Brief
Cloudflare announces Deno integration for its Workers platform
The company says the move lets developers use Deno on Cloudflare's global edge network.
By Felo News Desk · Published
Cloudflare announced that the Deno runtime will be available on its Workers platform, enabling developers to run Deno‑based applications at the edge, according to the company's blog on Oct. 9.
What happened
The blog post explains that the integration follows the release of "celld" in August, an open‑source implementation of Workers and Durable Objects. Cloudflare says the addition allows apps built with Deno to execute across its worldwide network of data centers, leveraging the same low‑latency, cost‑effective model it promotes for JavaScript‑based Workers.
What the reports add
Cloudflare counters a recurring internet theory that its Workers create a vendor lock‑in by making applications hard to move elsewhere. The post argues that the lock‑in claim is mistaken, emphasizing that Workers are designed for simplicity and price efficiency rather than to trap customers. It also notes that the Workers runtime, called workerd, is open source, a fact the company says was necessary to win large customers such as Shopify in 2022.
What was said
Cloudflare writes, "We built Workers differently because it is a better way to build web applications," and adds, "'Lock‑in' actually hurts us – that's why we went open source." The post also states, "If there were truly no escape hatch from Workers, then some of our largest customers would never have signed on with us in the first place."
How it came about
The integration follows Cloudflare's broader push to open its edge computing stack, including earlier announcements such as making Threat Signals free for all accounts (Sept. 29) and planning quantum‑safe TLS certificates (Sept. 30). By adding Deno, Cloudflare aims to broaden the programming models available on its edge while maintaining the performance and pricing advantages it promotes for Workers.
Key facts
- Cloudflare will support the Deno runtime on its Workers platform. (blog.cloudflare.com)
- The integration follows the August release of the open‑source "celld" implementation. (blog.cloudflare.com)
- Cloudflare states its Workers runtime, workerd, is open source. (blog.cloudflare.com)
Sources
- [1] blog.cloudflare.com — originally reported as “Deno is joining Cloudflare”








