@simple-mark/math

TeX to a self-contained SVG string with MathJax 4, for SimpleMark. No DOM needed (works in Node), no fonts to load (glyphs are paths), so the SVG can go into HTML, onto a canvas or into a file.

import { renderMath, cachedMath } from '@simple-mark/math';

const { svg, error } = await renderMath('\\sum_{k=1}^n k = \\frac{n(n+1)}{2}', true);

• Errors come back as text ({ error: 'Missing close brace' }), never as broken output.

• Rarely used glyph ranges load on demand; bundlers make each a separate chunk.

• TeX packages that create links or HTML (\href, \style, raw HTML) and packages that load code are not included, so documents from anyone are safe to render.

• Formulas are drawn with MathJax's Latin Modern font (@mathjax/mathjax-modern-font). MathJax's SVG output still imports its default font (New Computer Modern, whose license in MathJax's version is unclear) through #default-font/*; when you bundle this package, alias that import to Latin Modern so it stays out:

  // vite.config.ts
  resolve: { alias: [{ find: /^#default-font\/(.*)$/, replacement: '@mathjax/mathjax-modern-font/mjs/$1' }] },

MIT. MathJax and its font come with their own licenses (Apache-2.0, as MathJax labels them); the font is a version of Latin Modern, under the GUST Font License.