Extend your applications’ functionality with our serverless key-value store. Workers KV provides a secure low-latency key-value store across 275+ global locations. Automatic scaling supports applications that serve dozens or millions of users.
Eventually consistent by design, KV caches data globally and is ideal for reference data or assets that don't change frequently.
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Move your application closer to the user, with edge storage, improving both site performance and the overall user experience. Store, modify, and query key-value data across our globally distributed network quickly and securely.
"Over 10 million developers around the world rely on the npm Registry to download packages over 1 billion times a day. We invested in Cloudflare Workers to improve our global performance, and now with the Cloudflare Workers globally available key-value store (Cloudflare Workers KV), we can make performance improvements that used to be impossible. Cloudflare is amazing."
Co-founder and Chief Data Officer at npm
Generate customized content instead of serving static sites. Serve unique content to returning visitors, target marketing to subsets of visitors, or store user preferences.
Quickly modify, cached or uncached content, with low latency injection of personalized content from Workers KV.
Store session tokens or other user information to quickly ensure the right user has access to the right content. Move the authentication layer out of applications and into the network. Reduce the threat of application-level authentication vulnerabilities while improving performance.
Stop cheaters, spammers, trolls, and other attackers by storing IPs, user IDs, or any relevant data in Cloudflare Workers KV. Easily write to and run quick checks against large block lists to prevent attackers from reaching protected applications and posting, registering, or performing other undesired actions.
"Optimizely powers billions of customer experiences every day, making it possible for the world’s largest brands to learn from their users and deliver better experiences. One of our biggest enemies is anything which would cause latency. Cloudflare Workers KV promises to allow us to retrieve the data we need quickly, wherever on earth the customer or visitor finds themselves."
Senior Staff Performance Engineer, Optimizely