For practical work, almost as important as a language itself is the ecosystem of libraries and tools around it. Haskell has a strong showing in this area.

The most widely used compiler, GHC, has been actively developed for over 15 years, and provides a mature and stable set of features.

► Compiles to efficient native code on all major modern operating systems and CPU architectures

► Easy deployment of compiled binaries, unencumbered by licensing restrictions

► Code coverage analysis

► Detailed profiling of performance and memory usage

► Thorough documentation

► Massively scalable support for concurrent and multicore programming

► Interactive interpreter and debugger