mzc compiles MzScheme or MrEd programs (usually developed in DrScheme) to native code via C. In this role, mzc is now obsolete on x86, x86_64, and PowerPC platforms, where MzScheme supports just-in-time compilation of byte code to native code.

The mzc command-line tool also supports miscellaneous tasks, such as creating stand-alone executables, compiling C-implemented extensions, and creating .plt distribution bundles.

mzc is distributed as part of DrScheme and MzScheme.