WebRun HTTP Server

In-browser HTTP server

This module implements an HTTP Server directly in the browser using ServiceWorkers. It allows to implement lightweight full-stack development environments without any HTTP servers.

Features

• Code, execute and debug the whole stack in the browser. Even without internet connection.
• Your data and code don’t leave your browser
• Instant reproducable environment without installation
• Easily embeddable in your code
• Client and server-side code in the browser based on standards:
  • Use module imports for scripts
  • Send requests with fetch
  • Handle HTTP queries with the Request/Response API

UseCases

• Create rich documentations, tutorials, demos
• Embed in your rich application - in the new generation Notion, Airtable or Figma
• Deliver self-contained prototype environments to your clients

Demos

• WebRun: HTTP Service - an Observable Notebook with in-browser HTTP Server implementation
• A dynamic web site with a server-side API, a HTML page and a CSS file
• A virtual HTTP server exposing your local disk content. Allows to load JS modules!