"Not Quite Perl" is a compiler for quickly generating PIR routines from Perl6-like code. The key feature of NQP is that it's designed to be a very small compiler (as compared with, say, perl6 or Rakudo) and is focused on being a high-level way to create compilers and libraries for virtual machines (such as the JVM, and MoarVM).

Unlike a full-fledged implementation of Perl 6, NQP strives to have as small a runtime footprint as it can, while still providing a Perl 6 object model and regular expression engine for the virtual machine.