Summary & Key Takeaways ​

• Simon Willison created an interactive SQLite Query Explainer tool.
• The tool helps users understand EXPLAIN and EXPLAIN QUERY PLAN outputs.
• It runs SQLite in Python via Pyodide and Web Assembly directly in the browser.
• AI (Fable) adds a layer of explanation to the query plan results.
• The tool aims to demystify complex SQLite query optimization.

Our Commentary ​

This is brilliant. I've stared at EXPLAIN outputs more times than I care to admit, wishing for a clearer explanation. Using Pyodide and WASM to run SQLite in the browser is already cool, but adding an AI layer for explanations? That's just next-level developer experience. I'm genuinely excited to try this out.