Welcome to D

Welcome to the interactive tour of the D Programming language.

The tour gives an overview of this powerful and expressive language which compiles directly to efficient, native machine code.

What is D?

D is the culmination of decades of experience implementing compilers for many diverse languages and has a unique set of features:

  • high level constructs for great modeling power
  • high performance, compiled language
  • static typing
  • direct interface to the operating system API's and hardware
  • blazingly fast compile-times
  • memory-safe subset (SafeD)
  • maintainable, easy to understand code
  • gradual learning curve (C-like syntax, similar to Java and others)
  • compatible with C application binary interface
  • limited compatibility with C++ application binary interface
  • multi-paradigm (imperative, structured, object oriented, generic, functional programming purity, and even assembly)
  • built-in error detection (contracts, unittests)

... and many more features.

About the tour

Each section comes with a source code example that can be modified and used to experiment with D's language features. Click the run button (or Ctrl-enter) to compile and run it.


This tour is open source and we welcome pull requests making this tour even better.

rdmd playground.d