Simon Willison has converted Mozilla's MDN browser compatibility data into a lightweight SQLite database, making it easily accessible via GitHub CDN with open CORS headers. The project utilizes AI-assisted coding tools like Claude Code and GPT-5.5 to generate the conversion scripts and automate the deployment workflow.
Background
Mozilla maintains the comprehensive mdn/browser-compat-data repository, which tracks web API support across different browsers. Accessing this large JSON-based dataset efficiently for local analysis or web applications often requires significant processing overhead.
- Source
- Simon Willison
- Published
- Jun 25, 2026 at 07:59 AM
- Score
- 6.0 / 10