"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.

Why, even in peacetime, do friends become enemies? And why, even in wartime, do enemies become friends? This simulation attempts to use game theory to explain our epidemic of distrust – and how we can fix it!

Find a text or message in your history, without remembering the exact wording: Pinbot finds the closest sentence by meaning, using the latest developments in AI. Your privacy is guaranteed: your data never leave your device.

Postgres Playground is a free, hands-on tutorial to learn Postgres. Tutorials include the fundamentals, like shell interactions, indexes, and transactions. Advanced tutorials include performance analysis, JSON, PostGIS, and window functions.

For every student, every classroom. Real results. We’re a nonprofit with the mission to provide a free, world-class education for anyone, anywhere.

Quickly browse the history of any GitHub file by replacing `github.com` with `github.githistory.zyx` in any file URL. Based on Prism, jsdiff and Night Owl

Rerun is an SDK for logging computer vision and robotics data paired with a visualizer for exploring that data over time. It lets you debug and understand the internal state and data of your systems with minimal code. It’s built in Rust to run fast everywhere.

We publish activity books containing exciting puzzles and brainteasers every day! Our books are free to download and share.

Meta Tags is a tool to debug and generate meta tag code for any website. With Meta Tags you can edit and experiment with your content then preview how your webpage will look on Google, Facebook, Twitter and more!

Listen to one album every day. All selected from the book 1001 Albums You Must Hear Before You Die. Randomly generated to your own personal page with your own personal ratings and statistics.

LIDA is a tool to automatically explore data, generate visualizations and infographics from data using large language models like ChatGPT and GPT4

Learn for free.

The Perspective is a website designed to open minds by showing readers what they’re missing due to echo chambers and filter bubbles. It displays two sides of current events, historic and classic debates, employing design and psychology to make it easier to consider ideas that ar…

I read the events for a date on wikipedia, pick one and pass the context to an AI image generator. You have to guess what event the AI is trying to depict!

hiSHtory stores your shell history in context (what directory you ran the command it, whether it succeeded or failed, etc). This is synced to all your computers, so from your laptop you can now easily find that complex bash pipeline you wrote on your server.

Wiki2map is an innovative and revolutionary way to explore Wikipedia interactively and visually. With its unique features, you can navigate through the vast amount of knowledge available on Wikipedia and discover new information, ideas, and connections.

ImageBind is an AI model that binds data from 6 modalities without explicit supervision. It recognizes relationships between images, video, audio, text, depth, thermal and IMUs to advance AI analysis.

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

MySQL for Developers is a free 64 lesson video course that we created for developers who want to strengthen their MySQL and database skills in a way that’s relevant to their everyday work: application development.

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!