Tool: github-code Web Component
Simon Willison’s Weblog
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7th July 2026
Tool
github-code Web Component
An experimental Web Component built using GPT-5.5 and the following prompt:
let's build a Web Component for embedding code from GitHub
It takes URLs like that, converts them to https://raw.githubusercontent.com/simonw/sqlite-ast/437c759129154f05296324a7f82aa1246340dd14/sqlite_ast/parser.py, then uses fetch() to fetch them and displays the specified range of lines - with line numbers, no syntax highlighting though
Show me a preview web browser so I can see your work
Here's what it looks like embedded on this page:
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This is a beat by Simon Willison, posted on 7th July 2026.
github 189
web-components 26
gpt 128
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