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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →You can convert a LaTeX math expression to a scalable SVG in a browser by using MathJax with TeX input and SVG output. For an image that works on its own, configure MathJax’s SVG font cache as local, wait for the asynchronous render to finish, then download the resulting markup as an .svg file. Keep the original TeX too: the SVG’s glyphs are paths, not editable or copyable text.
What this workflow does—and what it does not
MathJax can take TeX math input and produce SVG output in a browser. This is a workflow for rendering equations or other supported math expressions, not for compiling an arbitrary complete LaTeX document. The LaTeXLive documentation, for example, distinguishes formula entry from full-document editing: LaTeXLive documentation.
“Browser-local” describes where rendering can happen; it does not guarantee offline operation. The browser still needs access to MathJax and any required font data or extensions. A hosted editor that offers SVG export is not, by that fact alone, an offline or locally installed tool.
Choose SVG for a vector image, and keep the source
MathJax documents CommonHTML, SVG, and serialized MathML as output formats. SVG is the natural choice when the result is meant to be placed or edited as a vector image; CommonHTML is browser-oriented layout, while MathML represents structured mathematical markup. MathJax describes SVG as relatively self-contained and suitable to save as an independent image, although some circumstances use CSS: MathJax SVG Support and MathJax Output Formats.
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SVG output represents glyphs as paths rather than text characters, so a viewer cannot copy the equation out of the SVG as ordinary text. Store the original TeX alongside the file; it remains the editable source and helps preserve copyability. If semantic processing or accessibility matters, retaining TeX or MathML as well as the image is useful.
Configure MathJax for standalone equation files
Use MathJax’s TeX input component with its SVG output processor. The output-format documentation describes selecting output processors through component configuration. For exportable, independent files, set svg.fontCache to local. MathJax then puts the path definitions inside each equation’s SVG. A global cache can reduce repeated path data on a page, but an individual image may rely on shared page-level elements instead. See MathJax SVG Output Processor Options.
After rendering, inspect the exported SVG markup: local path definitions should be present in the file itself, rather than referenced only from shared definitions elsewhere in the page. This matters when an SVG is opened or embedded independently.
Browser-side conversion and download workflow
- Set up the renderer. Load a MathJax configuration that enables TeX input and SVG output, with
svg.fontCacheset tolocalfor standalone exports. - Accept a math expression. Treat the input as a formula, not a full LaTeX source document. Decide which TeX commands and extensions the app will support.
- Render and wait. Use MathJax’s asynchronous conversion flow and wait for its promise to resolve before enabling export. The official interactive example uses
tex2svgPromise(); extensions or font data may need to load before conversion completes: MathJax interactive TeX-to-SVG demo. - Export the generated SVG. Once conversion has completed, obtain the generated SVG markup and use the browser’s download mechanism to save it with an
.svgfilename. This is implementation guidance: MathJax documents rendering and SVG output, but the exact download code depends on the app. - Keep the TeX source. Save or copy the input separately with the SVG so you can edit the equation or provide a text-based representation later.
Check offline use instead of assuming it
MathJax’s interactive demo notes that extensions and font data can load asynchronously. That makes successful rendering in a browser different from proof that a page works without a network connection. To check a particular implementation, disconnect from the network and test the actual expressions it needs to handle, including any extensions and fonts. The cited documentation does not certify a specific offline package or guarantee that every command works offline.
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Also test the exported file in its intended destination. MathJax documents SVG’s suitability as an independent image, but the available documentation does not establish that every expression will appear identically in every vector editor or downstream application.
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