Running Python ASGI apps in the browser via Pyodide + a service worker

📰 Simon Willison's Blog

Learn how to run Python ASGI apps in the browser using Pyodide and a service worker, enabling new possibilities for web development

advanced Published 30 May 2026
Action Steps
  1. Build a Python ASGI app using a framework like Datasette
  2. Run the app using Pyodide in WebAssembly
  3. Configure a service worker to handle requests and responses
  4. Test the app in the browser to ensure proper functionality
  5. Apply optimizations to improve performance and security
Who Needs to Know This

Web developers and DevOps teams can benefit from this approach to run Python applications in the browser, improving performance and reducing server load

Key Insight

💡 Pyodide enables running Python code in WebAssembly, allowing for new use cases like running ASGI apps in the browser

Share This
🚀 Run Python ASGI apps in the browser with Pyodide + service worker!

Key Takeaways

Learn how to run Python ASGI apps in the browser using Pyodide and a service worker, enabling new possibilities for web development

Read full article → ← Back to Reads

Related Videos

How to Connect Lovable to Supabase | Step by Step 2026
How to Connect Lovable to Supabase | Step by Step 2026
Tutorial Stack
What is Telematics Explained with Examples
What is Telematics Explained with Examples
VLR Software Training
6 NEW Bolt.new Updates You Probably Missed
6 NEW Bolt.new Updates You Probably Missed
Conor Martin
Build This AI App in 5 Minutes and 4x Your Work Output
Build This AI App in 5 Minutes and 4x Your Work Output
Conor Martin
I Built the AI App From the Super Bowl Ad (It Actually Works)
I Built the AI App From the Super Bowl Ad (It Actually Works)
Conor Martin
Rork Max - A new era for IOS apps
Rork Max - A new era for IOS apps
Conor Martin