Compilers

There are currently 3 actively developed major D compilers:

DMD » Digital Mars D compiler The reference implementation of D. DMD on GitHub DMD Portal »

GDC » GCC D compiler Fast and open source. GDC on GitHub GDC Portal »

LDC » LLVM D compiler Fast and open source. LDC on GitHub LDC Portal »

Which compiler should I use?

If you're a beginner DMD is the recommended choice, as it is the implementation closest to the D Language Specification. Otherwise it depends on what you need, what platforms you intend to develop for, and your personal preferences. GDC and LDC both generate substantially faster binaries than DMD.

Comparison

	DMD	GDC	LDC
Installation	Automatic	?	?
Platforms	Linux / Mac / FreeBSD / Win	Linux / Mac / FreeBSD / Win	Linux / Mac / FreeBSD / Win
Architectures	i386, amd64	i386, amd64	i386, amd64
License	?	?	?
Features	?	?	?