ReflexBenchmark is a free platform with 27 science-backed cognitive tests. No subscriptions, no paywalls - just accurate, instant brain benchmarks for curious minds worldwide.
We believe everyone should have access to professional-grade cognitive assessment tools - not just researchers with expensive lab equipment or patients in clinical settings. ReflexBenchmark democratizes cognitive science by bringing validated tests directly to your browser, for free.
Our goal is to help you understand how your mind performs across speed, memory, attention, reasoning, and perception - and how that compares to millions of people globally.
Our tests span five core cognitive domains, each measuring a distinct component of brain performance:
Every test is based on established cognitive science paradigms - from the classic Stroop Task (1935) to the N-Back test used in modern working memory research, to the Farnsworth-Munsell hue discrimination test used in optometry.
All tests are free, no account required. We're funded by non-intrusive advertising, not subscriptions or data sales.
Every test is based on peer-reviewed research. We cite our sources and explain the science behind each measurement.
We never sell your data. Scores are anonymized unless you create an account. Full details in our Privacy Policy.
Your ranking is calculated against real user data - not artificial curves or manufactured averages.
Tests work on desktop and mobile, with keyboard and touch support. No Flash, no downloads, no plugins required.
We're clear that these are screening tools, not clinical diagnoses. We always recommend professionals for medical concerns.
Our tests are inspired by or directly based on established psychometric instruments:
The ReflexBenchmark team researches each test's methodology, scoring bands, and reference statistics from peer-reviewed sources and standardized psychometric instruments (cited in the Scientific Basis section above) before implementing them.
We update reference ranges periodically as our own user data accumulates, and we welcome corrections - if you spot an inaccuracy in any test's scoring or scientific claims, please let us know and we'll review and fix it.
Last reviewed: August 2026
Questions, feedback, press inquiries, or partnership ideas? We'd love to hear from you.
Contact Us โ