Open source. Open possibilities.

A curated collection of technical resources and learning materials for software developers, covering algorithms, data structures, security, architecture, career advice, and more.

A curated collection of free resources for learning system design concepts and preparing for interviews, covering core concepts, networking, APIs, databases, caching, distributed systems, architectural patterns, tradeoffs, and interview problems.

Papers We Love is a community-driven directory curating notable academic computer science papers for reading and discussion, with links to papers, chapters worldwide, and supplementary reading resources.

OSSU is a free, self-taught Computer Science curriculum built from top online courses, books, and a global Discord community, aiming to provide a complete CS education comparable to an undergraduate degree.

A curated, opinionated collection of full-stack learning resources for software engineers, covering must-read books and articles, engineering principles, and dozens of topics from algorithms and API design to security, SRE, and career growth.

Community-driven interactive roadmaps, guides, best practices, and questions that help developers plan and advance their learning across programming, cloud, AI, DevOps, and more.

An interactive visual learning platform designed to make algorithms and data structures easy to understand through step-by-step animations, custom inputs, and playback controls.

A curated list of computer science courses with video lectures, covering algorithms, AI, databases, operating systems, and more.