Celld: Run Cloudflare Durable Objects on Your Own Infrastructure

Celld: Self-hosted, distributed Durable Objects

Celld is a self-hosted, distributed durable objects runtime that runs Cloudflare Workers and Durable Objects code unchanged. It uses an S3-compatible bucket as the coordinator, eliminating the need for consensus protocols. Each cell's state is replicated to the bucket as LTX segments, ensuring zero data loss on node failure. Celld claims orders of magnitude lower cost at scale, with a 58 MB static executable or Docker container. It supports most Cloudflare Workers and Durable Objects APIs, making it a drop-in replacement for those seeking to avoid vendor lock-in.