Brain & Cognitive Tests — Reaction, Memory & Aim

Free cognitive and reaction tools to measure and improve mouse control, memory, attention, and reaction speed.

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Reaction Time Test - 5 Round Average

Measure your true visual reaction time by averaging 5 attempts. Compare your reflex speed with pro gamers and global statistics.

Aim Trainer - FPS Aim Practice Online

Improve your aiming skills with our free online FPS aim trainer—the best browser-based Aim Lab alternative. Practice accuracy, reaction time, and precision for CS:GO, Valorant, and Overwatch. No download required.

Sequence Memory Test

Test your short-term memory with this online sequence recall game. Watch the flashing tiles and repeat the pattern. A free brain training exercise to boost your working memory and focus.

Perfect Circle Game - Draw a Perfect Circle Online

Test your drawing skills with the Perfect Circle Game. Can you draw a 100% perfect circle? Challenge your mouse accuracy now.

Chimp Test - Visual Working Memory Test

Can you beat a chimpanzee's memory? Test your visual working memory and cognitive speed with this famous experiment from Kyoto University. A challenging brain game to improve your short-term memory.

Stroop Test - Test Your Brain's Processing Speed

Challenge your selective attention and cognitive flexibility with the classic Stroop Test. How fast can you identify the color, not the word?

Brain & Cognitive Tests — Reaction, Memory & Aim

Train reaction time, aim, sequence memory, and focus with free online brain games used by Human Benchmark fans. Free cognitive and reaction tools to measure and improve mouse control, memory, attention, and reaction speed.