github-code Web Component
An experimental Web Component built with GPT-5.5 that embeds code from GitHub by converting blob URLs to raw content URLs and fetching specified line ranges. Displays line numbers without syntax highlighting.
Tool: github-code Web Component
Simon Willison’s Weblog
Subscribe
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:
Recent articles
sqlite-utils 4.0, now with database schema migrations - 7th July 2026
sqlite-utils 4.0rc2, mostly written by Claude Fable (for about $149.25) - 5th July 2026
Have your agent record video demos of its work with shot-scraper video - 30th June 2026
This is a beat by Simon Willison, posted on 7th July 2026.
github 189
web-components 26
gpt 128
Monthly briefing
Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.
Pay me to send you less!
Sponsor & subscribe
Disclosures
Colophon
©
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026