137+ Free Brain
Exercises & Games
Math, memory, focus, vocabulary, logic and visual pattern challenges — all playable instantly in your browser. No sign-up, no ads, no paywall.
Browse by category
Math
31 exercisesMental arithmetic, percentages, sequences and number reasoning drills.
Memory
10 exercisesTrain short-term, working and long-term memory through recall and pattern exercises.
Focus
10 exercisesImprove attention, reaction time and ability to filter distractions.
Vocabulary
66 exercisesExpand active vocabulary, synonyms, definitions and verbal reasoning.
Logic & Puzzles
10 exercisesClassic puzzles, pattern recognition and deductive reasoning challenges.
Visual & Patterns
10 exercisesMental rotation, pattern matrices, spot-the-difference, mazes and visual memory.
Popular this week
Arithmetic Drill
Ineffable — Synonym Quiz
Apocryphal — Synonym Quiz
Lugubrious — Synonym Quiz
Quixotic — Synonym Quiz
Vicissitude — Synonym Quiz
Ostensible — Synonym Quiz
Mellifluous — Synonym Quiz
About Brain Training
Brain Training is a free library of cognitive exercises designed to help you sharpen specific mental skills: processing speed, working memory, sustained attention, semantic precision, deductive reasoning and visual pattern recognition.
Every exercise is built around an evidence-based cognitive task — n-back, Schulte tables, mental arithmetic, synonym recall, mental rotation and similar formats studied in published cognitive psychology research. We provide the science citation on each exercise page.
- 100% free — no sign-up required to play any exercise.
- Browser-native — no downloads, no installs, no ads on play pages.
- Mobile app available — for iOS and Android, with progress tracking and streaks.
- Daily practice — 5-15 minutes a day produces measurable gains in 4-8 weeks (Bergman-Nutley & Klingberg, 2014).
