Learn Krypton

A hands-on tour of the language, one short lesson at a time — from "Hello, World" to JSON and HTTP.

Core Language Track

34 lessons. Each is a complete, runnable program.

Hello World

Variables

String Operations

Arithmetic

Conditionals

While Loops

Functions

Print and kp

toInt and Number Conversion

Comparisons and Boolean Logic

Comma-Separated Lists

String Builder

Pairs

File I/O

Command Line Arguments

Environment (Scoped Key-Value Store)

Modules with go

Working with Lines

Pattern Matching with startsWith

Putting It All Together

Structs

Exception Handling

For-In Loops

String Interpolation

Match Statements

Lesson

Using the Standard Library

Maps (Key-Value Pairs)

Lambdas & Higher-Order Functions

Building JSON

HTTP Client

HTML in Krypton with htmk

Styling with kcss

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