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Cloudflare Wrangler

Build and deploy Cloudflare Workers and Pages

Homepage Repository
Cloud & Services linuxmacoswindows TypeScript Apache-2.0

Description

Wrangler is the CLI for Cloudflare's developer platform. It lets you create, develop, and deploy Workers (serverless functions at the edge), Pages (static sites), R2 (object storage), D1 (SQLite databases), KV (key-value storage), and other Cloudflare developer services.

Install

npmnpm i -g wrangler

AI Summary

Build and deploy Cloudflare Workers, Pages, and developer services. Develop locally with a full edge runtime, manage KV/R2/D1 storage, and deploy serverless functions to Cloudflare's global network.

Capabilities

  • + Create and deploy Cloudflare Workers (serverless edge functions)
  • + Deploy static sites and full-stack apps to Cloudflare Pages
  • + Local development with Miniflare, a full Workers runtime simulator
  • + Manage KV namespaces, R2 buckets, and D1 SQLite databases
  • + Tail real-time logs from deployed Workers
  • + Manage secrets and environment variables

Use When

  • → Building and deploying serverless functions on Cloudflare's edge
  • → Deploying static sites or full-stack apps to Cloudflare Pages
  • → Need edge-first computing with low latency globally
  • → Working with Cloudflare storage services (KV, R2, D1)

Avoid When

  • x Need long-running server processes (Workers have execution time limits)
  • x Locked into another cloud provider's ecosystem
  • x Applications requiring traditional server infrastructure

Usage Patterns

Start local development

wrangler dev

Runs the Worker locally with hot-reloading and the full Workers API

Deploy a Worker

wrangler deploy

Publishes the Worker to Cloudflare's global edge network

Tail production logs

wrangler tail --format pretty

Streams real-time request and console logs from the deployed Worker

Create a KV namespace

wrangler kv:namespace create MY_KV

Creates a new KV namespace and outputs the binding for wrangler.toml

Input / Output

stdin: Values for KV/R2 writes can be piped from stdin
stdout: Deployment URLs, logs, and resource information
Exit codes:
0 Success
1 Error

Typical Pipelines

wrangler deploy && wrangler tail --format json | jq '.logs[]'
wrangler kv:key list --namespace-id=abc123 | jq '.[].name'
wrangler d1 execute my-db --command 'SELECT * FROM users' --json | jq '.results'

Related Tools

vercel alternative

Vercel for Next.js and frontend; Wrangler for Cloudflare's edge platform
netlify-cli alternative

Netlify for Jamstack; Wrangler for Cloudflare Workers and Pages
flyctl alternative

flyctl for containerized apps; Wrangler for serverless edge functions
View AGENTS.md for Cloudflare Wrangler