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Cloudflare Workers SDK — develop Wrangler and the Workers local tooling stack in one monorepo

OSS scale score 275.8OSS health 100Update pace 204 commits/30d
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Stars
4,556
Primary language
TypeScript
License
Apache-2.0
Repository last updated
Sep 21, 2026

Overview

Cloudflare Workers SDK is Cloudflare's official monorepo for tools that create, develop, test, and deploy Workers projects. It contains Wrangler, create-cloudflare (C3), Miniflare, and related packages.

Features and best fit

Based on official documentation; not hands-on tested · Content checked:

Use Wrangler for development, configuration, and deployment

Wrangler provides the primary CLI path for running Workers locally, managing project configuration and bindings, and deploying applications.

Sources: [2][3]

Combine C3 and Miniflare from project creation through local evaluation

create-cloudflare scaffolds new projects, while Miniflare supplies a local Workers simulation used by the development toolchain.

Sources: [2]

Useful for following the official Workers developer toolchain

It serves both users of Wrangler and C3 and developers who need to inspect or contribute to the implementation of Workers tooling.

Sources: [2]

Separate the tooling monorepo from the runtime and mutable beta builds

The Workers runtime lives in cloudflare/workerd. The README also warns that beta packages generated from main are mutable and unsuitable as stable dependencies.

Sources: [2]

Official sources

  1. [1]cloudflare/workers-sdk repository(2026-09-21)
  2. [2]Cloudflare Workers SDK README(2026-09-21)
  3. [3]Wrangler documentation(2026-09-21)
  4. [4]Cloudflare Workers getting started(2026-09-21)
  5. [5]Workers SDK root package.json(2026-09-21)
Supplemental curator note

This repository is the developer-tooling monorepo, not the Workers runtime itself. It contains Wrangler, create-cloudflare, Miniflare, and related packages. The README warns that beta packages generated from main through `pkg.pr.new` are mutable and should not be used as stable project dependencies. The root package declares `MIT OR Apache-2.0`.

Try it in 3 steps

  1. 1

    Create a Workers project with C3

    Use create-cloudflare prompts to choose a template or framework and generate a project with Wrangler configuration.

    npm create cloudflare@latest
  2. 2

    Start local development

    Run the local Workers development environment and verify bindings and routing before deployment.

    cd <project> && npm run dev
  3. 3

    Deploy to Cloudflare

    Confirm the authenticated account and Wrangler configuration, then deploy the Worker.

    npx wrangler deploy
Check the official README

Growth

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4,556 Stars

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Development activity

Last 90 days · weekly

Commits (last 30 days)
204
Open PRs
203

Development activity is still being collected.

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GitHub data

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GitHub Topics

  • serverless
  • cli
  • javascript
  • wasm
  • cloudflare
  • cloudflare-workers
Stars
4,556
Forks
1,523
Watchers
75
Open issues
293
Contributors
410
Primary language
TypeScript
License
Apache-2.0
Repository last updated
Sep 21, 2026
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