Learn Rust, one checkpoint at a time

5 guided lessons, 15 steps. You write the code in a live editor and each checkpoint ticks itself the moment the real compiler agrees with you — no quizzes, no sign-up, nothing to submit.

Rust is compiled ahead of time, so mistakes surface before anything runs. That is exactly what makes it a good language to learn interactively: the feedback is immediate and precise.

1. Lesson 1Start here6 min · 3 steps

   Your first Rust program

   Write a main function, print with a macro, and understand what the compiler did.

2. Lesson 2Core idea10 min · 3 steps

   Ownership without the fear

   See a move happen, break the program on purpose, then fix it two different ways.

3. Lesson 3Core idea10 min · 3 steps

   Make the borrow checker your friend

   Shared borrows, one mutable borrow, and why the rule exists at all.

4. Lesson 4Going further12 min · 3 steps

   Structs, traits and behaviour

   Model data with a struct, give it behaviour with a trait, print it nicely.

5. Lesson 5Going further12 min · 3 steps

   Handling things that can fail

   Option, Result and the `?` operator — errors as ordinary values.

Prefer to read finished programs instead? Browse the runnable examples.