An extended version of the plain TeX format, adding support for
bibliographies, tables of contents, enumerated lists, verbatim
input of files, numbered equations, tables, two-column output,
footnotes, hyperlinks in PDF output and commutative diagrams.
Eplain can also load some of the more useful LaTeX packages,
notably graphics, graphicx (an extended version of graphics),
color, autopict (a package instance of the LaTeX picture code),
psfrag, and url.

Homepage:
https://ctan.org/pkg/eplain
