Cell D
A self-hosted implementation of distributed Durable Objects and Workers, compatible with the Cloudflare technology stack and released as open source under the Apache 2.0 license.
Timeline (last 90 days)
In August 2026, Ryan Dahl released the open source project Cell D, and two months later the entire Deno team joined Cloudflare, with Cell D at the core of that acquisition.
Cell D is a self-hosted distributed durable objects and Workers implementation, open sourced under the Apache 2.0 license.
Cloudflare Workers architect Kenton Varda publicly responded that when the Deno team released Cell D they were "very happy," because the self-hosting need finally had an answer outside the official offering, and users can migrate seamlessly from Cell D to Workers and vice versa.
Cell D provides a self-deployable compatible implementation under Apache 2.0, giving users an exit path: an application can first run on Cell D on its own servers and later migrate to Workers as it scales, or migrate back the other way.
All Facts (4)
Cell D is a self-hosted distributed durable objects and Workers implementation, open sourced under the Apache 2.0 license.
50%UnverifiedCloudflare Workers architect Kenton Varda publicly responded that when the Deno team released Cell D they were "very happy," because the self-hosting need finally had an answer outside the official offering, and users can migrate seamlessly from Cell D to Workers and vice versa.
50%UnverifiedCell D provides a self-deployable compatible implementation under Apache 2.0, giving users an exit path: an application can first run on Cell D on its own servers and later migrate to Workers as it scales, or migrate back the other way.
50%UnverifiedIn August 2026, Ryan Dahl released the open source project Cell D, and two months later the entire Deno team joined Cloudflare, with Cell D at the core of that acquisition.
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