Puzzlescript

Supports exporting ultra-HD PDFs, images, and source-level JSON data. Boasts a huge collection of online templates, flexible theme switching, and highly customizable resume modules. Craft a unique, polished, professional job-seeking resume with Catwa

Simple online tests for reaction time, memory, and focus

Open-source online English typing practice website equipped with professional data analysis and real-time feedback system.

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.