I have considered switching from MathJax to KaTeX for my MathJax-based projects such as TeXMe and MathB but I had to decide against doing so because MathJax supports commands like `\label`, `\eqref`, `\notag`, etc. and environments like `align`, `multiline`, etc. KaTeX does not support them, so switching to KaTeX would break many existing documents written using TeXMe or MathBin. I am going to stick with MathJax for now.

Here are some useful resources:

- MathJax: Supported TeX/LaTeX commands
- KaTeX: Supported Functions