Celld
Durable object runtime in Developer tools
Open source Durable Objects runtime that stores each object as SQLite in an S3 bucket you own, so it runs outside Cloudflare. Caveat: needs S3 even for local prototyping.
Open source Durable Objects runtime that stores each object as SQLite in an S3 bucket you own, so it runs outside Cloudflare. Caveat: needs S3 even for local prototyping.
24 people gave an opinion
- recommend it
- 19
- criticize it
- 5
- approval share
- 79%
Recommended in 3 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 19 people recommend itNeeds 10 or more, met.
- 3.8 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 3 of 13 monthsNeeds 4 or more, not met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Durable Objects outside a single provider
“having durable objects outside Cloudflare and also self hosted ones means a lot”
Comment from 6 Aug 2026 in “Celld: Self-hosted, distributed Durable Objects” “So happy to see support for running durable objects outside of one provider.”
Comment from 6 Aug 2026 in “Celld: Self-hosted, distributed Durable Objects” “There is a far less lock-in to CF than there once was.”
Comment from 4 Oct 2026 in “We want you to build the next Git platform on Cloudflare” Runs on ordinary VPS hosting
“Celld is pretty cool in that you can configure a small fleet in the same VPS and get super fast durable writes”
Comment from 7 Oct 2026 in “Show HN: Durable Actors – OSS Durable Objects with configurable compute” “there's no reason this wouldn't run fine on most hosting, you definitely don't need bare metal”
Comment from 5 Aug 2026 in “Celld: Self-hosted, distributed Durable Objects” Object storage for coordination and persistence
“Bootstrapping both durability and coordination off object storage simplifies so many things for self-hosting.”
Comment from 9 Oct 2026 in “Cloudflare acquires Deno” “celld has been working remarkably well, depending only on object storage for coordination and persistence.”
Comment from 9 Oct 2026 in “Cloudflare acquires Deno” Open alternative to Cloudflare Workers
“a self-hosted version of Cloudflare Workers that actually doesn’t suck”
Comment from 9 Oct 2026 in “Cloudflare acquires Deno” “will make an open source self host-able workers platform”
Comment from 6 Oct 2026 in “Friendship ended with Deno, now Node is my best friend”
What people warn about
Each mark is one comment
Consistency doubts about S3 coordination
“the actual segment writes looked like plain, unconditional PUTs with no epoch check”
Comment from 7 Aug 2026 in “Celld: Self-hosted, distributed Durable Objects” “that S3 _is_ the control plane and consensus layer, no?”
Comment from 5 Aug 2026 in “Celld: Self-hosted, distributed Durable Objects” Project care and future doubted
“LLM-isms like this on your home page make me less trusting in the care gone into the project.”
Comment from 13 Aug 2026 in “Celld: Self-hosted, distributed Durable Objects” “killing off promising not-vendor-locked open source project”
Comment from 11 Oct 2026 in “Cloudflare acquires Deno”
What people said
24 of the 26 comments that mention it, newest first. Each links to the original comment.
“A distributed operating system running in userspace is the primitive that can break apart the siloing”
“killing off promising not-vendor-locked open source project”
“Celld seems great, did not even know!”
“celld has been working remarkably well, depending only on object storage for coordination and persistence.”
“a self-hosted version of Cloudflare Workers that actually doesn’t suck”
“Bootstrapping both durability and coordination off object storage simplifies so many things for self-hosting.”
“Celld is pretty cool in that you can configure a small fleet in the same VPS and get super fast durable writes”
“with a known good open source history. Durable writes there are as low as 1ms.”
“I get the sense that they'd just been brewing things around durable objects, and I'm excited for it coming to fruition”
“will make an open source self host-able workers platform”
“There is a far less lock-in to CF than there once was.”
“LLM-isms like this on your home page make me less trusting in the care gone into the project.”
“Ryan has been talking about it for a bit”
“the actual segment writes looked like plain, unconditional PUTs with no epoch check”
“having durable objects outside Cloudflare and also self hosted ones means a lot”
“The goal of this new design is to scale to a cluster while being operationally very easy to set up.”
“So happy to see support for running durable objects outside of one provider.”
“huge step forward for maintaining reliable state across decentralized nodes”
“where it's overkill, this is where Celld is a good fit”
“there's no reason this wouldn't run fine on most hosting, you definitely don't need bare metal”
“I like it! Would be great if I could run locally from the start without configuring an s3 for easy playing/prototyping”
“Each object is its own SQLite database, addressed by name and replicated to an S3-compatible bucket you own”
“with Celld do i need to buy bare metal in major continents”
“that S3 _is_ the control plane and consensus layer, no?”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.