A massive collection of free programming eBooks from around the world, helping you save money and time by finding learning resources in one place.

A website offering interactive learning roadmaps to help developers plan their technical growth across fields like frontend, backend, AI, and more.

A comprehensive study roadmap for acing tech interviews at top companies, covering data structures, algorithms, and core CS concepts to save you from blind studying.

A comprehensive guide to system design, helping you ace big tech interviews with included flashcards.

This is a comprehensive collection of classic algorithms implemented in Python, suitable for students and job seekers to practice programming basics and prepare for technical interviews, with clear and runnable code.

A systematic Python learning guide with 100-day daily tasks, suitable for absolute beginners, covering basic syntax to practical projects.

A comprehensive Java interview and backend development guide covering basics, architecture, and AI apps to help you ace interviews and get promoted.

An open-source project collecting useful code snippets and programming articles to help you quickly solve development issues and improve skills.

This is a curated list of free computer science video courses from top universities globally, saving you search time and leading directly to the knowledge you want, covering basics to advanced topics.

Official OWASP quick-reference guides for developers, covering best practices for common application security topics like password storage and authentication.

An enhancement plugin for OpenAI Codex CLI that adds structured workflows and agent commands to make AI coding more organized and efficient.

An open-source repository collecting numerous data science interview questions and answers to help you prepare for tech interviews.