Test Your Brain.
Beat Your Best.
Free cognitive games: reaction time, memory, aim training and more. No signup. Play instantly.
Looking for more variety? Check out our roundup of the best free browser games for 2026 for other favourites worth a look.
🧠 Brain Games
Cognitive tests that benchmark your mental speed and memory.
Reaction Time
How fast can you click when the screen turns green?
Number Memory
See and remember the longest number you can.
Aim Trainer
Click 30 targets as fast as you can. Improve your aim.
Sequence Memory
Remember and repeat the flashing pattern. Like Simon Says.
Math Sprint
Answer as many maths questions as you can in 60 seconds.
Stroop Test
Click the ink colour of each word. Harder than it sounds.
Visual Memory
Remember which squares flash on a grid. Gets harder each level.
Typing Speed
How many words per minute can you type in 60 seconds?
Chimp Test
Numbers flash then disappear. Click them in order. Chimps beat most humans.
Word Games
Daily word puzzle, word search, scramble and hangman. A new word drops every day.
Daily Word Game
Guess the 5-letter word in 6 tries. New word every day, same for everyone.
Word Search
Find hidden words in a 12x12 grid. Five themes, multiple directions.
Word Scramble
Unscramble the jumbled letters before the timer runs out.
Hangman
Guess the hidden word letter by letter. Six chances to get it right.
Puzzle Games
Daily Sudoku and classic tile puzzles.
More to Play
Classic games, daily challenges and puzzle collections.
Word Games
Daily word puzzle, word search, scramble and hangman.
Play Word Games →Classic Games
Snake, Minesweeper, Solitaire, Block Stacker, Four in a Row, Memory Match and more.
Play Classics →Daily Challenges
A new brain game challenge every day. Keep your streak alive.
Play Today →Puzzles
Sudoku, 2048, Nonogram, Sliding Puzzle, Mahjong Solitaire and more.
Play Puzzles →Not Sure Where to Start?
Browse every game in one place, find out what your brain actually needs, or build a daily plan around the time you have.
All Brain Games
Every game sorted into memory, speed, logic and focus, with difficulty badges so you can pick your level.
Browse All Games →Brain Health Quiz
12 questions on memory, focus, sleep and stress. Get an honest read and three games matched to your weak spots.
Take the Quiz →Daily Training Planner
Answer four questions and get a daily session plus a full seven day plan. Print it or save it as a PDF.
Build My Plan →Cognitive Science & Tips
Evidence-based articles on reaction time, memory and brain training.
Average Human Reaction Time: What's Normal and How Do You Compare?
273ms is the global median. See how age, sleep and practice shift the numbers.
Read article → Reaction TimeHow to Improve Your Reaction Time: Science-Backed Tips
Sleep is the biggest lever. Aim training is the most specific. Evidence-based breakdown.
Read article → ResearchDoes Brain Training Actually Work? The Honest Science in 2026
75 neuroscientists, the FTC, and what the research actually says about brain training apps.
Read article → GuideFree Online Games With No Download: Brain Games You Can Play Right Now
Every game available here, what each one measures, and how to build a daily habit that tracks progress over time.
Read article → ResearchDo Brain Training Games Actually Work? What the Research Says
What the games reliably improve, where the scientific debate stands, and what has a stronger track record for cognitive health.
Read article →