Cloudflare ORG

🥧 Savoury implementation of the QUIC transport protocol and HTTP/3

A Rust library from Cloudflare that implements the QUIC and HTTP/3 protocols at a low level, giving developers fine-grained control over connections and streams for building network infrastructure.

Cloudflare Tunnel client

Command-line tool that creates a secure tunnel from your server to Cloudflare's network, making it reachable on the internet without opening firewall ports or exposing your IP address.

Write Cloudflare Workers in 100% Rust via WebAssembly

⛅️ Home to Wrangler, the CLI for Cloudflare Workers®

The JavaScript / Wasm runtime that powers Cloudflare Workers

Cloudflare's Rust service foundations library.

A library for building fast, reliable and evolvable network services.

Cloudflare's open-source Rust framework for building high-performance proxy servers and network services, the same technology powering Cloudflare's global infrastructure at over 40 million requests per second in production.

Run OpenClaw, (formerly Moltbot, formerly Clawdbot) on Cloudflare Workers

CFSSL: Cloudflare's PKI and TLS toolkit

CFSSL is Cloudflare's open-source toolkit for creating and managing TLS certificates, letting teams run their own internal certificate authority from the command line or as an HTTP API server.

Vite plugin that reimplements the Next.js API surface — deploy anywhere

An experimental tool that lets you run an existing Next.js app on the Vite build engine and deploy it to Cloudflare Workers, without rewriting your pages or app directory structure.

Userspace WireGuard® Implementation in Rust

Build and deploy AI Agents on Cloudflare

An open-source vibe coding platform that helps you build your own vibe-coding platform, built entirely on Cloudflare stack

Cloudflare’s documentation

A self-hosted email client with an AI agent, running entirely on Cloudflare Workers

A pretty sweet vulnerability scanner

🔥 Fully-local simulator for Cloudflare Workers. For the latest version, see https://github.com/cloudflare/workers-sdk/tree/main/packages/miniflare.

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JavaScript/TypeScript-native, low-boilerplate, object-capability RPC system

Graceful process restarts in Go

🤠 Home to Wrangler v1 (deprecated)

Prometheus exporter for custom eBPF metrics

A simple vaultless password manager in Go

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Cloudflare's component library for building modern web applications.

Wildebeest is an ActivityPub and Mastodon-compatible server

The official Go library for the Cloudflare API

Low output latency streaming HTML parser/rewriter with CSS selector-based API

Templates for Cloudflare Workers

Skills for teaching agents how to build on Cloudflare.

🧙‍♀️ easily deploy cloudflare workers applications using wrangler and github actions

OAuth provider library for Cloudflare Workers

CIRCL: Cloudflare Interoperable Reusable Cryptographic Library

CLI to build and develop Next.js apps for Cloudflare Pages

Go server for two-man rule style file encryption and decryption.

A container registry backed by Workers and R2.

A command line utility to facilitate terraforming your existing Cloudflare resources.

Cloudflare Terraform Provider

A starter kit for building ai agents on Cloudflare

BPF Tools - packet analyst toolkit

PartyKit, for Workers

An execution engine for Wireshark-like filters

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Run sandboxed code environments on Cloudflare's edge network

Prometheus rule linter/validator

ArtifactFS is a filesystem driver designed to mount large git repos as quickly as possible, hydrating file contents on-the-fly instead of blocking on the initial clone. It's ideal for agents, sandboxes, containers and other use-cases where startup time is critical.

The high-scalability sFlow/NetFlow/IPFIX collector used internally at Cloudflare.

A MITM (monster-in-the-middle) detection tool. Used to build MALCOLM:

🔥Lightning-fast, globally distributed Apollo GraphQL server, deployed at the edge using Cloudflare Workers

tcpdump like XDP packet capture

The official TypeScript library for the Cloudflare API

OpenAPI 3 and 3.1 schema generator and validator for Hono, itty-router and more!

A Golang implementation of the Aho-Corasick string matching algorithm

Cloudflare fork of zlib with massive performance improvements

Component to perform network speed tests against Cloudflare's edge network

Python wrapper for the Cloudflare Client API v4

PHP library for the Cloudflare v4 API

Talk to a Cloudflare Worker from Claude Desktop!

Rust library for concurrent data access, using memory-mapped files, zero-copy deserialization, and wait-free synchronization.

Novel implementation of a Trie data structure optimized for small, sparse maps

MCP server for the Cloudflare API

Python 3 and JavaScript interoperability. Successor To PyV8 (https://github.com/flier/pyv8)

Graceful process restarts in Rust

Simple Linux seccomp rules without writing any code

mmproxy, the magical PROXY protocol gateway

Go implementation of the keyless protocol

BoringSSL bindings for the Rust programming language.

🛑 DEPRECATED, please use wrangler-action

The official Python library for the Cloudflare API

ʕ •́؈•̀) TypeScript template for Cloudflare Workers

Cloudflare ❤️ Open Source

A great place for platforms to get started on Cloudflare Workers!

Make it safe to serve untrusted SVG files

Various small golang libraries

Client for Privacy Pass protocol providing unlinkable cryptographic tokens

Chocolate Doom WebAssembly port with WebSockets support

An easier way to build with Cloudflare Durable Objects

Puppeteer Core fork that works with Cloudflare Browser Workers

Lua library for HTTP cookie manipulations for OpenResty/ngx_lua

Is BGP safe yet?

