Hey everyone 👋 Excited to launch Codend today! I built this because I kept noticing a gap: most people learn to code through tutorials and bootcamps that teach syntax and frameworks, but skip the actual computer science underneath algorithms, how memory works, how the network stack fits together, why some queries are fast and others aren't. That knowledge is usually locked behind a 4-year degree or a stack of dense textbooks. Codend is my attempt to make real CS fundamentals accessible and structured, without dumbing them down. Six courses so far (Algorithms, Computer Architecture, Networks, Databases, OS, and Design Patterns), with more on the way plus daily coding challenges to keep the skills sharp between lessons. Would love your feedback especially on what CS topics you wish you understood better, or what almost stopped you from signing up. I'll be here all day answering questions!

Codend

Master computer science through real, structured courses

Master computer science through real, structured courses