Measure & Train Your Brain Speed & Reflex
48 free tools Free millisecond-precision reaction time tests, working memory games, typing speed benchmarks, and FPS aim warmup tools.
Cognitive Lab Journal
Measure first. Practice short. Read the method.
Reflextry is a free browser lab for reaction time, working memory, speed, and accuracy. Scores are transparent (milliseconds, spans, accuracy)—not clinical diagnoses or invented percentiles. Start with a baseline, train in 10–15 minute sessions, and use our guides when you want the science behind the number.
How we score tests
What milliseconds, spans, and accuracy mean—and what we refuse to claim.
What is a good reaction time?
Realistic ranges, hardware noise, and how to read your own scores.
Choice vs simple reaction
Why more options slow you down, and how to train each separately.
About the lab
Who builds Reflextry, our methodology, and how to contact us.
All guides
Memory, reflex, speed, and accuracy articles from the Cognitive Journal.
FAQ
Training frequency, privacy, scoring, and common product questions.
What Reflextry Measures
Free browser tests for reaction time, working memory, click speed, aim, and accuracy. Measure a baseline, practice in short sessions, and track progress on the statistics page—no account required for core tools.
Reflex & Reaction
Esports Gamer Reaction Test
Test competitive combat reflexes, quick-time event (QTE) parry timing, and esports reaction speeds in millisecond-accurate simulated combat scenarios.
Time Perception Test
Test your internal clock and temporal estimation. Hold and release the button to accurately produce target time intervals down to the millisecond.
Go / No
Measure response inhibition with a Go/No-Go task. Press on green Go trials, withhold on red No-Go trials, and track accuracy plus reaction time.
Flanker Test
Take the Eriksen Flanker task online. Respond to the center arrow while ignoring congruent or incongruent flankers to measure attention control.
Choice Reaction Time Test
Measure choice reaction time across 2–4 colored targets. Click the lit box as fast as possible and beat your average RT in milliseconds.
Audio Reaction Time Test
Measure your auditory reaction speed in milliseconds. Test hearing reflexes with instant audio cues and compare your sound reaction vs visual reaction times.
Grid Speed Test
Train visual scanning and peripheral reading speed with Schulte Tables. Find numbers in ascending order on a 5x5 grid to expand visual search speed.
Peripheral Vision Test
Train peripheral vision awareness and side reaction speed. Spot and click off-center stimuli to expand visual focus for driving, sports, and competitive gaming.
Directional Reflex Test
Test keyboard response speed and spatial decision-making. Press arrow keys matching rapid directional prompts to improve cognitive processing and reflex agility.
Multi
Test choice reaction time and selective attention. Process multiple visual and audio stimuli simultaneously to measure split-second decision-making speed.
Sequence Reaction Test
Combine memory recall with rapid motor reflexes. Follow fast-paced light sequences and execute rapid combos to train rhythmic response times and speed.
Whack
Play classic Whack-a-Mole online for free. Tap popping moles as fast as possible to measure reaction speed, precision clicking, and motor agility.
Color Switch Reflex Test
Train color reaction time and selective response speed. React immediately to screen color shifts and flash signals with zero hesitation.
Working Memory
Sequence Memory Test
Practice recalling expanding spatial light patterns with our free Sequence Memory Test. Read the scoring rules and compare your own sessions.
Chimp Test
Are you smarter than a chimpanzee? Take the famous Chimp Test to measure your visuospatial working memory. Memorize the number grid before it disappears.
Verbal Memory Test
Test verbal working memory with our free Verbal Memory Test. Identify seen words vs new words to measure linguistic retention and cognitive processing speed.
N
Train working memory with the classic N-Back task. Match letters that appeared N steps ago, track hits and accuracy, and push from 1-back to 3-back.
Multiple Object Tracking
Test dynamic visual attention and spatial tracking. Follow multiple moving target spheres among distractors in this science-backed cognitive test.
Number Memory Test
Measure working memory and digit span capacity with our free Number Memory Test. Memorize expanding numeric sequences and benchmark your recall score.
Visual Memory Test
Enhance visual retention and spatial pattern recognition. Test your visual memory by recalling flash grid patterns on an expanding matrix. Free human benchmark tool.
Color Memory Test
Challenge your chromatic memory and visual attention. Memorize fast-shifting color sequences and train cognitive flexibility with our free Color Memory Test.
Shape Memory Test
Train geometric shape discrimination and spatial memory. Memorize abstract shapes and symbols to enhance non-verbal visual reasoning and focus.
Symbol Memory Test
Improve abstract pattern recognition and associative memory. Match cryptic symbols and icons to sharpen mental focus and visual processing speed.
Word Recall Memory Test
Evaluate your verbal memory retention and vocabulary recognition. Test whether words are new or previously seen to measure short-term linguistic memory.
Card Match Memory Game
Train spatial memory and visual pattern recall with our free online Card Match Memory Game. Flip cards, match pairs with fewest moves, and beat the clock.
Motor Speed & CPS
cps
Test your raw clicks-per-second velocity.
