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