AiTechWorlds
Master data structures and algorithms with the best GitHub repositories — coding interview prep, LeetCode patterns, and language-agnostic implementations. Free, open-source, and interview-focused.
12 repositories
jwasham
A complete computer-science study plan
A multi-month self-study plan covering everything needed to become a software engineer, focused on interviews.
What you get
What you'll learn
Best for: Self-taught developers targeting big-tech interviews.
yangshun
Curated interview prep, the practical way
A curated handbook of coding-interview tips, algorithm cheatsheets, and behavioral guidance.
What you get
What you'll learn
Best for: Candidates who want a focused, no-fluff prep plan.
labuladong
Algorithm patterns and frameworks
A widely used set of algorithmic thinking frameworks and pattern-based LeetCode solutions.
What you get
What you'll learn
Best for: LeetCode grinders who want patterns, not memorization.
trekhleb
DSA with explanations in JavaScript
Algorithms and data structures in JavaScript with Big-O notes and links.
What you get
What you'll learn
Best for: JS/Node devs preparing for interviews.
kamyu104
Optimal LeetCode solutions
A large collection of optimal LeetCode solutions in multiple languages with complexity.
What you get
What you'll learn
Best for: LeetCode practitioners checking solutions.
algorithm-visualizer
See algorithms run, step by step
An interactive in-browser tool that visualizes how algorithms execute.
What you get
What you'll learn
Best for: Visual learners struggling with abstract DSA.
TheAlgorithms
Algorithms implemented in Python
A huge community collection of algorithm and data-structure implementations in Python.
What you get
What you'll learn
Best for: Python learners drilling DSA.
neetcode-gh
Solutions to the NeetCode problem set
Community solutions to the popular NeetCode list of essential interview problems.
What you get
What you'll learn
Best for: Candidates following the NeetCode roadmap.
TheAlgorithms
Algorithms implemented in JavaScript
A community collection of algorithms and data structures implemented in JavaScript.
What you get
What you'll learn
Best for: JS developers learning DSA.
donnemartin
Coding challenges in notebooks
A set of interactive coding-interview challenges with solutions and unit tests in notebooks.
What you get
What you'll learn
Best for: Learners who like notebook practice.
krahets
Animated, illustrated DSA book
A beautifully illustrated data-structures-and-algorithms book with multi-language code.
What you get
What you'll learn
Best for: Visual learners of DSA.
neetcode-gh
The famous Blind 75 problem set
Community solutions covering the Blind 75 — a focused list of must-do interview problems.
What you get
What you'll learn
Best for: Time-pressed interview candidates.
jwasham/coding-interview-university is the most comprehensive — a complete self-study plan that took its author from beginner to a software engineering role.
Follow coding-interview-university for structure, then drill patterns from neetcode-style and labuladong algorithm repos.
Yes — many start from the basics and build up, with clear study plans and progress checklists.
Pair these with our learning roadmaps, free courses, and notes library.
