A while ago I optimized KeenType, which is a Java-based fork of NTS that can convert TeX commands into SVG images: https://github.com/DaveJarvis/keentype https

A while ago I optimized KeenType, which is a Java-based fork of NTS that can convert TeX commands into SVG images: https://github.com/DaveJarvis/keentype https://github.com/DaveJarvis/keentype The following tutorial shows the real-time rendering speed of KeenType within my text editor, KeenWrite: https://youtu.be/vgyYXwwF_lc?list=PLB-WIt1cZYLm1MMx2FBG9KWzPIoWZMKu_&t=12 https://youtu.be/vgyYXwwF_lc?list=PLB-WIt1cZYLm1MMx2FBG9KWzP... KeenWrite can produce web pages from Markdown with the TeX commands included as either as plain TeX macros (usable by JavaScript TeX renderers) or as pre-rendered SVG elements (no JavaScript required).