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Learn how Git really works — visually. Build real Git commands by tapping (no typing) and watch a live commit graph branch, merge, and rebase in real time. A guided 17-lesson curriculum takes you from your first commit to untangling diverged branches, plus Practice, Sandbox, and a Daily puzzle.

by Mercutio

A collection of interactive JavaScript projects showcasing DOM manipulation, game logic, and core programming concepts. Features number guessing games, modal components, banking apps, and more educational demos.

by rahulgotrekiya

Premium dominoes with the warmth of a back-porch table. Play All Fives, All Threes, Fives & Threes, Bergen, Block, Draw, Matador, Mexican Train, or Chicken Foot against a thoughtful AI — or pass the device for 2–4 friends, a four-player free-for-all, or 2v2 partners. Sculpted tiles, a daily challenge, leaderboards, achievements, and an interactive tutorial that teaches real strategy.

by Mercutio

Drag-and-drop digital logic circuit simulator. Build circuits with AND, OR, NOT, flip-flops, LEDs, and more.

by Kazuhiko Arase