latex-to-html converts a subset of latex to html. It renders formulas as vector graphics, so that they look exactly as they would in a pdf.
Example

Because latex-to-html renders math formulas using pdflatex, it supports the same math formulas as latex. Inline math must be delimited by $ ... $ and display math must be of the form

\begin{equation}
  \label{....}
  ...
\end{equation}

where the label is optional. Outside of math environments, only a subset of tex/latex is supported:

• \title{...}
• \section{...}
• \subsection{...}
• \begin{itemize} \item ... \item ... \end{itemize}
• \begin{enumerate} \item ... \item ... \end{enumerate}
• Some hard-coded theorem-like environments (those usually declared with \newtheorem):
  • theorem
  • proposition
  • definition
  • lemma
  • remark
  • corollary
  • example
• \begin{proof} ... \end{proof}
• \label{...}, \ref{...} and \eqref{...}
• \emph{...}, \textbf{...}, \textit{...}

There is also basic support for \bibliography.

Latex-to-html ignores the lines directly after a line containing the following comment:

% LATEX_TO_HTML_IGNORE

This is useful in case a tex file is also used with pdflatex directly to generate a pdf file.

For example, latex-to-html does not support the enumitem package. To use it for the generated pdf output anyway, the package can be included as follows:

% LATEX_TO_HTML_IGNORE
\usepackage{enumitem}

The appearance of numerals in an enumeration for the pdf output (but not the webpage) can then be changed like so:

\begin{enumerate}
  % LATEX_TO_HTML_IGNORE
  [label={(\roman*)}]
  \item
    ...
  \item
    ...
\end{enumerate}

Make sure to install all dependencies first. latex-to-html depends on cargo, pdflatex, pdfcrop and pdf2svg. On Debian or Ubuntu, these dependencies can be installed as follows:

sudo apt install cargo texlive texlive-extra-utils pdf2svg

To download and install latex-to-html to ~/.cargo/bin, run the following:

cargo install latex-to-html

You can now either add $HOME/.cargo/bin to your PATH variable or simply specify the full path when you execute latex-to-html: ~/.cargo/bin/latex-to-html.

Assuming you have a doc.tex and a doc.bib file, run the following:

latex-to-html doc.tex doc.bib out/

This may take a while on the first run, but subsequent runs will be much faster. To view the generated document, open out/index.html in your browser.