Deno is joining Cloudflare
The Deno team is joining Cloudflare to radically simplify self-hosting Workers and Durable Objects, so developers can use the same primitives in more places.
Durable Objects in Dynamic Workers: Give each AI-generated app its own database
We’re introducing Durable Object Facets, allowing Dynamic Workers to instantiate Durable Objects with their own isolated SQLite databases. This enables developers to build platforms that run persistent, stateful code generated on-the-fly.
Sandboxing AI agents, 100x faster
We’re introducing Dynamic Workers, which allow you to execute AI-generated code in secure, lightweight isolates. This approach is 100 times faster than traditional containers, enabling millisecond startup times for AI agent sandboxing.
Unpacking Cloudflare Workers CPU Performance Benchmarks
Cloudflare investigated CPU performance benchmark results for Workers, uncovering and fixing issues in infrastructure, V8 garbage collection, and OpenNext optimizations.
Code Mode: the better way to use MCP
It turns out we've all been using MCP wrong. Most agents today use MCP by exposing the "tools" directly to the LLM.
Cap'n Web: a new RPC system for browsers and web servers
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.
Zero-latency SQLite storage in every Durable Object
Traditional cloud storage is inherently slow because it is accessed over a network and must synchronize many clients. But what if we could instead put your application code deep into the storage layer
We've added JavaScript-native RPC to Cloudflare Workers
Cloudflare Workers now features a built-in RPC (Remote Procedure Call) system for use in Worker-to-Worker and Worker-to-Durable Object communication, with absolutely minimal boilerplate. We've designed an RPC system so expressive that calling a remote service can feel like using a library
Why Workers environment variables contain live objects
Bindings don't just reduce boilerplate. They are a core design feature of the Workers platform which simultaneously improve developer experience and application security in several ways. Usually these two goals are in opposition to each other, but bindings elegantly solve for both at the same time
Introducing workerd: the Open Source Workers runtime
workerd is the JavaScript/Wasm runtime code that powers Cloudflare Workers, now open source under the Apache 2.0 license
A Workers optimization that reduces your bill
Recently, we made an optimization to the Cloudflare Workers runtime which reduces the amount of time Workers need to spend in memory. We're passing the savings on to you for all your Unbound Workers
Backwards-compatibility in Cloudflare Workers
On the Workers team, we have a policy: A change to the Workers Runtime must never break an application that is live in production.
Dynamic Process Isolation: Research by Cloudflare and TU Graz
Cloudflare worked with TU Graz to study the impact of Spectre on Cloudflare Workers and to develop new defenses against it. Today we're publishing a paper about our research.
Durable Objects: Easy, Fast, Correct — Choose three
When multiple clients access the same storage concurrently, race conditions abound. Durable Objects can make it easier. We recently rolled out improvements to Durable Objects that automatically correct many common race conditions while actually making your code faster.
Containers at the edge: it’s not what you think, or maybe it is
Today, we’re thrilled to announce that we’re exploring a new type of service at the edge: containers. If you have a use case for running containers at our edge, we’d love to know about it!
Workers Durable Objects Beta: A New Approach to Stateful Serverless
Durable Objects provide a truly serverless approach to storage and state: consistent, low-latency, distributed, yet effortless to maintain and scale. They also enable coordination and real-time collaboration between clients.
Mitigating Spectre and Other Security Threats: The Cloudflare Workers Security Model
Cloudflare is a security company, and the heart of Workers is, in my view, a security project. Running code written by third parties is always a scary proposition, and the primary concern of the Workers team is to make that safe.
WebAssembly on Cloudflare Workers
Today, we're extending Cloudflare Workers with support for WebAssembly. All Workers customers can now augment their applications with WASM at no additional cost.
