Education Tools

Kuakua.app is your AI-powered hub for mental health resources, mindfulness meditation, and positive psychology games. Take science-backed quizzes, play brain-boosting tasks, and unlock daily affirmations to feel happier, calmer, and more resilient—anytime, on any device.

Free browser-based science and math simulations from the University of Colorado Boulder. Over 150 interactive HTML5 simulations covering physics, chemistry, biology, earth science, and math — all usable directly in the browser with no account required.

Expert guides on low-risk investing strategies, ETFs, dividend stocks, and smart portfolio management. Trilingual content for conservative investors looking to grow wealth steadily.

Advanced graphing calculator implemented as an interactive web application. Plot functions, create tables, add sliders, animate graphs, and explore math visually.

Learn CSS Grid layout by tending a virtual garden. Water your carrots through 28 progressively challenging levels.

Animated visualizations of data structures and algorithms. Step through sorting, graph traversal, tree operations, and more at your own pace.

Visualize code execution step by step. See variables, stack frames, and heap objects for Python, Java, C, C++, and JavaScript.

Learn SQL by solving a murder mystery. Use SELECT, JOIN, WHERE, and more to query the database and catch the killer.

Watch sorting algorithms in action with animated bar charts. Compare bubble sort, quicksort, merge sort, and more side by side.

Computational knowledge engine that answers factual questions by computing answers from structured data. Covers math, science, geography, history, and more.

Free dynamic mathematics software for all levels of education. Combine geometry, algebra, spreadsheets, graphing, statistics, and calculus in one interactive tool.

Learn CSS Flexbox through a fun frog-themed game. Complete 24 levels to master flexbox properties like justify-content and align-items.

Learn CSS selectors by playing a dinner-themed game. Complete 32 levels from basic selectors to advanced pseudo-classes.

Interactive regex tutorial with step-by-step lessons. Learn regular expressions from basic patterns to advanced lookaheads.