Zener Card Test
First introduced in the 1930s, the Zener card deck became one of the most widely recognized tools in early parapsychology research. This privacy-first recreation uses the classic five-symbol design across 25 randomized trials, allowing participants to compare their results against statistical chance while contributing anonymously to community statistics.
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No accounts, cookies, analytics, callsigns, emails, or browser fingerprinting. Personal history stays on your device. Community stats store only session key, score, total, and timestamp.
Each run presents 25 independent trials. For every trial, one of the five classic Zener symbols is selected at random. The expected score by chance is 5 correct guesses out of 25.