10 GitHub repositories to make you a better developer.

1. The Book of Secret Knowledge. 78k

A collection of inspiring lists, manuals, cheat sheets, blogs, tips, one-liners, command-line tools, web-based tools, and much more.

2. Coding Interview University. 234k

The items listed here will prepare you for a technical interview at nearly any software company, including giants like Amazon, Facebook, Google, and Microsoft.

3. Open Source Society University, Computer Science. 124k

The path to free self-taught computer education! The OSSU (Open Source Society University) program is a comprehensive computer education journey using online resources.

4. The Art of Command Line. 110k

Command-line mastery is a skill often overlooked or deemed esoteric, but it enhances your flexibility and productivity as an engineer. Here is a selection of notes and tips on using the command line.

5. 30 Seconds of Code. 103k

Short JavaScript code snippets for all your development needs:

6. freeCodeCamp. 353k

The number 1 repository in terms of star count is that of freeCodeCamp. It's their open-source codebase and curriculum. Learn to code for free.

7. You Don’t Know JS. 159k

These are a series of books that delve deep into the fundamental mechanisms of the JavaScript language. You can read these books online here in their entirety and for free.