The CodeCrafters CLI is a command-line tool that allows you to run tests & view test results from your local machine.

If you haven’t installed the CLI yet, read this.

If you’ve already installed the CLI, you can check its version by running:

codecrafters --version

The latest available version can be found here.

To update the CLI, follow the OS-specific instructions below.


If you have the Homebrew package manager installed, the CodeCrafters CLI can be installed by running:

brew update
brew upgrade codecrafters-io/tap/codecrafters

If not, you can just re-run the install script:

curl | sh


Re-run the install script:

curl | sh


If you have a Linux distribution installed using WSL, just re-run the install script:

curl | sh