---
title: "Cloudflare KV - Global Key-Value Database"
description: "Fast, globally distributed key-value database with infinite scale. <5ms hot read latencies, persistent storage, and ideal for read-heavy applications."
url: "https://www.cloudflare.com/products/kv"
---

# KV

> Workers KV is an eventually consistent, high-performance key-value data database built for Workers —  ideal for read-heavy, low-latency edge decision making.

## Key Features

- <5ms hot read latency
- Eventual consistency
- Unlimited storage
- Simple key-value API
- JSON value support
- TTL expiration
- Persistent storage

## Benefits

### Global Low-Latency Reads

Serve configuration or content to users worldwide with <5ms hot read latencies — thanks to Cloudflare's edge network.

### Infinite Scale, Simple API

One API to store and retrieve key-value pairs — unlimited storage, high scalability, no infrastructure to manage.

### More Than a Cache

Unlike a volatile cache, KV stores data persistently in central regions with exceptional availability and durability.

## Use Cases

### Build Distributed Configuration

Manage feature flags, A/B test variants, and redirect rules globally without managing deployments.

### Serve Static Assets

Serve small but critical files like scripts, icons, images, or JSON payloads directly from the edge.

### Personalize your app

Store user preferences or routing maps to customize experiences with near-zero latency.

### Authorization

Quickly look up API keys or authentication tokens to validate requests before they reach your origin.

### Manage Dynamic Data

Store and retrieve complex information as JSON documents, allowing your data structure to evolve easily without complex migrations.

## Resources

- [Full Documentation](https://developers.cloudflare.com/kv/): Complete technical documentation
- [Get Started](https://dash.cloudflare.com/sign-up): Sign up and start building
- [Pricing](/plans.md): See pricing details

## Related Products

- [Artifacts](/products/artifacts.md): Git-native versioned storage
- [Cache Reserve](/products/cache-reserve.md): Persistent caching for static content
- [D1](/products/d1.md): Serverless SQL
- [Data Platform](/products/data-platform.md): Ingest, Catalog & Query

---

*This is a markdown version of [https://www.cloudflare.com/products/kv](https://www.cloudflare.com/products/kv) for AI/LLM consumption.*