MiKTeX can be built on Windows and Unix-like systems.

Get the source code

GitHub

MiKTeX source code is available on GitHub:
https://github.com/MiKTeX/miktex/

Tarball

If you prefer a compressed tar archive, you can download it here:

Date: 11/18/2019
File name: miktex-2.9.7250.tar.xz
Size: 24.49 MB
SHA-256: dcdb921bff0dd4566a58e9ac7395b672d87f2ebdfb360bc528f8869d5f09e1db
Download
Fork me on GitHub