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"Learn Git Branching" is the most visual and interactive way to learn Git on the web; you'll be challenged with exciting levels, given step-by-step demonstrations of powerful features, and maybe even have a bit of fun along the way.

Learn vim without enduring boring text only tutorials. vim.so gets you the muscle repetition needed to master vim quickly using interactive exercises. Vim adds code editing super powers to your editor of choice. Learn vim fast today!

A comprehensive guide for exploring and learning about the theory, science, and perception of color and contrast.

Leap into the world of CSS flexbox with a fun, interactive game. Help the frog reach its lily pad while learning and mastering the intricacies of CSS flexbox. With varying levels of difficulty, this game is perfect for both beginners and experts. It's not just about winning, it'…

Zoom Earth is an interactive weather map of the world and a real-time hurricane tracker. View live satellite images of the latest storms and wildfires. Explore weather forecast maps of wind, rain, temperature, pressure and more for your location.

It is a chat bot that enables users to interact with PDF documents in a more efficient and fun manner. It uses cutting-edge AI technology to help users read through and extract valuable insights from their PDFs. It is multilingual, requires no sign-up and free

Explore live radio by rotating the globe. Over 8000 stations.

This harm reduction tool helps to detect dangerous and lethal interactions in substance combinations.

Use our collaborative editor to create motion graphics that respond to different states and user inputs. Then load your animations into apps, games, and websites with our open-source runtimes.

Sign Learner is a free browser extension to help you learn and retain sign language whenever and wherever you go online. Browse the internet and learn sign language by hovering over highlighted words to see the corresponding sign in either ASL or BSL. Sign Learner makes it easy …

CryptoZombies is an interactive code school that teaches you to write smart contracts in Solidity through building your own crypto-collectables game. The course is beginners friendly and is available for free (no strings attached!).

Red Blob Games is a website that offers interactive visual explanations of math and algorithms, using motivating examples from computer games. The website has been curating game development articles since 1990 and provides free access to all articles without any signup or ads. T…

Rooms lets you create games + interactive experiences from your browser. No download necessary. Every thing you see is editable and scriptable. And best of all, it’s free :-).

The Octos app allows you to either enjoy live interactive wallpapers made by the community or build your own. Full mouse and keyboard support make interactions seamless. Navigate its user-friendly interface and check out the complete set of guides and resources available.

Expand your vocabulary with a daily email containing definitions 📚, pronunciations 🗣️, etymologies 📜, and examples ✍️!

View a fun fact for the current day. Reload to see a new fun fact.

The future of the car lies in the interface that people interact with, so Auto Interfaces was created to share the state of the industry. We built this tool for the curious; to show what's happening on the forefront of the modern in-car digital interaction.

Online web tool for calculating the centroid of triangle and polygon. You can also calculate the centroid of multiple points easily by entering multiple points. The input in taken in x and y coordinates of cartesian system. Calculate with just one click.

Mastering the guitar fretboard is hard. Memorizing notes, intervals, triads, chords etc. is really important to progress but also really boring and hard to stay on top consistently. Fretboard Fly turns it into a fun game, so you become a better player.