Schulte Table Test
Classic Schulte Table challenge. Click shuffled numbers in order on 3×3 to 7×7 grids. Train peripheral vision, visual search speed, and focus under the clock.
Mental Math Speed Test
Sharpen mental arithmetic and calculation speed. Solve rapid addition, subtraction, multiplication, and division under the timer to boost math fluency.
Typing Speed Test
Test words per minute (WPM) and accuracy with our free 1-minute Typing Speed Test. Benchmark your keyboarding speed, track error rates, and improve touch typing.
word
Unscramble words with extreme speed.
Grid Speed Test
Train visual scanning and peripheral reading speed with Schulte Tables. Find numbers in ascending order on a 5x5 grid to expand visual search speed.
Number Rush Speed Test
Test rapid number recognition and tap speed. Hunt and click ascending numbers as fast as humanly possible to benchmark your cognitive processing rate.
Quick Sort Speed Game
Challenge cognitive categorization and rapid decision speed. Sort incoming items into corresponding categories under strict time constraints.
Esports Warmup
FPS Aim Trainer
Improve your mouse accuracy, target tracking, and flick speed for FPS games like Valorant, CS2, and Apex. Free 3D aim trainer directly in your web browser.
rpg
Challenge yourself and improve your skills.
Target Tracking Aim Trainer
Master smooth mouse tracking for competitive FPS games. Practice continuous precision aim against evasive moving targets with zero mouse smoothing.
Endless Dodge Game
Test dodging reflexes and spatial evasion agility. Navigate your cursor through infinite swarms of moving obstacles in this high-intensity reflex survival game.
Stroop Effect Test
Challenge your inhibitory control with the interactive Stroop Drop game. Resolve cognitive interference between falling color words and their ink hues.
Flick Shot Aim Trainer
Train muscle memory and snap aiming with our Flick Shot trainer. Calibrate rapid micro-adjustments and target acquisition for tactical shooters.
Rhythm Tap Game
Benchmark your musical timing accuracy and millisecond rhythm perception. Tap in sync with increasing BPM tempos and track off-beat latency errors.
Aim & Accuracy
image
Quickly spot the differences or hidden objects.
Color Blindness Test
Explore Ishihara-style procedural dot plates in a free educational color-vision game. Screen settings affect results; this is not a diagnostic assessment.
Mental Rotation Test
Benchmark 3D spatial visualization and cognitive rotation speed. Determine whether complex geometric shapes are identical or mirror-reversed in real time.
Data Entry Accuracy Test
Measure data entry speed, alphanumeric typing precision, and error rates. Test clerical keystrokes per hour (KPH) with realistic numeric and code benchmarks.
Pattern Matching Test
Improve visual pattern recognition and non-verbal reasoning. Match complex matrix patterns and geometric sequences to test visual acuity and analytical thinking.
Precision Clicking Test
Sharpen mouse precision and micro-target accuracy. Click small, pinpoint targets without missing to refine fine motor control and cursor accuracy for gaming.
Angle Estimation Test
Test your eye for geometry and spatial estimation. Guess degrees of given angles accurately to benchmark visual angle acuity and spatial judgment.
Color Match Test
Test color perception and subtle shade discrimination with our Color Match Test. Match target RGB hues under time pressure and benchmark visual precision.
What is Reflextry?
Reflextry offers 50+ free browser games for reaction time, memory, typing, clicking, accuracy, and aim practice. Each test records a score for that task so you can compare your own sessions.
A browser score includes the effects of your screen, input device, browser, and test settings. It is not a direct measurement of biological latency or a clinical assessment.
Make your practice sessions comparable
- Choose the same test, difficulty, and input device each time.
- Read the scoring rules before starting. Milliseconds, accuracy, span length, and words per minute describe different tasks.
- Repeat several trials and compare trends rather than one unusually good score.
- Take a break if you feel tired or uncomfortable.
Read our testing methodology for scoring formulas and hardware limitations. Your personal statistics show your own recorded progress, not population norms.
What a better score means
Practice gains are strongest on trained tasks; broad benefits in everyday cognition are less established. See Simons and colleagues’ review of brain-training research. This research does not validate Reflextry as a medical or intelligence test.
We do not publish a verified global benchmark dataset. Use your own repeated results as a practice baseline. For background and references, visit the science page.
Frequently asked questions
Does brain training actually work?
Practice can improve performance on the task you train. A better game score does not establish improved intelligence, safer driving, or prevention of cognitive decline. Reflextry tests are practice tools, not clinical assessments.
How often should I practice?
Start with a short session that fits your schedule and stop when tired or uncomfortable. Compare the same test and difficulty on the same device. There is no validated Reflextry training dose or guaranteed improvement timeline.
Can I use Reflextry for an esports warmup?
You can use the aim, tracking, and reaction games for a browser-based warmup. Their scores measure performance in these exercises, not your rank or likely performance in another game.
Is Reflextry free?
The tests are free to play in your browser. You can start a test without creating an account.