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FutureMe (FutureMe.org) lets you write an email to your future self—choose a delivery date anywhere from months to decades ahead. With over 20 million letters sent since 2002, it’s a unique tool for motivation, reflection, goal-setting, and a nostalgic peek into your past thoughts.

Neal.fun is a quirky online playground created by developer Neal Agarwal. It's packed with interactive web experiments and mini‑games — from crafting infinite elements in Infinite Craft to simulating internet overload in Stimulation Clicker. Playful, surprising, and occasionally thought‑provoking, it's a delightful trip back to the creative spirit of early web silliness.

16Personalities is a free online personality testing platform using the NERIS model—a hybrid of MBTI-style typology and the Big Five traits. In about 10 minutes, users complete a questionnaire and receive one of 16 distinct personality types, represented with detailed profiles and optional premium upgrades.