Tutorial
The Algorithms
https://the-algorithms.com/GitHub's largest open-source algorithm library
Category: Programming
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Big-O Cheat Sheet
https://www.bigocheatsheet.com/Know Thy Complexities!
Tech Interview Handbook
https://github.com/yangshun/tech-interview-handbookCurated coding interview preparation materials for busy software engineers
Top FAANG Interview Questions From LeetCode
https://docs.google.com/spreadsheets/d/1hzP8j7matoUiJ15N-RhsL5Dmig8_E3aP/edit#gid=1377915986Most asked questions at FAANG companies
Windows Terminal
https://github.com/microsoft/terminalWindows Terminal
Visual Studio Code
https://github.com/microsoft/vscodeVisual Studio Code
The System Design Primer
https://github.com/donnemartin/system-design-primerLearn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.
Build your own X
https://github.com/danistefanovic/build-your-own-xMaster programming by recreating your favorite technologies from scratch.
Computer Science courses with video lectures
https://github.com/Developer-Y/cs-video-coursesList of Computer Science courses with video lectures.
The Art of Command Line
https://github.com/jlevy/the-art-of-command-lineMaster the command line, in one page
Public APIs
https://github.com/public-apis/public-apisA collective list of free APIs for use in software and web development.
Open-source alternatives to SaaS
https://github.com/RunaCapital/awesome-oss-alternativesAwesome list of open-source startup alternatives to well-known SaaS products
Free for developers
https://free-for.dev/This is a list of software (SaaS, PaaS, IaaS, etc.) and other offerings that have free tiers for developers.
Coding Interview University
https://github.com/jwasham/coding-interview-universityA complete computer science study plan to become a software engineer.
Open Source Society University
https://github.com/ossu/computer-sciencePath to a free self-taught education in Computer Science!
Freecodecamp
https://www.freecodecamp.org/Learn to code. Build projects. Earn certifications.
Every Programmer Should Know
https://github.com/mtdvio/every-programmer-should-knowA collection of (mostly) technical things every software developer should know about
Free programming books
https://github.com/EbookFoundation/free-programming-booksFreely available programming books
Electronic References
https://csgordon.github.io/books.htmlCS textbooks in a variety of areas that are freely available online.
Best websites a programmer should visit
https://github.com/sdmg15/Best-websites-a-programmer-should-visitBest websites a programmer should visit