Edge Functions

Run JavaScript, TypeScript, or WebAssembly at 200+ edge locations worldwide. Sub-millisecond cold starts. Zero DevOps. Unlimited scale.

Start Free View Pricing

200+

Edge Locations

<1ms

Cold Start

10M+

Free Requests/mo

To Start

Global by Default

Your code runs in 200+ cities across 100+ countries. Users hit the nearest location automatically.

KV Storage

Low-latency key-value storage at the edge. Perfect for configuration, session data, and caching.

Durable Objects

Coordinate state across requests. Build real-time collaborative apps, game servers, and more.

Cron Triggers

Schedule your functions to run on a recurring basis. No separate cron service needed.

Queues

Reliable message passing between Workers. Build event-driven architectures at the edge.

Analytics Engine

Write unlimited data points. Query with SQL. Built-in aggregation and time-series support.

Deploy in Seconds

worker.js

export default {
  async fetch(request, env) {
    const url = new URL(request.url);

    // Edge-side routing
    if (url.pathname === '/api/hello') {
      return new Response(JSON.stringify({
        message: 'Hello from the edge!',
        location: request.cf?.city
      }), {
        headers: { 'Content-Type': 'application/json' }
      });
    }

    // Fetch from origin with caching
    return fetch(request);
  }
}

Deploy with CLI

# Install CLI
$ npm install -g hostscience

# Login
$ hostscience login

# Deploy to 200+ locations
$ hostscience edge deploy

Deploying worker.js...
✓ Published to 200+ locations
✓ https://my-worker.hostscience.io