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Cloudflare Workers

Cloudflare Workers

A serverless platform for deploying JavaScript, TypeScript, Python, and Rust functions at the edge with zero cold starts, automatic scaling, and pay-per-use pricing.

Cloudflare Workers is an open-source alternative to:

Cloudflare Workers preview

Cloudflare Workers

Deploy serverless functions globally in seconds with Cloudflare Workers. Built on isolates architecture, Workers offer unmatched performance, automatic scaling, and pay-per-use pricing—no cold starts, no infrastructure management.

Key Features

  • Global Deployment: Run functions in 330+ cities worldwide with automatic scaling from zero to millions of requests.
  • Zero Cold Starts: Eliminate latency with instant function execution, no prewarming required.
  • Pay-Per-Use Pricing: Only pay for CPU execution time, not idle resources.
  • Multi-Language Support: Write functions in JavaScript, TypeScript, Python, or Rust.
  • Edge Computing: Process requests at the edge to reduce latency and offload server load.
  • Integrated Bindings: Connect seamlessly to databases (D1), storage (KV), AI models, and more.
  • Local Development: Test changes locally using the open-source workerd runtime.
  • Built-in Queues & Cron: Handle background jobs, webhooks, and scheduled tasks reliably.

Tech / Self-Hosting

Cloudflare Workers is a fully managed serverless platform hosted by Cloudflare. The underlying runtime, workerd, is open-source and can be self-hosted for custom deployments. Workers integrate with Cloudflare's global network for optimal performance and security.

Pricing: Free tier available; paid plans for higher usage.

Self-Hosted: Possible via workerd runtime (open-source).