This is a port of TeX live 2016 to Javascript. It creates PDF files from LaTeX code and supports packages.
This library supports both pdfTeX and bibTeX. However, the implementation of both differs slightly due to the nature of how you compile both.
To compile a file that does not have references (ie just pdftex input.tex), the code is as follows
let texlive = new TeXLive();
texlive.pdftex.compile(latex_source).then((pdf) => {
// pdf is a base64 encoded string you can use
});