BSD socket API on steroids

cert-manager issuer for Origin CA

A library for graceful restarts in Rust

CFSSL's CA trust store repository

Rust library for the Cloudflare v4 API

A mechanism for discovering Agent Skills using the .well-known URI path prefix as specified in RFC 8615 for discovering Agent Skills.

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Cross-browser web performance testing agent

lightweight connection pooler for PostgreSQL

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Path MTU daemon - broadcast lost ICMP packets on ECMP networks

Enhance your Workers with serverless containers

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The cron parser powering Cron Triggers on Cloudflare Workers

Receives HTTP webhook notifications from AlertManager and inserts them into an Elasticsearch index for searching and analysis

Playwright MCP fork that works with Cloudflare Browser Rendering

A Cloudflare plugin for WordPress

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Proves knowledge of an ECDSA-P256 signature under one of many public keys that are stored in a list.

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Wildcard matching

a template to kickstart your Cloudflare worker!

WebAssembly version of HTMLRewriter

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Website and Message Router source code for the Multiplayer Doom on Cloudflare Workers tech demo

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Awesome Agents

A set of tools and examples to run a flow-pipeline (sFlow, NetFlow)

Developer toolkit that makes it simple to build with the Workers AI platform.

A web crawler built with Cloudflare Queues, Browser Rendering, and Workers KV.

Package ipvs allows you to manage Linux IPVS services and destinations

Alertmanager to Kubernetes Node conditions bridge

A secure clock-synchronization protocol for when rough is enough.

A coding-agent skill for multi-phase security audits with independently verified, machine-readable findings

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Export Cloudflare metrics to Prometheus. Built on Cloudflare Workers with Durable Objects for stateful metric accumulation.

DMARC reports processor using Cloudflare Workers and Email Workers

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Northwind Traders D1 Demo

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UDP Graceful Restart Marshal

Provides a CPanel Plugin to allow one click Cloudflare setup.

A fast, modular, and operationally boring Rust private registry implementation.

Implementation of DAP

HTML5-compliant parser and serializer than enables building transformation pipeline in a pluggable manner

Oblivious DoH library in Go

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slirp4netns implementation using gvisor/netstack

Rust implementation of the IETF MoQ Transport protocol

Sign and verify orchestrated HTTP requests

A Workers AI provider for the vercel AI SDK

Playwright fork that works with Cloudflare Browser Rendering

A fast implementation of single-pattern substring search using SIMD acceleration.

Reference demo and modified PostgreSQL driver to connect Cloudflare Workers to a relational database.

Write Cloudflare Workers in 100% Python via Pyodide.

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logshare is a library & CLI client for retrieving logs from Cloudflare's Enterprise Log Share service.

Oblivious DoH client

✨ Deploy Cloudflare Workers applications with (almost) no-config, using GitHub Actions

Create a PostgreSQL database with a REST API, exposed to the internet securely with Cloudflare Tunnel

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A highly customizable block page built in Cloudflare Workers that provides enriched Access Deny reasoning to end users.

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Tool for solving BPF filters and crafting packets based on these.

Reference demo and modified MySQL driver to connect Cloudflare Workers to a relational database.

RealtimeKit UI provides pre-built, ready-to-use UI components for integrating with Cloudflare RealtimeKit

Web examples for Cloudflare RealtimeKit :rocket:

Tiled transparency logs libraries and applications

:key: a flexible and expressive approach to access-control

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Backoff timer shared between several projects.

Example project showing how to deploy your React application to Cloudflare Workers Sites

OpenFeature compliant provider for Cloudflare's low-latency feature flag platform.

A TypeScript Library for the Privacy Pass Issuance Protocol

Low-latency hash map using minimal perfect hash functions and compact encoding.

Your Key Transparency auditor companion

A set of useful helper methods for writing functions to handle Cloudflare Pub/Sub messages (https://developers.cloudflare.com/pub-sub/)

A TypeScript library for Oblivious Pseudorandom Functions

Private Access Tokens reference implementation

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Cloudflare's template for open source community resources

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LangChain integrations for Cloudflare

A TypeScript Library for Blind RSA Signature protocol

CLI tool for upgrading the terraform-provider-cloudflare to a new major version

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@cloudflare/workspace, give your agent a computer 💻

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A TypeScript Issuer for the Privacy Pass Authentication Protocol

These examples demonstrate how to use the Cloudflare API within interactive Python notebooks.

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https://workers-nodejs-compat-matrix.pages.dev

A TypeScript Attester using Turnstile for the Privacy Pass Authentication Protocol

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AI Search embeddable snippet for Cloudflare AI Search

A TypeScript Origin for the Privacy Pass Authentication Protocol

A worker that can be used for doing basic CRL checks. It assumes that the request has gone through Access MTLS.

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Development and deployment CLI for Cloudflare Privacy Pass implementation

workerd-cxx is a fork of cxx crate for workerd/edgeworker project

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Prebuilt tools and utilities required for ongoing development in the workerd repo.

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Example implementation of an Access-protected private Kubernetes API

A set of tools for generating signed exchanges at serve time.

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Tools for customers using Programmable Flow Protection

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Astro integration for localization and automated AI translation of content

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Cloudflare R2 Log Ingestion Add-on for Splunk. Ingests Cloudflare Logpush files from R2 via S3-compatible API. No AWS STS dependency.

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