Cloudflare Workers

Serverless execution platform that runs code across hundreds of edge locations worldwide, using V8 isolates instead of containers for instant startup with no cold starts. Deploy JavaScript, TypeScript, Python, Rust, or WebAssembly workloads that scale automatically and execute close to users for low latency.

Trusted by platforms such as Shopify for hosting Hydrogen storefronts and by companies like Grafbase for serverless GraphQL backends. Differs from traditional serverless like AWS Lambda by using isolates rather than container cold boots, billing on CPU time instead of wall-clock, and offering built-in storage, AI, and network services in the same runtime.

Key capabilities:

• V8 isolates for zero cold starts and immediate execution
• Integrated storage: KV, D1, R2, Queues
• Workers AI and Vectorize for edge AI inference
• Durable Objects for stateful, real-time compute
• Wrangler CLI for local dev and Git-based deployment

Developers use Workers to build APIs, handle webhooks, run A/B tests at the edge, customize responses per request, and augment existing apps with logic before traffic hits origin servers. Suits full-stack apps, serverless backends, and edge middleware that benefit from running close to end users.