Simon Willison 用 Claude Code 打造 LaTeX 渲染器，文档存进 URL 片段
LaTeX renderer
Simon Willison 用 Claude Code 写了个 LaTeX 渲染工具，代码直接存 URL 里，收藏链接就能分享文档，思路挺巧。
Simon Willison 受 Paul Ford 的 Tiny Little Office 启发，用 Claude Code（Opus 5.5 Extra）构建了一个 LaTeX 渲染工具。该工具把 LaTeX 代码存在 URL 的 #fragment 中，生成可直接收藏分享的链接，还支持针对 LaTeX 优化的自定义压缩字典。技术栈采用 MathJax 4.1.3、Pako 2.1.0、faster-latex 0.3.1 和 DOMPurify 3.4.16，并借助 iframe sandbox 防 XSS。无 fragment 时会显示编辑器，渲染视图同样可以收藏。
LaTeX renderer
Tool: LaTeX renderer Inspired by Paul Ford and Aboard Foundary's new web app Tiny Little Office , which provides a suite of web app content editors (a Word Processor, Outliner, Presentation Builder, Spreadsheet, Calculator, Drawing Tool, Diagram Maker, Animator, Calendar, and Trip Planner). Tiny Little Office's signature trick is to store all of the document data in the #fragment section of the URL, so every document created using it becomes a bookmarkable and shareable link. It also has an llms.txt file telling agents how to construct URLs that will render as documents. Claude used that file to generate this link to a deck that explains how the URL format works: Tiny Little Office inspired me to have Claude Code (Opus 5.5 Extra) build a similar tool that works with LaTeX. Here's the sequence of prompts I used: I want a tool where you can link to it with a fragment hash #code-here and it treats that code as LaTeX and renders it really effectively. It should also support a prefix which means the latex is compressed with a custom compression dictionary optimized for latex. Use the best available latex render library from a CDN (consider WebAssembly too). If loaded without a fragment hash show an editor you can paste latex into and then toggle to a "rendered" view. That rendered view should be bookmarkable. The #fragment view should let you switch to edit source too. Since it was working in my tools repo I told it to take inspiration from the <iframe sandbox="..."> mechanism used by my existing SVG in Markdown tool as protection against XSS risks: Safe from XSS? We could run in an iframe sandbox like we do on the SVG markdown render project I had it copy the Gist/URL loading feature from that tool as well: We should have an option to load latex from a URL (or gist) similar to the markdown SVG tool Here's an example link . The tool uses Pako 2.1.0 , MathJax 4.1.3 , faster-latex 0.3.1 , and DOMPurify 3.4.16 . Tags: latex , paul-ford , tools , urls , ai , generative-ai , llms
