Reaction Time & Brain Games
Five free online tools to benchmark and train your reflexes, aim accuracy, working memory, and click speed. No account. No download. Just open and play.
Experience the authentic Formula 1 race-start sequence. Five red lights illuminate one by one -- react the instant they go out. Can you beat 200 ms like a real F1 driver? Your best time is saved for future attempts.
The classic human benchmark test. Click the instant the screen flashes green across 5 rounds. See your average, best and worst times -- and compare against the global human average of 250 ms.
Click 20 shrinking targets as fast and accurately as possible. Score is based on hits, speed bonus, and miss penalties. Track your accuracy %, average time per hit, and all-time best score across sessions.
Classic Simon-style working memory challenge. Watch the colour sequence light up with tones, then repeat it exactly. Each correct round adds one more step. How many can your brain hold before it slips?
Measure your raw clicks per second over 5, 10, or 15 seconds. Supports mouse clicks, spacebar, and touchscreen taps. See how your CPS compares to pro gamers -- and beat your own best score each session.
What Are Reaction Time & Brain Games?
Reaction time games are interactive browser-based tools that measure how quickly your brain processes a visual stimulus and sends a motor command to your hand. The core metric -- reaction time in milliseconds -- is one of the most studied variables in sports science, cognitive psychology, and esports performance research.
The five games on this page each target a different dimension of cognitive and motor performance. Together, they give you a complete picture of your reflexes, precision, memory, and raw click speed -- all for free, directly in your browser.
F1 Reaction Time Test
Formula 1 drivers must react to the race-start lights going out in under 200 ms -- often hitting 150-180 ms at peak performance. Our F1 Reaction Time Test simulates this exact sequence: five red lights illuminate one by one at one-second intervals, then go dark at a random moment. React the instant they disappear. False starts (reacting before the lights go out) are penalised -- just like real racing.
Classic Reaction Time Benchmark
The Reaction Time Test is modelled on the widely recognised human benchmark test. A square flashes green after a random delay of 1.5-4 seconds -- click the instant you see it. Five rounds give you an average, best, and worst score. The global human average reaction time is approximately 250 ms. Under 200 ms puts you in the top 10%. Consistent sub-180 ms is elite, typical of esports athletes and competitive gamers.
Aim Trainer for Mouse Accuracy
Used by FPS players across games like Valorant, CS2 and Apex Legends, the Aim Trainer spawns 20 targets in randomised positions across an arena. As you progress, targets shrink -- increasing the precision required. Your score combines hits, miss penalties, and a speed bonus for fast clicks. Daily sessions of 15-20 minutes have been shown in skill-transfer studies to materially improve in-game accuracy over 2-4 weeks.
Memory Sequence Game
Based on the classic Simon electronic game from 1978, the Memory Sequence Game challenges your working memory capacity -- the cognitive system that temporarily holds and manipulates information. The average person can hold 7 plus or minus 2 items (Miller's Law). Reaching round 7 is normal. Round 12+ indicates excellent recall. Playback speed increases from round 5 onwards to raise the difficulty.
CPS Test -- Clicks Per Second
The CPS Test measures how many times you can click in 5, 10, or 15 seconds. The average user achieves 5-8 CPS. Competitive Minecraft PvP players target 8-12 CPS using techniques like jitter clicking or butterfly clicking. Scores above 14 CPS are world-record territory. The test supports mouse clicks, spacebar presses, and touchscreen tap input -- so you can compare results across devices.
Reaction Time Benchmarks
| Response Time | Performance Level | Who typically scores here |
|---|---|---|
| Under 160 ms | Elite | Professional F1 / esports athletes |
| 160 - 200 ms | Exceptional | Top-ranked gamers & sprinters |
| 200 - 250 ms | Above average | Experienced gamers, athletes |
| 250 - 300 ms | Average | Global human average |
| 300 ms+ | Below average | Fatigued, distracted, or warming up |
Tips to Improve Your Reaction Time
Warm up first. Your first 1-2 attempts are almost always slower. A few rounds of any reaction test before serious benchmarking leads to more accurate scores. Stay well-rested. Sleep deprivation increases reaction time by 30-50 ms in studies. Minimise distractions. Each additional cognitive load during testing slows your response. Train consistently. Short daily sessions (10-15 minutes) beat occasional long sessions for building the neural pathways that drive fast responses. All scores are automatically saved to your browser -- so you can track genuine improvement over days and weeks.
Frequently Asked Questions
performance.now() for sub-millisecond timing. Browser-based results are accurate to within ~10-20 ms depending on your monitor's refresh rate and browser timer resolution. They are excellent for relative benchmarking and tracking personal improvement over time -- just not for laboratory-grade scientific measurement.