Coding Interview University

It’s not a tool or software, but a carefully curated "prep guide for tech interviews at top companies." The author condensed months of full-time study that landed him a job at Amazon into a clear checklist, showing you exactly what to learn and in what order to become a software engineer.

It tackles the frustration of not knowing where to start or mindlessly grinding through endless coding problems. By filtering out the 25% of university CS topics that never show up in interviews, it helps you focus on the 75% that actually matter, replacing the guesswork of random video tutorials or expensive courses.

Self-taught developers aiming for backend or foundational software engineering roles; CS students feeling shaky on fundamentals and targeting top-tier tech companies; job seekers who need a structured way to review algorithms and data structures before interviews.

Following the weekly plan to systematically master data structures and algorithms during your free time; using it as a checklist 30 days before an interview to spot knowledge gaps; pairing it with LeetCode to practice exactly the topics that get asked most often.

A battle-tested "anti-waste" roadmap that clearly marks what you can skip, saving you dozens of hours; content is prioritized by importance and difficulty, packed with links to high-quality free resources; actively maintained with translations in over a dozen languages.

Zero setup—it’s purely a reading guide. You just need basic coding familiarity (variables, loops, functions), a willingness to commit a few hours daily, and a study planner to track your progress.