M4 is a programming language recognized by GitHub Linguist and used with .m4, .mc.
Quick facts
What is M4
M4 is a programming language recognized by GitHub Linguist and used with .m4, .mc.
GitHub Linguist classifies M4 as a programming language, typically using extensions such as .m4, .mc.
File extensions:
Related languages
Frequently asked questions
M4 is a programming language recognized by GitHub Linguist and used with .m4, .mc.
Common extensions include .m4, .mc.
Sources & standards
Updated 2026-08-18
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