Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

compiler

A program that translates source code into machine code ahead of time.

A compiler translates a program from a source language into a target language, for C++ ultimately into machine code for one instruction set and operating system, before the program runs.