2026-03-09
Today we’re disclosing request smuggling vulnerabilities when our open source Pingora service is deployed as an ingress proxy and how we’ve fixed them in Pingora 0.8.0. ...
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2026-02-27
The Web streams API has become ubiquitous in JavaScript runtimes but was designed for a different era. Here's what a modern streaming API could (should?) look like....
2026-02-24
One engineer used AI to rebuild Next.js on Vite in a week. vinext builds up to 4x faster, produces 57% smaller bundles, and deploys to Cloudflare Workers with a single command....
2026-02-20
The Cloudflare API has over 2,500 endpoints. Exposing each one as an MCP tool would consume over 2 million tokens. With Code Mode, we collapsed all of it into two tools and roughly 1,000 tokens of context....
2026-02-13
ecdysis is a Rust library enabling zero-downtime upgrades for network services. After five years protecting millions of connections at Cloudflare, it’s now open source....
October 28, 2025 1:00 PM
Cloudflare is launching an experiment with Chrome to evaluate fast, scalable, and quantum-ready Merkle Tree Certificates, all without degrading performance or changing WebPKI trust relationships....
September 23, 2025 1:10 PM
Today, Cloudflare is proud to announce support for two cornerstone frameworks in the modern web ecosystem: we’re partnering with Webflow to sponsor Astro, and with Netlify to sponsor TanStack....
September 22, 2025 1:00 PM
We are excited to announce our support of two independent, open source projects: Ladybird, an ambitious project to build an independent browser, and Omarchy, an opinionated Arch Linux for developers. ...
September 22, 2025 1:00 PM
Cap'n Web is a new open source, JavaScript-native RPC protocol for use in browsers and web servers. It provides the expressive power of Cap'n Proto, but with no schemas and no boilerplate....
May 20, 2025 1:00 PM
Developers have a gut-felt understanding for performance, but that intuition breaks down when systems reach Cloudflare’s scale....
May 01, 2025 1:01 PM
You can now connect to Cloudflare's first publicly available remote Model Context Protocol (MCP) servers from any MCP client that supports remote servers. ...
April 11, 2025 1:00 PM
Learn about recent developments in Certificate Transparency (CT), and how we built a next-generation CT log on top of Cloudflare's Developer Platform....
April 08, 2025 1:00 PM
You can now add a Deploy to Cloudflare button to your repository’s README when building a Workers application, making it simple for other developers to set up and deploy your project! ...
March 25, 2025 1:00 PM
OPKSSH (OpenPubkey SSH) is now open-sourced as part of the OpenPubkey project....
January 08, 2025 2:00 PM
At Cloudflare, we treat developer content like an open source product. This collaborative approach enables global contributions to enhance quality and relevance for a wide range of users. This year,...
October 22, 2024 1:00 PM
Cloudflare’s global fleet benefits from being managed by open source firmware for the Baseboard Management Controller (BMC), OpenBMC. This has come with various challenges, some of which we discuss here with an explanation of how the open source nature of the firmware for the BMC...
September 27, 2024 1:00 PM
At Cloudflare, we believe in the power of open source. With Project Alexandria, our expanded open source program, we’re helping open source projects have a sustainable and scalable future, providing them with the tools and protection needed to thrive....
September 10, 2024 2:00 PM
Pingora handles 35M+ requests per second, so saving a few microseconds per request can translate to thousands of dollars saved on computing costs. In this post, we share how we freed up over 500 CPU ...
August 22, 2024 2:00 PM
We’re excited to announce wildcard support across our Ruleset Engine-based products and our open-source wildcard crate in Rust. Configuring rules has never been easier, with powerful pattern matching enabling simple and flexible URL redirects and beyond for users on all plans....
July 23, 2024 3:15 PM
Cloudflare is excited to be a launch partner with Meta to introduce Workers AI support for Llama 3.1...
