Summary & Key Takeaways ​

• Simon Willison created simonw/browser-compat-db to convert MDN data.
• The project transforms browser compatibility data into a SQLite database.
• AI (Claude Code for web, Codex Desktop) assisted in script generation and workflow.
• A GitHub Actions workflow builds and publishes the database to a db orphan branch.
• The resulting ~66MB SQLite database is available via GitHub CDN with open CORS.
• It can be explored directly with Datasette Lite.

Our Commentary ​

Simon Willison is a wizard. This is such a clever way to make browser compatibility data more accessible and queryable. The use of AI for scripting and GitHub Actions for hosting is a fantastic example of practical, modern tooling. I love seeing these kinds of open-source utility projects.