Source code

Programs as people write them: plain text in a programming language, read by a compiler or an interpreter. The extension says which language the text is in.

Formats

.C

C source code

Programs in the C language as plain text, with .h headers.

.JS

JavaScript source code

Scripts and modules for browsers, Node.js and other runtimes.

.PY

Python source code

Python programs and modules as UTF-8 text.