Arcadeup

Simple online tests for reaction time, memory, and focus

Turn abstract probability and statistics concepts into visible, easy-to-understand content with fun interactive visual demos. Master core probabilistic thinking, and dive deep into classic theories including the Law of Large Numbers, Bayes' Theorem,

Real-time AI face swap for streaming & video calls, no GPU needed.

Track your daily energy consumption and replenishment, making energy management as simple as checking a dashboard.

Vast library of AI art prompts, plus image-to-prompt conversion to turn any reference image into usable keywords.

45,000+ AI prompts for image, video & PPT generation with semantic search — copy, paste, create.