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openclaw - 💡(How to fix) Fix [Feature Request] Integrate KaTeX/MathJax for LaTeX Mathematical Formula Rendering in WebUI [1 participants]

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openclaw/openclaw#62118•Fetched 2026-04-08 03:08:49
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Currently, the WebUI renders LaTeX mathematical expressions (e.g., those wrapped in $ or $$) as raw text strings (such as \rightarrow or \text{...}). This creates significant visual noise and reduces readability when the agent provides structured logical derivations, mathematical proofs, or performance metrics.

Proposed Solution: Integrate a lightweight mathematical rendering library, such as KaTeX or MathJax, into the WebUI frontend.

  • The renderer should automatically scan the response content for LaTeX delimiters ($ for inline, $$ for block).
  • Convert these delimiters into formatted SVG or HTML mathematical expressions in real-time.

Expected Benefit:

  • Improved Readability: Users can perceive complex formulas, logical arrows, and mathematical notations intuitively.
  • Professionalism: Aligns the visual output with the high-level logical reasoning capabilities of the underlying LLMs.
  • Consistency: Ensures a seamless experience across different client interfaces where LaTeX is already standard.

Example:

  • Current: $\rightarrow$ -> rendered as $\rightarrow$
  • Expected: → (a clean, rendered arrow)

extent analysis

TL;DR

Integrate a lightweight mathematical rendering library like KaTeX or MathJax into the WebUI frontend to render LaTeX expressions as formatted mathematical expressions.

Guidance

  • Identify the most suitable mathematical rendering library (KaTeX or MathJax) based on performance and compatibility requirements.
  • Implement automatic scanning of response content for LaTeX delimiters ($ for inline, $$ for block) to trigger rendering.
  • Ensure the chosen library can convert LaTeX expressions into formatted SVG or HTML in real-time for seamless user experience.
  • Test the integration with various LaTeX expressions to verify correct rendering and identify any potential issues.

Example

// Example using KaTeX
const katex = require('katex');
const latexExpression = '\\rightarrow';
const html = katex.renderToString(latexExpression);
// Replace the raw LaTeX expression with the rendered HTML in the WebUI

Notes

The choice between KaTeX and MathJax may depend on specific requirements such as performance, compatibility with existing libraries, and the range of LaTeX features needed.

Recommendation

Apply a workaround by integrating KaTeX, as it is often considered more lightweight and performant compared to MathJax, making it a suitable choice for real-time rendering in the WebUI.

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