_{⚡️ Edge Runtime - Modern Runtime Infrastructure for the Web Platform ⚡️}

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Documentation • CLI • Issues • Website

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🚀 Overview

Edge Runtime is a high-performance, standards-compliant runtime environment for modern web applications. Built by KhulnaSoft, it provides a complete implementation of Web APIs that run seamlessly across edge networks, serverless platforms, and traditional server environments.

The runtime enables developers to write once and deploy anywhere, with full compatibility for:

• Web Standards APIs (Fetch, Streams, Web Crypto, URL, etc.)
• Edge Computing (Cloudflare Workers, Vercel Edge Functions, Deno Deploy)
• Server Environments (Node.js, Bun, traditional servers)
• Testing & Development (Jest, Vitest, local development)

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🧩 Core Features

Component	Description
⚙️ Web Standards API	Complete implementation of Fetch, Streams, Web Crypto, and more
🌍 Edge-Native	Optimized for edge computing with minimal cold starts
🔧 Modular Primitives	Composable building blocks for custom runtime environments
🧠 VM Context	Secure execution environment for untrusted code
🍪 Cookie Management	Standards-compliant cookie handling for web applications
🔍 Request/Response	Full-featured HTTP handling with Web API compatibility
📝 String Formatting	printf-style formatting utilities for logging and debugging
🧪 Testing Tools	Jest environment and matchers for comprehensive testing

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🧰 Quick Start

# Install the Edge Runtime CLI globally
npm install -g runtime-edge

# Or add to your project
npm install runtime-edge

# Development
runtime-edge dev                    # Start development server
runtime-edge build                  # Build for production

# Testing
runtime-edge test                   # Run tests in Edge Runtime

Basic Usage:

import { EdgeRuntime } from 'runtime-edge'

// Create runtime instance
const runtime = new EdgeRuntime()

// Execute Edge Functions
const result = await runtime.evaluate(`
  // Web APIs available: fetch, Request, Response, URL, etc.
  const response = await fetch('https://api.example.com/data')
  return await response.json()
`)

console.log(result)

With Custom Server:

import { createServer } from 'runtime-edge'

const server = createServer({
  // Your Edge Runtime configuration
  port: 3000,
  handler: async (request) => {
    return new Response('Hello from Edge Runtime!')
  },
})

server.start()

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🌐 Package Ecosystem

Package	Version	Description
runtime-edge	v4.0.0	Main runtime package with CLI and server functionality
@runtime-edge/primitives	v4.0.0	Core Web API primitives (Fetch, Streams, Crypto, etc.)
@runtime-edge/vm	v4.0.0	Secure VM for code execution in Web Standard contexts
@runtime-edge/format	v4.0.0	printf-style string formatting utilities
@runtime-edge/cookies	v4.0.0	Standards-compliant cookie management
@runtime-edge/user-agent	v4.0.0	User agent parsing for Edge Runtime
@runtime-edge/jest-environment	v4.0.0	Jest testing environment for Edge Runtime
@runtime-edge/jest-expect	v4.0.0	Custom Jest matchers for Edge Runtime testing
@runtime-edge/ponyfill	v4.0.0	Polyfills and compatibility layers
@runtime-edge/types	v4.0.0	TypeScript type definitions

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🏗️ Architecture

Edge Runtime is built as a modular monorepo with the following structure:

packages/
├── runtime/           # Main CLI and server runtime
├── primitives/        # Core Web API implementations
├── vm/               # Secure execution environment
├── format/           # String formatting utilities
├── cookies/          # Cookie management
├── user-agent/       # User agent parsing
├── jest-environment/ # Testing infrastructure
├── ponyfill/         # Polyfills and compatibility
└── integration-tests/ # Test utilities

Each package is independently versioned and published to npm, allowing for flexible dependency management while maintaining API compatibility.

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🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

# Clone the repository
git clone https://github.com/khulnasoft/runtime-edge.git
cd runtime-edge

# Install dependencies
pnpm install

# Run tests
pnpm test

# Build all packages
pnpm build

# Start development
pnpm dev

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🧑‍🤝‍🧑 Contributors

Thanks to all our amazing contributors! 💜

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📄 License

Edge Runtime © KhulnaSoft — released under the MIT License. Authored and maintained by KhulnaSoft with help from our community contributors.

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🪄 What's New in v4.0.0

✅ Complete Web Standards Compliance - Full implementation of Fetch, Streams, Web Crypto, URL APIs
✅ Modular Architecture - Independent packages for flexible usage and dependency management
✅ Enhanced Performance - Optimized for edge computing with minimal cold starts
✅ Developer Experience - CLI tools, comprehensive testing utilities, and detailed documentation
✅ TypeScript First - Full type safety across all packages with strict typing
✅ Standards Compliant - Passes Web Platform Tests (WPT) compatibility suite
✅ Production Ready - Used in production by thousands of developers
✅ Buffer/SharedArrayBuffer Fixes - Resolved compatibility issues across all platforms
✅ Turborepo Migration - Updated to v2.0+ configuration for better build performance
✅ License Standardization - Migrated all packages to MIT license for better compatibility