pandoc will turn markdown with TeX formatted equations into PDF or html (relying on tex and mathjax, respectively). It can also turn it into TeX if you need to

pandoc will turn markdown with TeX formatted equations into PDF or html (relying on tex and mathjax, respectively). It can also turn it into TeX if you need to tweak stuff. A number of other systems like Obsidian (for note taking) use markdown and integrate MathJaX or KaTeX to render TeX formatted equations.