Compute / Hosting
Cloudflare Workers
Edge compute on Cloudflare — deploys globally in seconds.
Monthly cost
$0–$5 / mo
Free 100k req/day; $5/mo paid
Popularity
4/5
LLM knowledge
4/5
Difficulty
Medium
#edge#serverless#low-cost
What Cloudflare Workers is good at
Strengths
- +True edge
- +Instant cold starts (V8 isolates)
- +Generous free tier
Tradeoffs
- −No full Node.js APIs
- −Some libs incompatible
Coding-agent prompt
Drop into Claude / Cursor to get idiomatic Cloudflare Workers code.
You're writing a Cloudflare Worker. Follow these rules: - V8 isolate environment — no Node APIs unless you enable `nodejs_compat`. - Durable Objects for stateful workloads; KV for fast reads; D1 for SQL; R2 for blobs. - `wrangler.toml` is the source of truth for routes, bindings, and env vars. - Bind resources through the `env` argument; never import SDK clients. - Use Hono or Itty Router for structure; native `fetch` signatures for simplest cases. - Deploy with `wrangler deploy`; preview with `wrangler dev`.
Beginner's guide to Cloudflare Workers
In one line: Code that runs in 300+ cities around the world, super close to users.
Workers let you deploy small JavaScript/TypeScript functions to Cloudflare's network of data centers. That means users anywhere in the world get a response fast.
Try it in your terminal
npm create cloudflare@latest my-appScaffold a new Worker project.
cd my-app && npx wrangler deployDeploy it. Wrangler is Cloudflare's CLI.
Popular pairings with Cloudflare Workers
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