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# Deno is joining Cloudflare
- URL: https://www.stirup.si/deno-is-joining-cloudflare-1d5fd202/
- Published: 2026-10-12T05:30:16.000Z
- Updated: 2026-10-12T05:30:16.000Z
- Description: Cloudflare has acquired Deno, with the aim of leveraging its open-source project 'celld' to advance self-hosting capabilities for Cloudflare Workers. However, Deno's runtime will not be actively maintained beyond the next year, shifting focus to the development of celld.
- Author: Satish Das
- Tags: AI, Stirup Research

## Acquisition and Strategic Shift

Cloudflare has acquired Deno, a decision that aligns with its broader vision to enhance the self-hosting capabilities of Cloudflare Workers. The acquisition centers on Deno's open-source project 'celld,' which implements the Durable Objects pattern from Cloudflare Workers. This move is intended to expand the utility of the Workers programming model beyond Cloudflare's ecosystem.

## Future of Deno

Despite the acquisition, Cloudflare has outlined a clear path for Deno's future. The Deno runtime will be supported for one additional year, with monthly updates focused on bug fixes and security patches. After this period, Cloudflare will cease active development of the Deno runtime. However, Deno will remain open source, inviting the broader community to continue its evolution.

## Developer Perspectives

Ryan Dahl, the creator of Deno and Node.js, has acknowledged the decision as a joint one, emphasizing that Deno has not been solving large-scale problems and has been influenced by the need for Node compatibility. He highlights that Deno's most notable feature, its permissions system, has been adopted in Node.js, albeit with limitations in network host allow-listing.

## celld and the Workers Model

celld, a key component of Deno's contribution, has demonstrated effectiveness by relying on object storage for coordination and persistence. It introduces a new model for server development, diverging from traditional APIs for file system and network interactions. This innovation is seen as a potential foundation for future developments in the Workers programming model.

## Implications for Developers

While the acquisition brings opportunities for Deno's integration into Cloudflare's ecosystem, developers should be aware of the timeline for Deno's runtime support. The shift in focus to celld may influence the direction of future tooling and abstractions, particularly in the context of self-hosting and server development.

**Source:** [Simon Willison](https://simonwillison.net/2026/Oct/9/deno-is-joining-cloudflare/?ref=stirup.si). Analysis based on publicly available information; no hands-on testing is claimed.