Dev tools · September 28, 2018
Cloudflare Workers KV
Fast, Distributed Key-Value Store
Cloudflare Workers KV launched on September 28, 2018 with 7 votes, #988 of 2,635 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 8 years on.
What it does
Workers KV stores data centrally and caches it globally, optimizing for high-read, low-latency workloads.
KV is a global, low-latency, key-value data store. It stores data in a small number of centralized data centers, then caches that data in Cloudflare's data centers after access. KV supports exceptionally high read volumes with low latency, making it possible to build dynamic APIs that scale thanks to KV's built-in caching and global distribution. Requests which are not in cache and need to access the central stores can experience higher latencies. When you write to KV, your data is written to central data stores. Your data is not sent automatically to every location's cache. Initial reads from a location do not have a cached value. Data must be read from the nearest regional tier, followed…from developers.cloudflare.com
Does a similar job
all alternatives →- OSOpenWorkers – Self-hosted Cloudflare workers in RustJan 2026 · openworkers.com · ▲500
I've been working on this for some time now, starting with vm2, then deno-core for 2 years, and recently rewrote it on rusty_v8 with Claude's help. OpenWorkers lets you run untrusted JS in V8 isolates on your own infrastructure. Same DX as Cloudflare Workers, no vendor lock-in. What works today: fetch, KV, Postgres bindings, S3/R2, cron scheduling, crypto.subtle. Self-hosting is a single docker-compose file + Postgres. Would love feedback on the architecture and what feature you'd want next.
A text-only blog engine using Cloudflare workers and KV store2024 · github.com · ▲103A simple to use text only blog using CloudFlare Workers and KV - jonfraser/simpletext

Cloudflare WalletsAug 2026 · blog.cloudflare.com · ▲272the programmable wallet for the agentic Internet

Serverless doc writing app built using Cloudflare Workers and KV Store2019 · telex.blog · ▲69
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