimination.

Reaction Time F1 Reaction Processing Speed Visual Reflex Frame Timing Choice Reaction Time
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Aim & Precision

6 tests

Benchmark FPS mouse mechanics, crosshair stabilization, ballistic flick accuracy, and dynamic target switching.

Aim Trainer Flick Aim Target Switching Mouse Accuracy Target Shooter Aim Tracking
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Tactical & Combat

6 tests

Engage in high-intensity 3D combat drills, frame-perfect parry deflection, QTE execution, and stressful defusal scenarios.

Parry Reaction Bomb Defusal Hotbar Speed Shoot House: 3-Target Shoot House: 5-Target QTE Reaction
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Motor & Mechanics

6 tests

Measure raw keystroke velocity, key indexing, Actions Per Minute (APM), and multi-directional keyboard agility.

Typing Speed Button Mashing APM Test WASD Trainer WASD Dodge Numpad Trainer
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Memory & Recall

5 tests

Test your capacity to retain and reconstruct visual patterns, digit spans, word lists, and spatial sequences.

Chimp Test Pattern Memory Sequence Memory Verbal Memory Working Memory
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Focus & Executive

5 tests

Can you stay vigilant and suppress incorrect impulses? Benchmark sustained attention, Stroop interference, and task switching.

Sustained Attention Go / No-Go Stroop Test Object Tracking Task Switching
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Perception & Logic

6 tests

Challenge spatial mental rotation, subtle color discrimination, blind time estimation, and strategic decision-making.

Blind Timer Circuit Puzzle Lockpick Simulator Color Perception Test Your Luck Iowa Gambling

How Scores Work

Each test evaluates your performance using calibrated distribution models derived from cognitive science literature alongside ReflexBench community benchmarks. Your percentile reflects how your score compares against recorded attempts, factoring in real-world hardware latency.

01. Precision
High-frequency DOM & hardware timing clock measuring response latency and click accuracy.
02. Calibration
Results calculated against calibrated Gaussian distribution models and published research baselines.
03. Percentiles
Instant percentile rank showing how your score compares against ReflexBench benchmark attempts.

Published Research Baselines

Drill paradigms and reference distribution curves are derived from peer-reviewed cognitive psychology and psychomotor literature.

ReflexBench Community Standings

Percentiles and leaderboard standings reflect real-world browser performances across thousands of completed community sessions.

Transparency & Medical Disclaimer

ReflexBench drills are designed exclusively for self-benchmarking, skill training, and competitive gaming analysis. They do not constitute a medical, psychiatric, or neurological evaluation or diagnosis.

Ready to test yourself?

Take any of our 40 free cognitive tests with instant results.

Browse All Tests