Programming Tutorials

Excellent Free Tutorials to Learn Crystal

Crystal is a general-purpose, concurrent, multi-paradigm, object-oriented programming language.

With syntax heavily inspired by the language Ruby, it is a compiled language with built-in static type-checking, but specifying the types of variables or method arguments is generally unneeded. This adds the benefit of a shallower learning curve.

The language also offers a powerful macro system, the compiler automatically checks for null references in compile time, a sleek concurrency model that uses green threads, as well as dedicated syntax to easily call native libraries.

Crystal is published under the Apache License 2.0.

Here’s our recommended tutorials to learn Crystal.


1. Language Introduction by Crystal

This course is targeted at novice Crystal programmers and conveys a basic understanding of the language’s core concepts. Prior programming experience is recommended, but not required. This course can help you learn your first programming language.

Read the tutorials


2. A First Look at Crystal Programming Language and its Ecosystem by Meraj Molla

Take your first steps with Crystal.

Read the tutorial


3. The Highs & Lows of Crystal – an Introduction to Crystal Lang by Robin Percy

Crystal Language claims to be as fast as C and as easy to learn as Ruby. Here, the author puts that assertion to the test and gives his opinion.

Read the tutorial


4. A very simple tutorial of the Crystal programming language by Andrew Garcia

The title of this tutorial is self-explanatory.

Read the tutorial


All tutorials in this series:

Free Programming Tutorials
ABAPAdvanced Business Application Programming
AdaALGOL-like programming language, extended from Pascal and others
AgdaDependently typed functional language based on intuitionistic type theory
AliceEducational language with an integrated development environment
ArduinoInexpensive, flexible, open source microcontroller platform
AssemblyAs close to writing machine code without writing in pure hexadecimal
AwkVersatile language designed for pattern scanning and processing
Bash‘Bourne-Again-SHell’ is both a shell and programming language
BASICFamily of general-purpose, high-level programming languages
CGeneral-purpose, procedural, portable, high-level language
C++General-purpose, portable, free-form, multi-paradigm language
C#Combines the power and flexibility of C++ with the simplicity of Visual Basic
ChapelParallel-programming language in development at Cray Inc.
ClojureDialect of the Lisp programming language
ClojureScriptCompiler for Clojure that targets JavaScript
COBOLCommon Business-Oriented Language
CoffeeScriptA very succinct programming language that transcompiles into JavaScript
CoqDependently typed language similar to Agda, Idris, F*, Lean, and others
CrystalGeneral-purpose, concurrent, multi-paradigm, object-oriented language
CSSCSS (Cascading Style Sheets) specifies a web page’s appearance
DGeneral-purpose systems programming language with a C-like syntax
DartClient-optimized programming language for fast apps
DylanMulti-paradigm language, supports functional & object-oriented programming
ECMAScriptBest known as the language embedded in web browsers
EiffelObject-oriented language
ElixirRelatively new functional language that runs on the Erlang virtual machine
ElmFunctional language that compiles to JavaScript
Emacs LispA dialect of the Lisp programming language.
ErlangGeneral-purpose, concurrent, declarative, functional language
F#General purpose, strongly typed, multi-paradigm language. Part of ML
FactorDynamic stack-based language
ForthImperative stack-based programming language
FortranThe first high-level language, using the first compiler
GDScript Godot’s built-in language for scripting and interacting with nodes
GoCompiled, statically typed programming language
GroovyPowerful, optionally typed and dynamic language
HackFor the HipHop Virtual Machine (HHVM), created as a dialect of PHP
HamlHTML Abstraction Markup Language
HaskellStandardized, general-purpose, polymorphically, statically typed language
HTMLHyperText Markup Language
IconHigh-level, general-purpose language
ImbaFull-stack language that compiles to performant JavaScript
JArray programming language based primarily on APL
JavaGeneral-purpose, concurrent, class-based, object-oriented, high-level language
JavaScriptInterpreted, prototype-based, scripting language
JuliaHigh-level, high-performance language for technical computing
KotlinStatically typed, general-purpose programming language with type inference
LabVIEWDesigned to enable domain experts to build power systems quickly
LaTeXProfessional document preparation system and document markup language
LessBackwards-compatible language extension for Cascading Style Sheets
LimboDesigned for applications running distributed systems on small computers
LispUnique features - excellent to study programming constructs
LogoDialect of Lisp that features interactivity, modularity, extensibility
LuaDesigned as an embeddable scripting language
MarkdownPlain text formatting syntax designed to be easy-to-read and easy-to-write
MoonScriptDynamic scripting programmer friendly language that compiles into Lua
NimStatically typed compiled systems language with syntax resembling Python
Objective-CGeneral purpose language which is a superset of C
OCamlGeneral-purpose, powerful, high-level language
OctaveHigh-level language, primarily intended for numerical computations
OpenCLOpen Computing Language
PascalImperative and procedural language designed in the late 1960s
PerlHigh-level, general-purpose, interpreted, scripting, dynamic language
PikeInterpreted, general-purpose, high-level, cross-platform, dynamic language
PHPPHP has been at the helm of the web for many years
PonyPony is an actor-model, capabilities-secure, high-performance language
PostScriptPage description language in electronic and desktop publishing
PrologGeneral purpose, declarative, logic programming language
PureScriptSmall strongly, statically typed language with expressive types
PythonGeneral-purpose, structured, powerful language
QMLHierarchical declarative language for user interface layout with a syntax to JSON
RDe facto standard among statisticians and data analysts
RacketPlatform for programming language design and implementation
RakuMember of the Perl family of programming languages
RubyGeneral purpose, scripting, structured, flexible, fully object-oriented language
RustIdeal for systems, embedded, and other performance critical code
ScalaModern, object-functional, multi-paradigm, Java-based language
SchemeGeneral-purpose, functional, language descended from Lisp and Algol
ScratchVisual programming language designed for 8-16 year-old children
SolidityObject-oriented, high-level language for implementing smart contracts
SQLAccess and manipulate data held in a relational database management system
Standard MLOne of the two main dialects of the ML language
SwiftPowerful and intuitive general-purpose programming language
TclDynamic language based on concepts of Lisp, C, and Unix shells
TypeScriptStrict syntactical superset of JavaScript, adding optional static typing
VStatically typed compiled language to build maintainable software
ValaObject-oriented language with a self-hosting compiler that generates C code
VHDLVery High Speed Integrated Circuit Hardware Description Language
VimLPowerful scripting language of the Vim editor
XMLSet of rules for defining semantic tags that describe the structure and meaning
Share this article

Share your Thoughts

This site uses Akismet to reduce spam. Learn how your comment data is processed.