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Cloudflare Workers vs AWS Lambda vs Deno Deploy (2026): Best Edge Functions?

Edge functions run your code close to users worldwide. Cloudflare Workers, AWS Lambda, and Deno Deploy take three different approaches to serverless at the edge. Here's how they compare on cold starts, pricing, and the developer experience that actually matters.

Quick Comparison

Cloudflare Workers AWS Lambda Deno Deploy

Runtime V8 isolates (custom) Node.js, Python, Java, Go, etc.

Cold start Near-zero (isolates) 50-500ms (container-based)

Global locations 330+ (largest edge network) 30+ regions (not edge by default)

Free tier 100K req/day 1M req/month (1 year)

Max execution time 30s (paid: 15 min with tail workers) 15 min

Node.js compat Limited (not Node — V8 isolates) Full Node.js

npm support Limited (subset works) Full (entire ecosystem)

Cloudflare Workers — Largest…