The first hit in Google for "latex mathml converter" is https://temml.org/ https://temml.org/ . The list of supported LaTeX constructs looks fine, but the outpu

The first hit in Google for "latex mathml converter" is https://temml.org/ https://temml.org/ . The list of supported LaTeX constructs looks fine, but the output… The example LaTeX converts to 67 lines of MathML. The vectors (arrows above B, l, E) are built like this: <mover> <mi>B</mi> <mo stretchy="false" style="transform:scale(0.75) translate(10%, 30%);">→</mo> </mover> But the hat above n is: <mover> <mi>n</mi> <mo stretchy="false" style="math-style:normal;math-depth:0;">^</mo> </mover> Markdown is great, but I can always take the HTML produced by a Markdown→HTML converter and edit it by hand, since HTML is human-readable and human-editable. MathML is neither. The output of MathML is also uglier than KaTeX’s, with wonky spacing. In Firefox, there’s an ugly space after all \d's (derivative sign). It’s better in Edgium, but there is still an ugly space in \d\vec{l}. If I need an intermediary tooling/format for math, I’d prefer beautiful LaTeX-esque output, and keep LaTeX code that wold be converted by KaTeX on the fly to whatever ugly HTML is required.