The docgenerator-gem create documents with export feature as LaTeX, HTML, Creole (a common wiki markup, see http://www.wikicreole.org ), conTeXt (only rudimentory), plain text (not very good supported) and Wiki-markup like Wikimedia (no support any longer). This gem extends the docgenerator-gem with a Creole-parser.

kramdown-service gem - kramdown HTTP JSON API service (convert markdown to HTML or LaTeX)

Purge entries from a BibTeX file never cited by a given LaTeX file.

Sort the entries of a BibTeX (LaTeX bibliography) .bib file.

erbtex will act just like pdflatex except that it will process ruby fragments between {: and :} markers, greatly expanding the ability to generate automated TeX and LaTeX documents.

Lbt is a build tool for LaTeX. It is useful for big documents.

Asciidoctor Plugin that converts latexmath using Mathjax 3

Fast Implementation of Gruber's Markdown in C With Latex Support

Now you can parse your LaTeX formules with Katex and let the client-side worry only with stylesheets.