Learn by building, in real languages
Master coding with hands-on practice
Codify is a multi-language coding platform where every exercise compiles, runs and is graded for real. Follow guided paths, earn badges, and level up one problem at a time.
PythonJavaSQLJavaScriptTypeScriptRubyCC++GoRustC#Swift
12 languages, one editor
Python, Java, SQL, JavaScript, TypeScript, Go, Rust, C, C++, C#, Ruby and Swift, all run and graded for real.
Guided learning paths
Work through modules of increasing difficulty. Each exercise you solve unlocks the next step on your path.
Professional toolchains
Graded by the tools you will actually use: Maven and JUnit, pytest, and the Node test runner.
XP, badges and exams
Earn experience and leveled badges, keep your streak alive, and prove your skills in timed exam mode.
Ready to write some code?
Jump straight in with a demo account. No setup, no installs, just your editor and the next exercise.
Start learning