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Cloudflare brings in Deno’s team to merge celld with workerd
Cloudflare is absorbing the Deno team to merge celld with workerd and ease self-hosted Workers; Deno runtime gets one year of fixes, Deploy shuts in six months, and terms stay undisclosed.
Nathan Mercer · TickerGrove Technology Desk · Published
Sources
Based on Cloudflare’s Oct. 9, 2026 Deno-join blog, Deno’s Oct. 9, 2026 company blog, and TechCrunch’s Oct. 10, 2026 report.
Cloudflare and Deno company blogs dated Oct. 9, 2026 (team join; workerd+celld merge; runtime/Deploy/JSR path); TechCrunch Oct. 10, 2026 secondary (acquisition framing; terms undisclosed; ~$26M prior raise).
Cloudflare said the entire Deno team is joining the company to push self-hosted Workers and Durable Objects, merging Deno’s celld runtime with Cloudflare’s workerd. Financial terms were not disclosed.
The team join, not a priced deal
Cloudflare and Deno announced on Oct. 9, 2026, that the Deno team is joining Cloudflare. On Cloudflare’s blog, Kenton Varda and Deno co-founder Ryan Dahl said the move is meant to make self-hosting Workers and Durable Objects radically simpler, including by merging Cloudflare’s open-source workerd runtime with Deno’s celld, an implementation of the Workers programming model that Deno built to run outside Cloudflare’s network.
TechCrunch, writing on Oct. 10, described the transaction as Cloudflare acquiring Deno and said financial terms were not disclosed. Neither company blog posted a purchase price, equity mix, or closing timeline.
What happens to Deno’s products
Ryan Dahl’s Deno blog lays out the concrete product path. Deno Land will support the Deno runtime for another year with monthly releases limited to bug fixes and security updates, then end its own development of that runtime. The project stays open source, and Dahl invited others who want to continue it.
Deno Deploy will keep running for six months before shutting down, with migration support for paying customers moving to Cloudflare Workers. JSR, Deno’s TypeScript-first package registry, will keep operating, with its infrastructure moving to Cloudflare. Deno said it will keep supporting rusty_v8 and work toward integrating that work into workerd.
Why Cloudflare wants the stack
Varda’s Cloudflare post frames celld as the self-hostable Workers path the company had wanted to prioritize: an implementation designed to stay compatible with Cloudflare’s model while focusing on operators who run outside Cloudflare’s edge. Dahl and Deno co-founder Bert Belder will lead that self-hosting effort at Cloudflare, according to the company posts and TechCrunch’s account.
The strategic pitch is distribution of a single programming model—Workers and Durable Objects—across Cloudflare’s network and customer-owned infrastructure, especially for agent-style workloads that need persistent state and WebSockets. That is a platform bet, not a disclosed financial size.
Funding backdrop (secondary)
TechCrunch said Deno had raised a total of about $26 million, including a Series A led by Sequoia. That figure is not restated in the Oct. 9 company blogs and is attributed here to TechCrunch only.
Cloudflare brings in the Deno team to push self-hosted Workers
Cloudflare said the people who build Deno are joining Cloudflare. They want to make it easier to run Cloudflare Workers software on your own machines, not only on Cloudflare’s network. Deno will keep updating its separate runtime for about a year, then stop developing it. Deno’s hosted Deploy service will shut down in about six months. The companies did not say how much Cloudflare paid.
Cloudflare absorbs Deno team; workerd+celld merge; Deploy 6mo wind-down
Oct. 9, 2026: Cloudflare blog (Kenton Varda + Ryan Dahl) — entire Deno team joining Cloudflare; merge workerd + celld; simplify self-hosting Workers and Durable Objects. Deno blog (Ryan Dahl) — runtime: 1 year monthly bugfix/security releases then Deno Land ends runtime development (stays open source); Deploy: 6 months then shutdown with migration help to Workers for paying customers; JSR continues, infra moves to Cloudflare; rusty_v8 support continues, integrate into workerd. TechCrunch Oct. 10 — frames as Cloudflare acquiring Deno; terms not disclosed; Deno prior raise ~$26M incl. Sequoia Series A; co-founders Ryan Dahl (Node.js creator) and Bert Belder. No purchase price on company blogs.
What is still unsettled
Purchase price, equity consideration, and closing mechanics were not disclosed in the company blogs or TechCrunch’s report. Exact calendar dates for the end of Deno runtime support and the Deploy shutdown depend on the Oct. 9 announcement clocks and were not pinned to a single calendar day in the posts.
Document trail
Sources & evidence
Sources used for this piece.
Deno (deno.com)
Company blog post · 2026-10-09
TechCrunch (techcrunch.com)
Cloudflare acquires Deno to improve its Workers programming model
News article · 2026-10-10
Cloudflare (blog.cloudflare.com)
Company blog post · 2026-10-09
Visual brief
Verified figures
Sources & evidenceDeno prior funding total (TechCrunch)
about $26M
USD
TechCrunch report of Deno historical raise
TechCrunch (techcrunch.com)Cloudflare acquires Deno to improve its Workers programming modelNews article · 10-10-2026
Corrections
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